bulletin no. mce-c 5017p

Bulletin No. MCE-C 5017P

1

MOTOYAMA Style JNO/JNB safety relief valves covermost process plant overprotection applications

and complement our other extensive linesto satisfy your diversified requirements

GUARANTEE "All Products of MOTOYAMA ENGINEERING WORKS LTD. are guaranteed for a period of one year from date of shipment to be free from defective workmanship and material. Within this period, any of our products claimed defective may be returned to our factory after written notification to and authorization by us, and if found to be defective after examination by us, the products will be repaired or replaced free of charge. F.O.B. our factory. Such defects shall be exclusive of the effects of corrosion, erosion,normal wear or improper handling or storage.

We make no representation, warranty or guaranty, express or implied, with regard to our products except as specifically stated. When in doubt as to the proper application of any particular product, you are invited to contact our International Sales Sect. We cannot otherwise be responsible for the selection of unsuitable equipment. Suitability of the material and product for the use contemplated by the buyer shall be the sole responsibility of the buyer.

Except as specifically set forth above and for warranty of title, MOTOYAMA MAKES NO WARRANTY, EXPRESS OR IMPLIED, OF ANY KIND INCLUDING WITHOUT LIMITATION, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE

In no event will MOTOYAMA be liable for incidental or consequential damage."

CONTENTS

●Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1●Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2●Designation/Code for Style JNO/JNB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3●JNB & JNO-H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4●JLT-JNO/JLT-JNB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6●Caps and lifting levers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12●Standard valve materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14●Special valve materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15●Sizes, pressure‚ temperature limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16●Saturated steam capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44●Air capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45●Water capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46●Seat tightness—metal-to-metal seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47●Valve installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48●Flanges and flange facing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49●Equivalents and conversion factors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50●Ordering information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51●On site acceptance inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52●Other products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Notice: Specification in this bulletin is subject to change without notice due to time-to-time improvement.

Page

1

Specifications

⃝JNO/JNB full nozzle top guided and direct spring loaded safety relief valves are manufactured in accordance with requirements of ASME Code Section VIII.

※1　For other than the ASME certification product, MOTOYAMA execute API std527 by a request.

⃝Allowable. leak rate

⃝Inlet flange ratings

⃝Outlet flange rating

⃝Temperature ranges

⃝Sizes

⃝Orifices

⃝Dimensions

API Standard 527 (except steam service) ※1

150 lb to 2500 lb ASME

150 lb and 300 lb ASME

–268˚C (–450F) to +538˚C (+1000F)

1"D2" to 8"T10"

D (0.709cm2) to T (167.740cm2)

Conforming to API Standard 526

Service

Style

JNO (Conventional type)

JNB (Balanced Bellows type)

JLT-JNO/JNB(JNO/JNB with liquid trim)

JNO-H (Open bonnet type)

Gasor

Vapor

–

– – –––

– – –

10

10

10

25

25

10

7

7

7

25

25

10

Liquid Steam

Overpressure (%)

Gas orVapor or

SteamLiquid

Blowdown (%)

Gas orVapor or

SteamLiquid

O-Ringsoftseat

Valve Styles and Services

: Recommended : Acceptable

Features

1 Outstanding PerformanceSmooth flow pattern enables to obtain large capacity of discharge in a stable manner. Capacities are certified by the National Board of Boiler and Pressure Vessel Inspectors.

2 Single Ring AdjustmentBlowdown control is provided with the adjustable nozzle ring only.

3 Positive Self AlignmentDouble universal ball joint assures tight-seal and proper alignment.

5 Excellent Seat Tightness

6 High Coefficient of Discharge for Liquid Service

Flat and thermally balanced disc insert makes no thermal distortion.

Patented JLT liquid trim acquires high capacity.

7 Easy and Economical Maintenance Minimized parts number saves customer's investment to own and to maintain valves.

4 Non Galling TroublesSpindle guide employes the advantages of large guiding ratio and of difference in material hardness.

2

Designation/Code for Style JNO/JNB

JNBlank ; Standard Trim

Blank ; Standard structure

JLT– ; Liquid trim

H

O

; Blanced bellows

O

B

; Conventional

1 ; Inlet Flange ASME/JPI CI 150

(Style JNO and ASME SEC. VIII only)







; Open Bonnet for Steam Service

; O-Ring for Soft Seat

P

J

; Piston-Balanced Type

; Jacketed Body

［Pressure Rating］A ; Screwed cap（Standard）

B ; Screwed cap and test gag

C ; Open cap and Regular lifting lever

D ; Bolted cap and Packed lifting lever

E ; Bolted cap and Packed liftinglever and test gag

G ; Bolted cap

H ; Bolted cap and test gag

［Caps Types］

2 ; –268 deg. C to 101 deg. C ASTM CF8M, JIS SCS14A

4 ; –59 deg. C to 30 deg. C ASTM CF8, JIS SCS13A

5 ; –29 deg. C to +232 deg. C ASTM WCB, JIS SCPH2

3 ; –100 deg. C to 60 deg. C ASTM CF8, JIS SCS13A

6 ; +233 deg. C to +427 deg. C ASTM WCB, JIS SCPH2

7 ; +428 deg. C to +538 deg. C ASTM WC6, JIS SCPH21

［Temperature Ranges］〈Standard body materials〉

Blank ; Standard Material

S0, S04, S05, S, S1, S4, S5,M, M1, M4, M5, etc.

［Optional Materials Code］

Style Code

3

4 5

JNO & JNO-H

Style JNO closed bonnet

Style JNO-H open bonnet

JNO Conventional typeJNO is a basic type of the J series and is a high-performance safety valve acquiring certification of ASME SEC. VIII.The closure member secures a high alignment by universal joint and spindle guide style and maintains high sealing characteristics.Because JNO is simple structurally, part replacement is easy, and maintenance performance is high. Therefore, this series can simplify the type change, too.

JNO-H Open Bonnet typeStyle JNO-H with open bonnet and Type C regular lifting lever is available as an option for ASME Section VIII steam applications. Only the bonnet need be changed to convert a Style JNO Type C to Style JNO-H.With the open bonnet feature, carbon steel spring material can be used to +343˚C (+650F).

5

JNB & JNB-P

JNB Balanced Bellows type

Bellows

Vent hole with nipple & elbow

SizeD·E : Rc⅜F~T : Rc½

Style JNB-P Piston-Balanced

JNB Balanced Bellows typeA high capacity Safety-Relief Valve, but developed especially for services where the valve must operate under conditions of built-up or superimposed back pressure due to being connected to a closed blowdown system, and for those services where severe corrosion or fouling of working parts can be anticipated. The bellows subassembly is the only construction difference between style JNB and JNO valves and conversions from one style to the other are simple.

JNB-P Piston-Balanced typeJNB-P maintains certain performance without set pressure changing by action of the supporting piston even if the bellows are demaged by any possibility.This piston is construction of the labyrinth seal and minimizes leakage of the fluid to the ambient in the bellows failure.Therefore, this type establishes double security and keeps the characteristics of the safety valve until damaged bellows are exchanged.

6 7

JLT-JNO/JLT-JNBJLT Liquid Trim

Full lift and rated capacity at 10% overpressure with stable operation from a pressure relief valve specifically designed for liquid service.

High Coefficient of Discharge

The JLT Liquid trim construction has a high coefficient of discharge. Generally a smaller JLT orifice size may be selected than that of a conventional pressure relief valve sized for the same application. Smaller orifice sizes mean reduced valve and related piping costs.

High Capacity at 10% Overpressure

Published valve capacities are based on capacity certification tests performed at 10% overpressure. This eliminates the need to use the traditional overpressure derating factor based on 25% overpressure is based on the ASME Boiler and Pressure Vessel Code that permits pressure in a vessel to rise 10% above the maximum allowable working pressure (MAWP) of the vessel during an overpressure excursion.

Typical Valve Opening and closing Curve

7

JNO-O/JNB-OO-Ring Soft Seat

O-Ring Soft Seat Materials and Pressure/Temperature Limits

Kalrez® (80)Q(80)FKM(70)

Kalrez® (90)

Kalrez® (90)FKM(90)

NBR(70)EPDM(90)Kalrez® (80)Q(70)FKM(75)

NBR(90)EPDM(90)Kalrez® (90)FKM(90)

Q(70)

PTFE

Q(80)

PTFE

Figures in ( ) are Durometer Hardness Specifications

NB

R(5

0)Q

(50)

Q(5

0)K

alre

z®(8

0)Q

(50)

FK

M(7

0)K

alre

z®(8

0)This O-Ring of JNO/JNB is placed in a groove of the disc insert and slightly touches nozzle seat. The spring load is supported with metal seat.Moreover, it was in the construction which had superior closure characteristics to use inlet pressure because an O-Ring was located inside of nozzle seat.EPDM = Ethylene Propylene RubberNote: Other soft seat materials are available on request.

For O-Ring seats below –150F (–101˚C) consult MOTOYAMA.For steam service, metal-to-metal seats are recommended; consult MOTOYAMA if soft seats are required.

MAXIMUM SETPRESSURE LIMITS

ORIFICE

DEFGHJKLMNPQRT

14801480148014801480148014801000110010001000

600300300

10.2010.20 10.20 10.20 10.20 10.20 10.20

6.897.586.896.894.132.062.06

MAXIMUM SETPRESSURE

PSIG MPaG

8 9

This series is the construction that enclosed a body portion in jacket and is the type which can warm a valve in hot oil, steam or hot water.This type is most suitable for a paraffin series fluid having high viscosity coefficient at atmospheric temperature.There are the semi-jacket type which only a valve casing enclosed and the full-jacket type enclosed to a valve casing, an inlet and an outlet.

Semi Jacket Type

Full Jacket Type

Size RatingInlet

RatingASME

Dimensions

E P F Q

Approx. Height HACap TypeA,B　C,D,E

3／4 D 11（　） 150 160 130 18.5 41 470 515

2（　），3（　） 300 160 130 18.5 41 470 5154（　） 600 160 130 18.5 41 470 515

1　DE 　2l（　） 150 160 125 18.5 41 470 515

2（　），3（　） 300 160 125 18.5 41 470 5154（　） 600 160 125 18.5 41 470 515

11／2 F 2

1（　） 150 175 152.5 18.5 41 550 5952（　） 300 175 152.5 18.5 41 550 5953（　） 300 175 152.5 18.5 41 550 5954（　） 600 175 152.5 18.5 41 550 595

11／2 G 21／2

1（　） 150 150 135 18.5 41 525 5702（　） 300 150 135 18.5 41 525 5703（　） 300 180 152.5 18.5 41 555 6004（　） 600 180 152.5 18.5 41 555 600

11／2 H 31（　） 150 185 150 18.5 47.5 580 6252（　） 300 185 150 18.5 47.5 580 625

2 H 33（　） 300 180 150 18 44 580 625

47 600 180 150 18 44 580 6254（　） 600 200 170 18 50 630 680

2 J 31（　） 150 165 160 18 41 540 5852（　） 300 165 160 18 41 540 585

21／2 J 43（　） 300 220 190 16 45 670 710

47 600 220 190 16 45 670 7104（　） 600 220 190 16 45 755 795

Size（　）×（　）

Connect-flangeRating

InletRatingASME

Dimensions

E P F Q

Approx. Height HACap TypeA,B　C,D,E

3／4 D 1（11／2 ）×（2）

1（　） 150 160 130 18.5 41 470 5152（　），3（　） 300 160 130 18.5 41 470 515

4（　） 600 160 130 18.5 41 470 515

1　DE 　2

（2）×（3）

1（　） 150 160 125 18.5 41 470 5152（　），3（　） 300 160 125 18.5 41 470 515

4（　） 600 160 125 18.5 44.5 470 515

11／2 F 2（21／2 ）×（3）

1（　） 150 175 152.5 18.5 47.5 550 5952（　） 300 175 152.5 18.5 47.5 550 5953（　） 300 175 152.5 18.5 47.5 550 5954（　） 600 175 152.5 18.5 47.5 550 595

11／2 G 21／2

（21／2 ）×（4）

1（　） 150 180 152.5 18.5 47.5 555 6002（　） 300 180 152.5 18.5 47.5 555 6003（　） 300 180 152.5 18.5 47.5 555 6004（　） 600 180 152.5 18.5 47.5 555 600

11／2 H 3（3）×（5）

1（　） 150 185 150 18.5 47.5 580 6252（　） 300 185 150 18.5 47.5 580 625

2 H 3（3）×（5）

3（　） 300 190 150 18 50 590 63547 600 190 150 18 50 590 635

4（　） 600 200 170 18 50 630 680

2 J 3（3）×（5）

1（　） 150 185 160 18 42 560 6052（　） 300 185 160 18 47 560 605

21／2 J 4（4）×（6）

3（　） 300 230 190 16 55 680 72047 600 230 190 16 55 680 720

4（　） 600 230 190 16 55 765 805• Rc1/2 is normal, but can produce NPT(F)1/2 by a request

about the connection of an inlet and an outlet of the jacket.

JNO-J/JNB-J

9

Selection of the safety valveWhen an engineer decides really a safety valve, the person confirms the application law or standard, and it is necessary to know fluid condition in detail as possible exactly. Additionally, it is necessary to consider the specification of the material for the corrosive fluid (see page15 on the material code) and the cap type (see page 12). In the sizing in particular, the engineer must understand requirements such as relieving pressure, back pressure, the required relieving capacity, molecular weight, relieving temperature as possible exactly.For example, when an engineer calculates liquid service with gas by mistake and greatly roughly estimates required relieving capacity, The calculated safety valve size is large, and a safety valve having the orifice area that is excessive than really required orifice area may be chosen.When such a safety valve operates, chattering and hunting phenomenon occur and may cause the damage of equipment and the safety valve.

The selection of the safety valve, please follow the following orders.

1. Calculation of the required relieving areaPlease calculate required relieving area according to each application law or standard shown in page10. Please consider the correction such as the overpressure or viscosity coefficient.

2. Determination of the orifice sizeThe determination orifice is larger than previous calculated required relieving area and the nearest orifice is chosen.

3. Determination of a valve type, a size and the connectionThe combination of inlet size, outlet size and connection rating for each orifice was decided based on longtime experience and experiment to meet design (strength, flow rate) in the relieving.Therefore, please avoid evaluating a special safety valve except this combination. Additionally, it is the reason that it does not often satisfy relieving capacity to select excessive orifice except this combination.Please choose this combination by "Size, Pressure, Temperature limits" of page16 to 43.

4. Selection of a cap and the special material (see page12, 13, 15)

10 11

The application low and calculating equationFrom applicable code / standard and state of service fluid, select one of calculation form Nos. from the following table. And then make sure that allowable overpressure conform to purpose of the overpressure protection at the customer's specification. Calculate required effective discharge area by substituting each value in the service conditions of customer's inquiry with each designation in the following equation. Any specific coefficient to be substituted in the relevant equation can be referred in ENGINEERING HANDBOOK (PRESSURE RELIEF VALVES).

Calculation From No.

State of Fluids

Applicable Code and Standard

Equations for Required Orifice Area Unit of Area Descriptions for Designation in Equation

SI01 Steam

MOTOYAMA STANDARD/API STD 520, PART I Sizing and Selection (2008) /ASME Sec. Vll (PRESSURE VESSEL)

A´ =190.5×W´

P1×K×Kw×Kc×Kn×Kshmm2

A' = required effective discharge area (mm2)W' = required flow rate (kg/h)P1 = the upstream relieving pressure (kPaA)

P1=P(1+OVRP)+101.3P=set pressure (kPaG)OVRP=allowable overpressure (%)

When 207kPaG of set pressure and 10% overpressure is required, P1 will beP1=P+21+101.3

K = effective coefficient of discharge, K=0.975Kw = backpressure correction factor, for conventional

PRV, Kw is Kw=1.0.Kc = combination correction factor for installation

with a rupture disk upstream of the PRVKc = 1.0, when a rupture disk is not installed;Kc = 0.9, when a rupture disk is installed

in combination with a PRV and the combination does not have a certified value;

Kn = correction factor for the Napier equation and Kn=1.0 (P1 ≦ 10339 kPaA)

Ksh= superheat correction factor, for saturated steam at any pressure, Ks 1.0.

SI03Gas&

Vapor

MOTOYAMA STANDARD /API STD 520,PART I Sizing and Selection (2008) /ASME Sec.Vlll (PRESSURE VESSEL)

W´A´ =

C×K×P1×Kw×KcM

Z×Tmm2


P1=P(1+OVRP)+101.3P=set pressure (kPaG)OVRP=allowable overpressure (%)

When 207kPaG of set pressure and 10% overpressure is required, P1 will beP1=P+21+101.3

K = effective coefficient of discharge, K=0.975C = a function of ratio of the ideal gas specific

heats (k=Cp/Cv) of gas or vapor at inlet relieving temperature

Kw = backpressure correction factorwhich is the capacity correction factor due to back pressure.

Kc = combination correction factor forinstallation with a rupture disk upstream of the PRVKc = 1.0, when a rupture disk is not installed;Kc = 0.9, when a rupture disk is installed


M = molecular weight of the service fluidZ = compressibility factor. If it is unknown, use Z=1.0T = relieving temperature (Absolute Temperature: K)

11

Calculation From No.

State of Fluids

Applicable Code and Standard

Equations for Required Orifice Area Unit of Area Descriptions for Designation in Equation

SI04 Liquid

MOTOYAMA STANDARD/API STD 520, PART I Sizing and Selection(2008)/ASME Sec.Vlll (PRESSURE VESSEL)

(Only for Style JLT-JNO/JNB and Series #900)

mm2

A' = required effective discharge area in mm2 ;W' = required flow rate, L/Min ;P = upstream relieving pressure in kPaG;

this is P1=P(1+OVRP)P=set pressure, kPaGOVRP = allowable overpressure, %

PB = backpressure in kPaGKK = effective coefficient of discharge K=0.65Kw = backpressure correction factor which is the

capacity correction factor due to backpressure. For conventional PRVs, use Kw=1.0

Kc = combination correction factor for installation with a rupture disk upstream of the PRVKc = 1.0, when a rupture disk is not installed;Kc = 0.9, when a rupture disk is installed


Kv = capacity correction factor due to viscosity.G = specific gravity of the liquid at the flowing

temperature referred to water at standard conditions;

11.78×W´A´ =

K×Kw×Kc×Kv×P1−PB

G

SI44 Liquid

API STD 520, PART I Sizing and Selection (2008)

(For PRVa not requiring capacity certification)

mm2

A' = required effective discharge area in mm2 ;W' = required flow rate, L/Min;P = set pressure in kPaGPB = total backpressure in kPaGK = effective coefficient of discharge, K=0.62Kw = backpressure correction factor which is the

capacity correction factor due to backpressure. For conventional PRVs, use Kw=1.0

Kc = combination correction factor for installation with a rupture disk upstream of the PRVKc = 1.0, when a rupture disk is not installed;Kc = 0.9, when a rupture disk is installed


Kv = capacity correction factor due to viscosity.Kp = correction factor due to overpressure;

at 25% overpressure, Kp is equal to 1.0.G = specific gravity of the liquid at the flowing

temperature referred to water at standard conditions;

11.78×W´A´ =

K×Kw×Kc×Kv×Kp×1.25P−PB

G

SI00 Steam

ASME Sec. l (POWER BOILER)

A´ =W´

5.25×K×P1×Kshmm2


P1=P(1+OVRP)+0.101P=set pressure (MPaG)OVRP=allowable overpressure (%)

When set pressure is less than 0.467PaG, P1 will beP1=P+0.014+0.101

Ksh= superheat correction factor, for saturated steam at any pressure, Ksh=1.0.

K = effective coefficient of discharge, K=0.878

12 13

Caps and lifting leversAvailable Cap Types

Cap Types Top Construction Application

Type A

Screwed Cap

Cap

Gasket

This is standard cap. If no other cap type is required, it is automatically selected.

Type B

Screwed Cap and Test Gag

Cap Plug

Cap Top

Test Gag

Cap Plug Gasket

Gasket

When hydrostatic test is carried out while leaving the PRV installed on the over pressure system or vessel, type B is recommended to hold the valve seatclose with the Test Gag.

Type C

Open Cap and Regular Lifting

Lever

Spindle Nut

Cap

Lever

Pin

Pin

Forked Lever

Cap Set Screw

Cap Plug

Cap Plug Gasket

Test Gag

For steam and air service where the valve cap is not required to be tight on the discharge side and where conditions are such that periodic testing is desirable. Regular lifting levers may be furnished with a supplementary gagging device on special order. When inlet pressure of PRV is pressurized at 75% and over of set pressure, you can lift the lever up to discharge and relief the pressure.

13

Cap Types Top Construction Application

Type D

Bolted Cap and Packed Lifting

Lever

Cap

Cap stud Bolt

Cap stud Nut Lever

Spindle Nut

Casket

Dog

Dog Shaft

For services where tightness on the discharge side is necessary and where conditions are such that periodic testing is desirable. Also recommended for hot water services.　When inlet pressure of PRV is pressurized at 75% and over of set pressure, you can lift the lever up to discharge and relief the pressure.

Type E

Bolted Cap and Packed Lifting Lever and Test

Gag

Cap

Cap Plug

Cap Plug Gasket

Cap Stud Bolt

Cap Stud Nut

Spindle Nut

Gasket

Dog

Test Gag

Dog Shaft

Lever

Valves with screwed caps, packed levers or bolted caps can be fitted to accommodate test rods which will hold the valve closed when the equipment on which are installed is hydrostatically tested.

Type G

Bolted Cap

Cap

Cap Stud Bolt

Cap Stud Nut

Gasket

Bolted Cap is available on request as option. Better seal tightness than that of screwed cap can be obtained,

Type H

Bolted Cap and Test Gag

Cap

Cap Plug

Cap Plug Gasket

Cap Stud Bolt

Gasket

Test Gag

Cap Stud Nut

Type G Bolted Cap changes to Type H Bolted Cap and Test Gag.

14 15

Standard valve materialsJNO/JNB valve materials

● = Recommended spare parts◇ = Style JNB employs 316 St. St.※ 1 For steam service, CoCr alloy is processed.※ 2 Guide Stem used J~T Orifice, D~H Orifice is one Piece Disc Holder.※ 3 See Page 7 for O-Ring Soft Seat materials and Pressure/temperature limits.

Ref.

No.Part Name

–29˚Cto +232˚C

JNO/JNB ( ) 5

+233˚Cto +427˚C

JNO/JNB ( ) 6

+428˚Cto +538˚C

JNO/JNB ( ) 7

–59˚C to –30˚C

JNO/JNB ( ) 4

–100˚C to –60˚C

JNO/JNB ( ) 3

01

02

03

04

● 05

● 5C

5D

● 06

07

08

09

● 10

● 11

12

13

14

15

16

● 18

● 19

20

21

22

● 23

Body

Nozzle

Nozzle Ring

Set Screw

Disc Holder

Bellows

Guide Stem ※ 2

Disc lnsert

O-Ring ※ 3

Guide

Spindle

Spring

Spring Washer (s)

Bonnet

Bonnet Stud

Bonnet Nut

Adjusting Bolt

Adj. Bolt Nut

Set Screw Gasket

Guide Gasket

Seal & Wire

Seal Clip

A Cap

Cap Gasket

Carbon Steel

304 St. St. ※ 1

316 St. St.

304 St. St.

304 St. St. ※ 1

316L St. St.

304N2 St. St.

304 St. St. ※ 1

304 St. St. ※ 1

420 St. St.

Carbon Steel

Steel

Carbon Steel

Alloy Steel

Steel

420 St. St.

Steel

Soft Steel

Soft Steel

St. St. & Tin

St. St.

Carbon Steel

Soft Steel

Alloy Steel

Chrome Moly Steel

Chrome Moly Steel 304 St. St.

304 St. St.

304 St. St.

304 St. St.

304 N2 St. St.

304 St. St.

Carbon Steel

304 St. St.

304 St. St.

304 St. St.

304 St. St.

304 St. St.

304 St. St.

304 St. St.

304 St. St.

◇

◇

◇

316 St. St.

316 St. St.

304 St. St.

316 St. St.

–268˚Cto –101˚C

JNO/JNB ( ) 2

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

NBR,FKM,Q,Rubber

15

Special valve materialsSpecial materials

Ref.

No.Part Name

Standard Material

JNO/JNB ( ) 5

SCPH 2/304 St.St.

( )( ) SO4

SCPH 2/316 St.St.

( )( ) S1 ( )( ) S4

304 St.St.

( )( ) SO5 ( )( ) SO

01

02

03

04

05

5C

※5D

06

7

08

09

10

11

12

13

14

15

16

20

22

Body

Nozzle

Nozzle Ring

Set Screw

Disc Holder

Bellows

Guide Stem

Disc lnsert

O-Ring ※ 3

Guide

Spindle

Spring

Spring Washer (s)

Bonnet

Bonnet Stud

Bonnet Nut

Adjusting Bolt

Adj. Bolt Nut

Gasket

Seal & Wire

A Cap

Carbon Steel

304 St. St.

316 St. St.

304 St. St.

304 St. St.

316L St. St.

304N2 St. St.

304 St. St.

NBR, FKM, Q, Rubber

304 St. St.

420 St. St.

Carbon Steel

Steel

Carbon Steel

Alloy Steel

Steel

420 St. St.

Steel

Soft Steel

St. St.

Carbon Steel

304 St. St.

304 St. St.

304 St. St.

316 St. St.

316 St. St.

316 St. St.

420 St. St.

420 St. St.

Steel

Soft Steel

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

304 St. St.

304 St. St.

304 St. St.

304 St. St.

304N2 St. St.

304 St. St.

304 St. St.

304 St. St.

304 St. St.

304 St. St.

304 St. St.

304 St. St.

304 St. St.

304 St. St.

316 St. St.

304 St. St.

Ref.

No.Part Name

Standard Material

JNO/JNB ( ) 5

316 Stainless Steel

( )( ) S5 ( )( ) S

Carbon Steel/MONEL®

( )( ) M1 ( )( ) M4

MONEL®

( )( ) M5 ( )( ) M

01

02

03

04

05

5C※5D

6

7

08

09

10

11

12

13

14

15

16

20

22

Body

Nozzle

Nozzle Ring

Set Screw

Disc Holder

Bellows

Guide Stem

Disc lnsert

O-Ring ※ 3

Guide

Spindle

Spring

Spring Washer (s)

Bonnet

Bonnet Stud

Bonnet Nut

Adjusting Bolt

Adj. Bolt Nut

Gasket

Seal & Wire

A Cap

Carbon Steel

304 St. St.

316 St. St.

304 St. St.

304 St. St.

316L St. St.

304N2 St. St.

304 St. St.

NBR, FKM, Q, Rubber

304 St. St.

420 St. St.

Carbon Steel

Steel

Carbon Steel

Alloy Steel

Steel

420 St. St.

Steel

Soft Steel

St. St.

Carbon Steel

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

316 St. St.

Carbon Steel

MONEL®

304 St. St.

304 St. St.

304N2 St. St.

MONEL®

304 St. St.

420 St. St.

Carbon Steel

Steel

Carbon Steel

420 St. St.

Steel

Soft Steel

Carbon Steel

MONEL®

MONEL®

MONEL®

MONEL®

MONEL®

MONEL®

MONEL®

304 St. St.

MONEL®

MONEL®

MONEL®

MONEL®

MONEL®

MONEL®

MONEL®/INCONEL®

MONEL®

〔Remarks〕The material Hastelloy® C is available to manufacture.The pressure-temperature tables and charts on page 16 to 43 apply to standard materials.※Guide Stem used J~T Orifice, D~H Orifice is one Piece Disc Holder.

Al Meta

16 17

Specifications-Styles JNO, JNB and JNO-HSizes, pressure‚ temperature limits

D Orifice0.709 cm2

(0.110 Sq. In.)Effective Area

Low Set Pressure Limits:JNO=0.10 MPaG (1.0 kg/cm2G)JNB=0.17 MPaG (1.75 kg/cm2G)

Sizes and Pressure/Temperature Limits (See also Set Pressure Chart Opposite)

Valve Style

Valve Size StandardConnectionsASME (ANSI)

FlangesRaised Face

Maximum Set Pressure (MPaG) Back Press.Limit @ 38˚C

(MPaG)

Back Press.Limit @ 38˚C(kg/cm2G) Inlet

tem-pera-ture

InletMaximum Set Pressure (kg/cm2G)

Inlet–268˚C

to–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

–268˚Cto

–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO JNB

Inlet Outlet

Inlet×

Outlet

JNOJNBJNO-H

JNOJNB

*Upper temperature limit of JNO-H-15, 25, 35 and 45 valves is +343˚C (+650F)

※Weight of D or E cap increases by 6kg.

Dimensions and Weights D Orifice

Valve Style Valve Size

Valve Dimensions (mm)Center to Face Used To

Find Bolt LengthInlet Outlet

E P

Approximate HeightValve (Cap) TypeA, B, G C, D, EQ

JNOJNBJNO-H

12, 13, 14, 15, 16, 22, 23, 24, 25, 26

32, 33, 34, 35, 36, 37

42, 43, 44, 45, 46, 47

3/4 ×1

3/4 ×13/4 ×1

12, 13, 14, 15, 16, 22, 23, 24, 25, 26

32, 33, 34, 35, 36, 37

42, 43, 44, 45, 46, 47

55, 56, 57, 65, 66, 67

75, 76, 77

1×2

1×2

1×2

11/2 ×2

11/2 ×3

95.0

95.0

95.0

105.0

105.0

105.0

105.0

139.5

110.0

110.0

110.0

114.5

114.5

114.5

139.5

178.0

395

395

395

405

405

405

445

475

440

440

440

450

450

450

515

545

10

10

10

15

15

15

20

32

31.3

31.3

31.3

39

39

39

51

63JNOJNB

15253545

556575

(3/4)1×2(1)(3/4)1×2(1)(3/4)1×2(1)(3/4)1×2(1)

11/2 ×211/2 ×2

11/2 ×3(21/2)

150300300600

150150150150

90015002500

300300300

JNOJNBJNO-H

JNOJNB

16263646

566676

(3/4)1×2(1)(3/4)1×2(1)(3/4)1×2(1)(3/4)1×2(1)

11/2 ×211/2 ×2

11/2 ×3(21/2)

150300300600

150150150150

90015002500

300300300

JNOJNBJNO-H

JNOJNB

JNOJNB

3747

576777

(3/4)1×2(1)(3/4)1×2(1)

11/2 ×211/2 ×2

11/2 ×3(21/2)

300600

150150

90015002500

300300300

14243444

(3/4)1×2(1)(3/4)1×2(1)(3/4)1×2(1)(3/4)1×2(1)

150300300600

150150150150

13233343

(3/4)1×2(1)(3/4)1×2(1)(3/4)1×2(1)(3/4)1×2(1)

150300300600

150150150150

12223242

(3/4)1×2(1)(3/4)1×2(1)(3/4)1×2(1)(3/4)1×2(1)

150300300600

150150150150

1.891.894.969.92

1.891.894.969.92

1.891.894.969.92

1.961.965.10

10.20

1.271.964.248.51

15.3025.5441.36

12.7221.2341.36

1.961.961.961.96

4.134.135.10

1.581.581.581.58

3.443.443.44

20.020.052.0

104.0

156.0260.5421.8

13.020.043.286.8

20.020.020.020.0

129.7216.5421.8

42.142.152.0

20.020.020.020.0

42.142.152.0

20.020.0

42.142.152.0

16.116.116.116.1

–29˚Cto

232˚C

233˚Cto

427˚C

428˚Cto

538˚C

–30˚Cto

–59˚C

–60˚Cto

–100˚C

–101˚Cto

–268˚C

35.135.135.1

16.116.116.116.1

35.135.135.1

16.116.1

35.135.135.1

13.020.043.286.8

129.7216.5421.8

5.620.028.858.0

86.8144.8241.1

35.871.3

107.2178.5297.4

15.130.2

45.775.9

126.5

1.581.581.581.58

3.443.443.44

1.581.58

3.443.443.44

1.961.961.961.96

4.134.135.10

1.961.96

4.134.135.10

1.271.964.248.51

12.7221.2341.36

0.551.962.825.68

8.5114.2023.64

3.516.99

10.5117.5129.16

1.482.96

4.487.44

12.41

1.891.891.891.89

1.891.891.891.89

1.891.891.891.89

1.581.581.581.58

1.581.581.581.58

1.581.581.581.58

19.319.350.6

101.2

19.319.350.6

101.2

19.319.350.6

101.2

19.319.319.319.3

16.116.116.116.1

19.319.319.319.3

16.116.116.116.1

19.319.319.319.3

16.116.116.116.1

Approx.Weight

(kg)TypeA※

17

Pressure-Temperature Limit Chart - To ASME (ANSI) cl 600

D Orifice0.709 cm2


Pressure-Temperature Limit Chart - ASME (ANSI) cl 900, cl 1500, cl 2500

18 19

Specifications-Styles JNO, JNB and JNO-H

E Orifice1.264 cm2





Valve Style


FlangesRaised Face


(MPaG)


tem-pera-ture


Inlet–268˚C

to–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

–268˚Cto

–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

Inlet Outlet

Inlet×

Outlet

JNOJNBJNO-H

JNOJNB


Dimensions and Weights E Orifice




E P


JNOJNBJNO-H

12, 13, 14, 15, 16, 22, 23, 24, 25, 26

32, 33, 34, 35, 36, 37

42, 43, 44, 45, 46, 47

1×2

1×2

1×2

55, 56, 57, 65, 66, 67

75, 76, 77

11/2 ×2

11/2 ×3

105.0

105.0

105.0

105.0

139.5

114.5

114.5

114.5

139.5

178.0

405

405

405

445

475

450

450

450

515

545

15

15

15

20

32

39

39

39

51

63JNOJNB

15253545

556575

1×21×21×21×2

11/2 ×211/2 ×2

11/2 ×3(21/2)

150300300600

150150150150

90015002500

300300300

JNOJNBJNO-H

JNOJNB

16263646

566676

1×21×21×21×2

11/2 ×211/2 ×2

11/2 ×3(21/2)

150300300600

150150150150

90015002500

300300300

JNOJNBJNO-H

JNOJNB

JNOJNB

3747

576777

1×21×2

11/2 ×211/2 ×2

11/2 ×3(21/2)

300600

150150

90015002500

300300300

14243444

1×21×21×21×2

150300300600

150150150150

13233343

1×21×21×21×2

150300300600

150150150150

12223242

1×21×21×21×2

150300300600

150150150150

1.891.894.969.92

1.891.894.969.92

1.891.894.969.92

1.961.965.10

10.20

1.271.964.248.51

15.3025.5441.36

12.7221.2341.36

1.961.961.961.96

4.134.135.10

1.581.581.581.58

3.443.443.44

20.020.052.0

104.0

156.0260.5421.8

13.020.043.286.8

20.020.020.020.0

129.7216.5421.8

42.142.152.0

20.020.020.020.0

42.142.152.0

20.020.0

42.142.152.0

16.116.116.116.1

–29˚Cto

232˚C

233˚Cto

427˚C

428˚Cto

538˚C

–30˚Cto

–59˚C

–60˚Cto

–100˚C

–101˚Cto

–268˚C

35.135.135.1

16.116.116.116.1

35.135.135.1

16.116.1

35.135.135.1

13.020.043.286.8

129.7216.5421.8

5.620.028.858.0

86.8144.8241.1

35.871.3

107.2178.5297.4

15.130.2

45.775.9

126.5

1.581.581.581.58

3.443.443.44

1.581.58

3.443.443.44

1.961.961.961.96

4.134.135.10

1.961.96

4.134.135.10

1.271.964.248.51

12.7221.2341.36

0.551.962.825.68

8.5114.2023.64

3.516.99

10.5117.5129.16

1.482.96

4.487.44

12.41

1.891.891.891.89

1.891.891.891.89

1.891.891.891.89

1.581.581.581.58

1.581.581.581.58

1.581.581.581.58

19.319.350.6

101.2

19.319.350.6

101.2

19.319.350.6

101.2

19.319.319.319.3

16.116.116.116.1

19.319.319.319.3

16.116.116.116.1

19.319.319.319.3

16.116.116.116.1

Approx.Weight

(kg)TypeA※

19


E Orifice1.264 cm2



20 21


F Orifice1.980 cm2






Valve Style


FlangesRaised Face


(MPaG)


tem-pera-ture


Inlet–268˚C

to–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

–268˚Cto

–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

Inlet Outlet

Inlet×

Outlet

JNOJNBJNO-H

JNOJNB

15253545

556575

11/2 ×211/2 ×2

11/2 ×2

11/2 ×2

11/2 ×3(21/2)11/2 ×3(21/2)11/2 ×3(21/2)

150300300600

150150150150

90015002500

300300300

JNOJNBJNO-H

JNOJNB

16263646

566676

11/2 ×211/2 ×2

11/2 ×2

11/2 ×2

11/2 ×3(21/2)11/2 ×3(21/2)11/2 ×3(21/2)

150300300600

150150150150

90015002500

300300300

JNOJNBJNO-H

JNOJNB

JNOJNB

3747

576777

11/2 ×211/2 ×2

11/2 ×211/2 ×2

11/2 ×3(21/2)

300600

150150

90015002500

300300300

14243444

11/2 ×211/2 ×2

11/2 ×2

11/2 ×2

150300300600

150150150150

13233343

11/2 ×211/2 ×2

11/2 ×2

11/2 ×2

150300300600

150150150150

12223242

11/2 ×211/2 ×2

11/2 ×2

11/2 ×2

150300300600

150150150150

1.891.894.969.92

1.891.894.969.92

1.891.894.969.92

1.961.965.10

10.20

1.271.964.248.51

15.3025.5434.47

12.7221.2334.47

1.961.961.961.96

5.105.105.10

1.581.581.581.58

3.443.443.44

20.020.052.0

104.0

156.0260.5351.5

13.020.043.286.8

20.020.020.020.0

129.7216.5351.5

52.052.052.0

20.020.020.020.0

52.052.052.0

20.020.0

52.052.052.0

16.116.116.116.1

–29˚Cto

232˚C

233˚Cto

427˚C

428˚Cto

538˚C

–30˚Cto

–59˚C

–60˚Cto

–100˚C

–101˚Cto

–268˚C

35.135.135.1

16.116.116.116.1

35.135.135.1

16.116.1

35.135.135.1

13.020.043.286.8

129.7216.5351.5

5.620.028.858.8

86.8144.8241.1

35.871.3

107.2178.5297.4

15.130.2

47.178.4

130.8

1.581.581.581.58

3.443.443.44

1.581.58

3.443.443.44

1.961.961.961.96

5.105.105.10

1.961.96

5.105.105.10

1.271.964.248.51

12.7221.2334.47

0.551.962.825.68

8.5114.2023.64

3.516.99

10.5117.5129.16

1.482.96

4.487.44

12.41

1.891.891.891.89

1.891.891.891.89

1.891.891.891.89

1.581.581.581.58

1.581.581.581.58

1.581.581.581.58

19.319.350.6

101.2

19.319.350.6

101.2

19.319.350.6

101.2

19.319.319.319.3

16.116.116.116.1

19.319.319.319.3

16.116.116.116.1

19.319.319.319.3

16.116.116.116.1

Dimensions and Weights F Orifice




E P


JNOJNBJNO-H

12, 13, 14, 15, 16, 22, 23, 24, 25, 26

32, 33, 34, 35, 36, 37

42, 43, 44, 45, 46, 47

11/2 ×2

11/2 ×2

11/2 ×2

55, 56, 57, 65, 66, 67

75, 76, 77

11/2 ×3

11/2 ×3

124.0

124.0

124.0

124.0

139.5

120.5

152.5

152.5

165.0

178.0

495

495

495

510

585

540

540

540

555

680

20

24

24

32

42

41

43

43

51

63JNOJNB

Approx.Weight

(kg)TypeA※

21


F Orifice1.980 cm2



22 23


G Orifice3.245 cm2






Valve Style


FlangesRaised Face


(MPaG)


tem-pera-ture


Inlet–268˚C

to–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

–268˚Cto

–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO JNB

Inlet Outlet

Inlet×

Outlet

JNOJNBJNO-H

JNOJNB

15253545

556575

11/2 ×3(21/2)11/2 ×3(21/2)11/2 ×3(21/2)11/2 ×3(21/2)

11/2 ×3(21/2)2×32×3

150300300600

150150150150

90015002500

300300300

JNOJNBJNO-H

JNOJNB

16263646

566676

11/2 ×3(21/2)11/2 ×3(21/2)11/2 ×3(21/2)11/2 ×3(21/2)

11/2 ×3(21/2)2×32×3

150300300600

150150150150

90015002500

300300300

JNOJNBJNO-H

JNOJNB

JNOJNB

3747

576777

11/2 ×3(21/2)11/2 ×3(21/2)

11/2 ×3(21/2)2×32×3

300600

150150

90015002500

300300300

14243444

11/2 ×3(21/2)11/2 ×3(21/2)11/2 ×3(21/2)11/2 ×3(21/2)

150300300600

150150150150

13233343

11/2 ×3(21/2)11/2 ×3(21/2)11/2 ×3(21/2)11/2 ×3(21/2)

150300300600

150150150150

12223242

11/2 ×3(21/2)11/2 ×3(21/2)11/2 ×3(21/2)11/2 ×3(21/2)

150300300600

150150150150

1.891.894.969.92

1.891.894.969.92

1.891.894.969.92

1.961.965.10

10.20

1.271.964.248.51

15.3025.5425.54

12.7221.2325.54

1.961.961.961.96

5.105.105.10

1.581.581.581.58

3.243.243.24

20.020.052.0

104.0

156.0260.5260.5

13.020.043.286.8

20.020.020.020.0

129.7216.5260.5

52.052.052.0

20.020.020.020.0

52.052.052.0

20.020.0

52.052.052.0

16.116.116.116.1

–29˚Cto

232˚C

233˚Cto

427˚C

428˚Cto

538˚C

–30˚Cto

–59˚C

–60˚Cto

–100˚C

–101˚Cto

–268˚C

33.033.033.0

16.116.116.116.1

33.033.033.0

16.116.1

33.033.033.0

13.020.043.286.8

129.7216.5260.5

5.620.028.858.8

86.8144.8241.1

35.871.3

107.2178.5263.6

15.130.2

45.775.9

126.5

1.581.581.581.58

3.243.243.24

1.581.58

3.243.243.24

1.961.961.961.96

5.105.105.10

1.961.96

5.105.105.10

1.271.964.248.51

12.7221.2325.54

0.551.962.825.68

8.5114.2023.64

3.516.99

10.5117.5125.85

1.482.96

4.487.44

12.41

1.891.891.891.89

1.891.891.891.89

1.891.891.891.89

1.581.581.581.58

1.581.581.581.58

1.581.581.581.58

19.319.350.6

101.2

19.319.350.6

101.2

19.319.350.6

101.2

19.319.319.319.3

16.116.116.116.1

19.319.319.319.3

16.116.116.116.1

19.319.319.319.3

16.116.116.116.1

Dimensions and Weights G Orifice




E P


JNOJNBJNO-H

12, 13, 14, 15, 16, 22, 23, 24, 25, 26

32, 33, 34, 35, 36, 37

42, 43, 44, 45, 46, 47

11/2 ×3(21/2)

11/2 ×3(21/2)

11/2 ×3(21/2)

55, 56, 57

55, 56, 57, 65, 66, 67

11/2 ×3

2×3

124.0

124.0

124.0

124.0

155.5

120.5

152.5

152.5

165.0

171.5

495

495

495

565

590

540

540

540

660

685

22 (20)

26 (24)

26 (24)

37

45

41

43

43

51

70JNOJNB

Approx.Weight

(kg)TypeA※

23


G Orifice3.245 cm2



24 25


H Orifice5.064 cm2






Valve Style


FlangesRaised Face


(MPaG)


tem-pera-ture


Inlet–268˚C

to–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

–268˚Cto

–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

Inlet Outlet

Inlet×

Outlet

JNOJNBJNO-H

JNOJNB

15253545

5565

11/2 ×311/2 ×3

2×32×3

2×32×3

150300300600

150150150150

9001500

150300

JNOJNBJNO-H

JNOJNB

16263646

5666

11/2 ×311/2 ×3

2×32×3

2×32×3

150300300600

150150150150

9001500

150300

JNOJNBJNO-H

JNOJNB

3747

5767

2×32×3

2×32×3

300600

150150

150300

150300

14243444

11/2 ×311/2 ×3

2×32×3

150300300600

150150150150

13233343

11/2 ×311/2 ×3

2×32×3

150300300600

150150150150

12223242

11/2 ×311/2 ×3

2×32×3

150300300600

150150150150

1.891.894.969.92

1.891.894.969.92

1.891.894.969.92

1.961.965.10

10.20

1.271.964.248.51

15.3018.96

12.7218.96

1.961.961.961.96

1.965.10

1.581.581.581.58

1.582.86

20.020.052.0

104.0

156.0193.3

13.020.043.286.8

20.020.020.020.0

129.7193.3

20.052.0

20.020.020.020.0

20.052.0

20.020.0

20.052.0

16.116.116.116.1

–29˚Cto

232˚C

233˚Cto

427˚C

428˚Cto

538˚C

–30˚Cto

–59˚C

–60˚Cto

–100˚C

–101˚Cto

–268˚C

16.129.1

16.116.116.116.1

16.129.1

16.116.1

16.129.1

13.020.043.286.8

129.7193.3

5.620.028.858.8

86.8144.8

35.871.3

107.2178.5

15.130.2

45.775.9

1.581.581.581.58

1.582.86

1.591.59

1.582.86

1.961.961.961.96

1.965.10

1.961.96

1.905.10

1.271.964.248.51

12.7218.96

0.551.962.825.68

8.5114.20

3.516.99

10.5117.51

1.482.96

4.487.44

1.891.891.891.89

1.891.891.891.89

1.891.891.891.89

1.581.581.581.58

1.581.581.581.58

1.581.581.581.58

19.319.350.6

101.2

19.319.350.6

101.2

19.319.350.6

101.2

19.319.319.319.3

16.116.116.116.1

19.319.319.319.3

16.116.116.116.1

19.319.319.319.3

16.116.116.116.1

Dimensions and Weights H Orifice




E P


JNOJNBJNO-H

12, 13, 14, 15, 16, 22, 23, 24, 25, 26

32, 33, 34, 35, 36, 37,47

42, 43, 44, 45, 46

11/2 ×3

2×3

55, 56, 57, 65, 66, 67 2×3

130.5

130.5

154.0

124.0

124.0

162.0

510

510

625

555

555

720

23

28

50

41

43

2×3 154.0 162.0 570 620 3643

57JNOJNB

Approx.Weight

(kg)TypeA※

25


H Orifice5.064 cm2


Pressure-Temperature Limit Chart - ASME (ANSI) cl 900, cl 1500

26 27


J Orifice8.303 cm2






Valve Style


FlangesRaised Face


(MPaG)


tem-pera-ture


Inlet–268˚C

to–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO JNB

–268˚Cto

–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

Inlet Outlet

Inlet×

Outlet

JNOJNBJNO-H

JNOJNB

15253545

5565

2×32×3

3(21/2)×43(21/2)×4

3×43×4

150300300600

150150150150

9001500

150300

JNOJNBJNO-H

JNOJNB

16263646

5666

2×32×3

3(21/2)×43(21/2)×4

3×43×4

150300300600

150150150150

9001500

150300

JNOJNBJNO-H

JNOJNB

3747

5767

3(21/2)×43(21/2)×4

3(21/2)×4

3×4

300600

150150

9001500

150300

14243444

2×32×3

3(21/2)×4

3(21/2)×4

150300300600

150150150150

13233343

2×32×3

3(21/2)×4

3(21/2)×4

150300300600

150150150150

12223242

2×32×3

3(21/2)×4

3(21/2)×4

150300300600

150150150150

1.891.893.454.30

1.891.893.454.30

1.891.894.969.92

1.961.965.10

10.20

1.271.964.248.51

15.3018.61

12.7218.61

1.961.961.961.96

1.964.13

1.581.581.581.58

1.581.58

20.020.052.0

104.1

156.0189.8

13.020.043.286.8

20.020.020.020.0

129.7189.8

20.042.1

20.020.020.020.0

20.042.1

20.020.0

20.042.1

16.116.116.116.1

–29˚Cto

232˚C

233˚Cto

427˚C

428˚Cto

538˚C

–30˚Cto

–59˚C

–60˚Cto

–100˚C

–101˚Cto

–268˚C

16.116.1

16.116.116.116.1

16.116.1

16.116.1

16.116.1

13.020.043.286.8

129.7189.8

5.620.028.858.8

86.8144.8

35.871.3

107.2178.5

15.130.2

45.775.9

1.581.581.581.58

1.581.58

1.581.58

1.581.58

1.961.961.961.96

1.964.13

1.961.96

1.964.13

1.271.964.248.51

12.7218.61

0.551.962.825.68

8.5114.20

3.516.99

10.5117.51

1.482.96

4.487.44

1.891.891.891.89

1.891.891.891.89

1.891.891.891.89

1.581.581.581.58

1.581.581.581.58

1.581.581.581.58

19.319.335.143.9

19.319.335.143.9

19.319.350.6

101.2

19.319.319.319.3

16.116.116.116.1

19.319.319.319.3

16.116.116.116.1

19.319.319.319.3

16.116.116.116.1

Dimensions and Weights J Orifice




E P


JNOJNBJNO-H

12, 13, 14, 15, 16, 22, 23, 24, 25, 26

32, 33, 34, 35, 36, 37,47

42, 43, 44, 45, 46

2×3

3×4

136.5

184.0

124.0

181.0

495

615

540

660

24

40

41

52

3×4 184.0 181.0 700 740 5552

55, 56, 57, 65, 66, 67 3×4 184.0 181.0 730 825 7068JNOJNB

Approx.Weight

(kg)TypeA※

27


J Orifice8.303 cm2



28 29


K Orifice11.858 cm2






Valve Style


FlangesRaised Face


(MPaG)


tem-pera-ture


Inlet–268˚C

to–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

–268˚Cto

–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

Inlet Outlet

Inlet×

Outlet

JNOJNBJNO-H

JNOJNB

15253545

5565

3×43×43×43×4

3×63×6

150300300600

150150150150

9001500

150300

JNOJNBJNO-H

JNOJNB

16263646

5666

3×43×43×43×4

3×63×6

150300300600

150150150150

9001500

150300

JNOJNBJNO-H

JNOJNB

3747

5767

3×43×4

3×63×6

300600

150150

9001500

150300

14243444

3×43×43×43×4

150300300600

150150150150

13233343

3×43×43×43×4

150300300600

150150150150

12223242

3×43×43×43×4

150300300600

150150150150

1.891.89 3.614.13

1.891.89 3.614.13

1.891.894.969.92

1.961.965.10

10.20

1.271.964.248.51

15.3015.30

12.7215.30

1.961.961.961.96

1.964.13

1.031.031.031.37

1.371.37

20.020.052.0

104.0

156.0156.0

13.020.043.286.8

20.020.020.020.0

129.7156.0

20.042.1

20.020.020.020.0

20.042.1

20.020.0

20.042.1

10.510.510.514.0

–29˚Cto

232˚C

233˚Cto

427˚C

428˚Cto

538˚C

–30˚Cto

–59˚C

–60˚Cto

–100˚C

–101˚Cto

–268˚C

14.014.0

10.510.510.514.0

14.014.0

10.514.0

14.014.0

13.020.043.286.8

129.7156.0

5.620.028.858.8

86.8144.8

35.871.3

107.2156.0

15.130.2

45.775.9

1.031.031.031.37

1.371.37

1.031.37

1.371.37

1.961.961.961.96

1.964.13

1.961.96

1.964.13

1.271.964.248.51

12.7215.30

0.55 1.962.82 5.68

8.5114.20

3.516.99

10.5115.30

1.482.96

4.487.44

1.891.891.891.89

1.891.891.891.89

1.891.891.891.89

1.031.031.031.37

1.031.031.031.37

1.031.031.031.37

19.319.336.942.1

19.319.336.942.1

19.319.350.6

102.1

19.319.319.319.3

10.510.510.514.0

19.319.319.319.3

10.510.510.514.0

19.319.319.319.3

10.510.510.514.0

Dimensions and Weights K Orifice




E P


JNOJNBJNO-H

12, 13, 14, 15, 16, 22, 23, 24, 25, 26

32, 33, 34, 35, 36, 37,47

42, 43, 44, 45, 46

3×4

3×4

155.5

155.5

162.0

162.0

670

670

715

715

52

55

52

52

3×4 184.0 181.0 745 790 7052

55, 56, 57 3×6 198.5 216.0 850 985 7068

65, 66, 67 3×6 197.0 216.0 850 985 7068JNOJNB

Approx.Weight

(kg)TypeA※

29


K Orifice11.858 cm2



30 31



L Orifice18.406 cm2





Valve Style


FlangesRaised Face


(MPaG)


tem-pera-ture


Inlet–268˚C

to–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

–268˚Cto

–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

Inlet Outlet

Inlet×

Outlet

JNOJNBJNO-H

JNOJNB

15253545

55

3×43×44×64×6

4×6

150300300600

150150150150

900 150

JNOJNBJNO-H

JNOJNB

16263646

5666

3×43×44×64×6

4×64×6

150300300600

150150150150

9001500

150300

JNOJNBJNO-H

JNOJNB

3747

5767

4×64×6

4×64×6

300600

150150

9001500

150300

14243444

3×43×44×64×6

150300300600

150150150150

13233343

3×43×44×64×6

150300300600

150150150150

12223242

3×43×44×64×6

150300300600

150150150150

1.891.893.693.69

1.891.893.693.69

1.891.89 4.96 6.89

1.961.965.106.89

1.271.964.246.89

10.34 10.34

1.961.961.961.96

1.96

0.690.691.171.17

1.17

20.020.052.070.3

105.4

13.020.043.270.3

20.020.020.020.0

105.4 20.0

20.020.020.020.0

20.020.0

20.020.0

20.020.0

7.0 7.0

11.911.9

–29˚Cto

232˚C

233˚Cto

427˚C

428˚Cto

538˚C

–30˚Cto

–59˚C

–60˚Cto

–100˚C

–101˚Cto

–268˚C

11.9

7.0 7.0

11.911.9

11.911.9

11.911.9

11.911.9

13.020.043.270.3

105.4105.4

5.620.028.858.0

86.8105.4

35.870.3

105.4105.4

15.130.2

45.775.9

0.690.691.171.17

1.171.17

1.171.17

1.171.17

1.961.961.961.96

1.961.96

1.961.96

1.961.96

1.271.964.246.89

10.3410.34

0.551.962.825.69

8.5110.34

3.516.89

10.3410.34

1.482.96

4.487.44

1.891.89 1.891.89

1.891.89 1.891.89

1.891.89 1.891.89

0.680.681.171.17

0.680.681.171.17

0.680.681.171.17

19.319.337.637.6

19.319.337.637.6

19.319.350.670.3

19.3 19.3 19.3 19.3

7.0 7.0

11.911.9

19.3 19.3 19.3 19.3

7.0 7.0

11.911.9

19.3 19.3 19.3 19.3

7.0 7.0

11.911.9

Dimensions and Weights L Orifice




E P


JNOJNBJNO-H

12, 13, 14, 15, 16, 22, 23, 24, 25, 26

32, 33, 34, 35, 36, 37

42, 43, 44, 45, 46, 47

3×4

4×6

4×6

55, 56, 57, 66, 67 4×6

155.5

179.5

179.5

197.0

165.0

181.0

203.0

222.0

745

775

790

870

785

815

835

1005

65

81

97

110

49

55

58

74JNOJNB

Approx.Weight

(kg)TypeA※

31

Pressure-Temperature Limit Chart

L Orifice18.406 cm2


32 33



M Orifice23.225 cm2





Valve Style


FlangesRaised Face


(MPaG)


tem-pera-ture


Inlet–268˚C

to–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

–268˚Cto

–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

Inlet Outlet

Inlet×

Outlet

JNOJNBJNO-H

15253545

4×64×64×64×6

150300300600

150150150150

16263646

4×64×64×64×6

150300300600

150150150150

JNOJNB 56

3747

4×6

4×64×6

900 150

300600

150150

JNOJNBJNO-H

JNOJNB

57 4×6 900 150

14243444

4×64×64×64×6

150300300600

150150150150

13233343

4×64×64×64×6

150300300600

150150150150

12223242

4×64×64×64×6

150300300600

150150150150

1.891.89 3.614.13

1.891.89 3.614.13

1.891.894.967.58

1.96 1.965.10 7.58

1.27 1.96 4.24 7.58

1.961.961.961.96

0.550.551.101.10

20.020.052.077.3

13.020.043.277.3

20.020.020.020.0

20.020.020.020.0

20.020.0

20.0

19.319.319.319.3

5.65.6

11.211.2

–29˚Cto

232˚C

233˚Cto

427˚C

428˚Cto

538˚C

–30˚Cto

–59˚C

–60˚Cto

–100˚C

–101˚Cto

–268˚C

5.65.6

11.211.2

11.211.2

20.0 11.2

11.3

5.65.6

11.211.2

13.020.043.277.3

5.620.028.858.0

35.870.3

15.130.2

77.3 77.3

77.3 45.7

0.550.551.101.10

1.10

1.101.10

1.961.961.961.96

1.96

1.961.96

1.28 1.96 4.24 7.58

7.58

0.55 1.96 2.82 5.68

7.58

3.516.89

1.482.96

1.101.967.58 4.48

1.961.961.961.96

1.891.891.891.89

1.891.891.891.89

0.550.551.101.10

0.550.551.101.10

0.550.551.101.10

19.319.336.942.1

19.319.336.942.1

19.319.350.677.3

19.319.319.319.3

5.65.6

11.211.2

19.319.319.319.3

5.65.6

11.211.2

Dimensions and Weights M Orifice




E P


JNOJNBJNO-H

12, 13, 14, 15, 16, 22, 23, 24, 25, 26

32, 33, 34, 35, 36, 37

42, 43, 44, 45, 46, 47

4×6

4×6

4×6

56, 57 4×6

178.0

178.0

178.0

197.0

184.0

184.0

203.0

222.0

750

805

875

945

795

850

915

1080

81

95

113

120

55

55

59

65JNOJNB

Approx.Weight

(kg)TypeA※

33


M Orifice23.225 cm2


34 35



N Orifice27.999 cm2





Valve Style


FlangesRaised Face


(MPaG)


tem-pera-ture


Inlet–268˚C

to–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

–268˚Cto

–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

Inlet Outlet

Inlet×

Outlet

JNOJNBJNO-H

15253545

4×64×64×64×6

150300300600

150150150150

16263646

4×64×64×64×6

150300300600

150150150150

3747

4×64×6

300600

150150

JNOJNB

14243444

4×64×64×64×6

150300300600

150150150150

13233343

4×64×64×64×6

150300300600

150150150150

12223242

4×64×64×64×6

150300300600

150150150150

1.891.893.103.44

1.891.893.103.44

1.891.894.966.89

1.96 1.965.10 6.89

1.27 1.96 4.24 6.89

1.961.961.961.96

0.550.551.101.10

20.020.052.070.3

13.020.043.270.3

20.020.020.020.0

20.020.020.020.0

19.319.319.319.3

5.65.6

11.211.2

–29˚Cto

232˚C

233˚Cto

427˚C

428˚Cto

538˚C

–30˚Cto

–59˚C

–60˚Cto

–100˚C

–101˚Cto

–268˚C

5.65.6

11.211.2

20.020.0

11.211.2

5.65.6

11.211.2

13.020.043.270.3

5.620.028.858.0

35.870.3

15.130.2

0.550.551.101.10

1.101.10

1.961.961.961.96

1.961.96

1.271.964.246.89

0.55 1.96 2.82 5.68

3.516.89

1.482.96

1.891.891.891.89

1.891.891.891.89

1.891.891.891.89

0.550.551.101.10

0.550.551.101.10

0.550.551.101.10

19.319.331.635.1

19.319.331.635.1

19.319.350.670.3

19.319.319.319.3

5.65.6

11.211.2

19.319.319.319.3

5.65.6

11.211.2

Dimensions and Weights N Orifice




E P


JNOJNBJNO-H

12, 13, 14, 15, 16, 22, 23, 24, 25, 26

32, 33, 34, 35, 36, 37

42, 43, 44, 45, 46, 47

4×6

4×6

4×6

197.0

197.0

197.0

209.5

209.5

209.5

905

905

905

950

950

950

111

111

119

55

55

59

Approx.Weight

(kg)TypeA※

35


N Orifice27.999 cm2


36 37



P Orifice41.161 cm2





Valve Style


FlangesRaised Face


(MPaG)


tem-pera-ture


Inlet–268˚C

to–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

–268˚Cto

–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

Inlet Outlet

Inlet×

Outlet

JNOJNBJNO-H

15253545

4×64×64×64×6

150300300600

150150150150

16263646

4×64×64×64×6

150300300600

150150150150

3747

4×64×6

300600

150150

JNOJNB

14243444

4×64×64×64×6

150300300600

150150150150

13233343

4×64×64×64×6

150300300600

150150150150

12223242

4×64×64×64×6

150300300600

150150150150

1.201.202.063.31

1.201.202.063.31

1.891.893.626.89

1.961.963.62 6.89

1.271.963.626.89

1.961.961.961.96

0.550.551.131.13

20.020.036.970.3

13.020.036.970.3

20.020.020.020.0

20.020.020.020.0

19.319.319.319.3

5.65.6

10.610.6

–29˚Cto

232˚C

233˚Cto

427˚C

428˚Cto

538˚C

–30˚Cto

–59˚C

–60˚Cto

–100˚C

–101˚Cto

–268˚C

5.65.6

10.610.6

20.020.0

10.510.5

5.65.6

10.510.5

13.020.036.970.3

5.620.028.858.0

35.870.3

15.130.3

0.550.551.131.13

1.031.03

1.961.961.961.96

1.961.96

1.271.963.626.89

0.551.962.825.69

3.516.89

1.482.96

1.891.891.891.89

1.891.891.891.89

1.891.891.891.89

0.550.551.031.03

0.550.551.031.03

0.550.551.031.03

12.312.321.133.8

12.312.321.133.8

19.319.336.970.3

19.319.319.319.3

5.65.6

10.510.5

19.319.319.319.3

5.65.6

10.510.5

Dimensions and Weights P Orifice




E P


JNOJNBJNO-H

12, 13, 14, 15, 16, 22, 23, 24, 25, 26

32, 33, 34, 35, 36, 37

42, 43, 44, 45, 46, 47

4×6

4×6

4×6

181.0

225.5

225.5

228.5

254.0

254.0

935

980

1030

1050

1095

1145

115

122

171

52

58

58

Approx.Weight

(kg)TypeA※

37


P Orifice41.161 cm2


38 39



Q Orifice71.290 cm2





Valve Style


FlangesRaised Face


(MPaG)


tem-pera-ture


Inlet–268˚C

to–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

–268˚Cto

–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

Inlet Outlet

Inlet×

Outlet

JNOJNBJNO-H

15253545

6×86×86×86×8

150300300600

150150150150

16263646

6×86×86×86×8

150300300600

150150150150

3747

6×86×8

300600

150150

JNOJNB

14243444

6×86×86×86×8

150300300600

150150150150

13233343

6×86×86×86×8

150300300600

150150150150

12223242

6×86×86×86×8

150300300600

150150150150

1.131.13 1.722.06

1.131.131.722.06

1.131.132.064.13

1.131.132.064.13

1.131.132.064.13

0.790.790.790.79

0.480.480.790.79

11.611.621.042.1

11.611.621.042.1

8.08.08.08.0

8.08.08.08.0

8.08.08.08.0

4.94.98.08.0

–29˚Cto

232˚C

233˚Cto

427˚C

428˚Cto

538˚C

–30˚Cto

–59˚C

–60˚Cto

–100˚C

–101˚Cto

–268˚C

4.94.98.08.0

8.08.0

8.08.0

4.94.98.08.0

11.611.621.042.1

5.611.621.042.1

11.642.1

11.630.2

0.480.480.790.79

0.790.79

0.790.790.790.79

0.790.79

1.131.132.064.13

0.55 1.13 2.064.13

1.134.13

1.132.96

0.790.790.790.79

0.790.790.790.79

0.790.790.790.79

0.480.480.790.79

0.480.480.790.79

0.480.480.790.79

11.611.617.521.0

11.611.617.521.0

11.611.621.042.1

8.08.08.08.0

4.94.98.08.0

8.08.08.08.0

4.94.98.08.0

Dimensions and Weights Q Orifice




E P


JNOJNBJNO-H

12, 13, 14, 15, 16, 22, 23, 24, 25, 26

32, 33, 34, 35, 36, 37

42, 43, 44, 45, 46, 47

6×8

6×8

6×8

239.5

239.5

239.5

241.5

241.5

241.5

1065

1065

1165

1180

1180

1280

220

220

260

57

57

68

Approx.Weight

(kg)TypeA※

39


Q Orifice71.290 cm2


40 41


R Orifice103.220 cm2





Valve Style


FlangesRaised Face


(MPaG)


tem-pera-ture


Inlet–268˚C

to–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

–268˚Cto

–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

Inlet Outlet

Inlet×

Outlet

JNOJNBJNO-H

15253545

6×86×86×106×10

150300300600

150150150150

16263646

6×86×86×106×10

150300300600

150150150150

3747

6×86×10

300600

150150

JNOJNB

14243444

6×86×8

6×106×10

150300300600

150150150150

13233343

6×86×86×106×10

150300300600

150150150150

12223242

6×86×86×106×10

150300300600

150150150150

0.370.37 1.031.37

0.370.371.031.37

0.680.68 1.582.06

0.680.68 1.582.06

0.680.68 1.582.06

0.41 0.410.680.68

0.41 0.410.680.68

7.07.0

16.121.0

7.07.0

16.121.0

4.24.27.07.0

4.24.27.07.0

4.24.27.07.0

4.24.27.07.0

–29˚Cto

232˚C

233˚Cto

427˚C

428˚Cto

538˚C

–30˚Cto

–59˚C

–60˚Cto

–100˚C

–101˚Cto

–268˚C

4.24.27.07.0

4.27.0

4.27.0

4.24.27.07.0

7.07.0

16.121.0

7.07.0

16.121.0

7.021.0

7.021.0

0.41 0.410.680.68

0.410.68

0.41 0.410.680.68

0.410.68

0.680.68 1.582.06

0.550.68 1.582.06

0.692.06

0.682.06

0.41 0.410.680.68

0.41 0.410.680.68

0.41 0.410.680.68

0.41 0.410.680.68

0.41 0.410.680.68

0.41 0.410.680.68

3.83.8

10.514.0

3.83.8

10.514.0

7.07.0

16.121.0

4.24.27.07.0

4.24.27.07.0

4.24.27.07.0

4.24.27.07.0

Dimensions and Weights R Orifice




E P


JNOJNBJNO-H

12, 13, 14, 15, 16, 22, 23, 24, 25, 26, 37

32, 33, 34, 35, 36

42, 43, 44, 45, 46, 47

6×8

6×10

6×10

239.5

239.5

239.5

241.5

266.5

266.5

1205

1205

1205

1320

1320

1320

231

250

260

58

68

68

Approx.Weight

(kg)TypeA※

41


R Orifice103.220 cm2


0.5 1.0 1.5 2.52.0

42 43



T Orifice167.740 cm2





Valve Style


FlangesRaised Face


(MPaG)


tem-pera-ture


Inlet–268˚C

to–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

–268˚Cto

–101˚C

–59˚Cto

–30˚C

–100˚Cto

–60˚C

–29˚Cto

38˚C* 232˚C 427˚C 538˚C JNO

JNB

Inlet Outlet

Inlet×

Outlet

JNOJNBJNO-H

15253545

8×108×108×108×10

150300300600

150150150150

16263646

8×108×108×108×10

150300300600

150150150150

37 8×10 300 150

JNOJNB

142434

8×108×108×10

150300300

150150150

132333

8×108×108×10

150300300

150150150

122232

8×108×108×10

150300300

150150150

0.340.340.44

0.340.340.44

0.440.440.82

0.440.44 0.822.06

0.440.440.822.06

0.20 0.200.410.68

0.20 0.200.410.68

4.54.58.4

21.0

4.54.58.4

21.0

2.1 2.14.2 7.0

2.1 2.14.2 7.0

2.12.14.2

2.12.14.24.2

–29˚Cto

232˚C

233˚Cto

427˚C

428˚Cto

538˚C

–30˚Cto

–59˚C

–60˚Cto

–100˚C

–101˚Cto

–268˚C

2.12.14.24.2

7.0 7.0

2.12.14.2

4.54.58.4

21.0

4.54.58.4

21.0

21.0 15.1

0.20 0.200.410.68

0.68

0.20 0.200.410.68

0.68

0.440.440.822.06

0.440.440.822.06

2.06 1.48

0.200.200.41

0.200.200.41

0.200.200.41

0.200.200.41

0.200.200.41

0.200.200.41

3.53.54.5

3.53.54.5

4.54.58.4

2.12.14.2

2.12.14.2

2.12.14.2

2.12.14.2

Dimensions and Weights T Orifice




E P


JNOJNBJNO-H

12, 13, 14, 15, 16, 22, 23, 24, 25, 26

32, 33, 34, 35, 36, 37

45, 46

8×10

8×108×10

276.0

276.0

276.0

279.5

279.5

279.5

1410

1410

1410

1495

1495

1495

350

380

390

65

65

65

Approx.Weight

(kg)TypeA※

43


T Orifice167.740 cm2


0.5 1.0 1.5 2.52.0

44 45

Saturated steam capacities

Kilograms per Hour (90% Rating) at Set Pressure plus 10% overpressureMeet Requirements of ASME Boiler and Pressure Vessel Code, Section VIII.

(Unit : kg/h)

NOTE: For superheated steam multiply above capacities by correction factor Ksh.

SetPressure

(kg/cm2G)

ORIFICE LETTER AND EFFECTIVE AREA (cm2)

D0.709

1.01.52.02.5

3.03.54.04.55.0

5.56.06.57.07.5

8.08.59.09.5

10.0

11.012.013.014.015.0

16.017.018.019.020.0

22.024.026.028.030.0

32.034.036.038.040.0

42.044.046.048.050.0

55.060.065.070.075.0

80.085.090.095.0

100.0

7595

114134

154173193212232

274309344379413

430484539594648

703792882971

1060

10991239137915191658

18012030225924882717

25742901322835553882

39944501500955166023

50415681632169617602

60766848762083929163

893510069112041233913474

1544617431193962136023325

2240325248280943094033785

3640941033456585028354907

252271291310330

448483518553588

703758812867921

11501239132914181507

17981938207722172357

29463175340436323861

42094536486351905517

65317038754580538560

824288829523

1016310803

993510707114791225113023

1460915744168791801419149

2529027254292193118333148

3663139476423224516848013

5953264157687827340678031

349369389408428

623658692727762

9761031108511401195

15971686177518651954

24962636277629163055

40904319454847775006

58446171649868257152

90689575

100821059011097

1144412084127241336514005

1379414566153381611016882

2028421419225542368924824

3511337077390424100742971

5085953705565505939662242

82656872809190596530

101155

467506545584624

832902971

10411111

13041413152316321741

21332312249026692848

33353614389441734452

54635921637968377294

7806846091149768

10422

1211213126141411515616171

1528616566178471912720408

1842619969215132305724600

2709429363316333390336173

4690050830547595868862617

6793373624793168500790698

110404119653128903138152147402

663702741780819

11811250132013901459

18501960206921782288

30263205338435633741

47325011529155705850

77528210866891259583

1107611730123841303813692

1718518200192152023021244

2168922969242502553126811

2614427688292313077532319

3844340713429834525247522

6654770476744057833482264

96390102081107772113463119155

156651165901175150184399193649

898976

105411331211

15991738187820172157

25062725294331623380

40994456481451715529

64086967752680858644

1049911414123301324514161

1500016308176161892420232

2327425303273332936231392

2937231934344953705639617

3540638493415814466847756

5206256602611426568170221

9012297981

105839113697121556

12891368144615241603

22962436257527152854

35993818403642554473

58866244660169587316

92039761

103201087911438

1507615992169071782318738

2154022848241562546426772

3342135451374803951041539

4217944740473014986252424

5084353930570186010563192

7476179301838408838092920

129414137273145131152990160848

16811759183819161994

29943133327234123551

46924910512953485566

76738031838887469103

1199712556131141367314232

1965420569214852240023316

2808029388306963200433312

4356945598476274965751686

5498557546601076266965230

6628069367724557554278629

97460101999106539111079115619

168707

21902386258227782973

39004249459749465295

61136659702577528298

999710890117841267813571

1562917026184231982021218

2560527893301823247134760

3658239853431234639349663

56760618346690771918

7163378036844399084397246

3634894066

101785109503

126968139317149667161016

31693365356137573953

56435992634166897038

884593919938

1048411031

1446515359162521714618039

2261524012254092680628203

3704839337416264391546204

5293356203594736274366013

E1.264

135169204239

F1.980

211266320375

G3.245

346435524614

H5.064

541680820960

J8.303

886111513441573

K11.858

1266159319202247

L18.406

1964247229793486

M23.225

2479312037604400

N27.999

2989376045325304

P41.161

4395553066657800

Q71.290

76089573

1153713502

R103.22

11020138661671119557

T167.74

17910225342715931784

45

Air capacities

Normal cubic meters per minute at 15.6˚C plus 10% overpressureMeet Requirements of ASME Boiler and Pressure Vessel Code, Section VIII.

(Unit : Nm3/min)

SetPressure

(kg/cm2G)


D0.709

1.01.52.02.5

3.03.54.04.55.0

5.56.06.57.07.5

8.08.59.09.5

10.0

11.012.013.014.015.0

16.017.018.019.020.0

22.024.026.028.030.0

32.034.036.038.040.0

42.044.046.048.050.0

55.060.065.070.075.0

80.085.090.095.0

100.0

1.6862.1212.5562.992

3.4273.8624.2984.7335.168

6.1026.8777.6538.4289.203

9.56410.77911.99413.20914.424

15.64117.62819.61521.60223.588

24.45327.56030.66633.77236.878

40.06145.14950.23855.32760.415

57.23764.50771.77779.04886.318

88.806100.087111.360122.640133.920

112.076126.313140.540154.780169.020

135.099152.259169.410186.580203.740

198.652223.885249.110274.350299.580

343.876387.555431.230474.910518.590

498.087561.354624.620687.880751.150

809.483912.305

1015.1201117.9401220.760

1323.5901426.4101529.2301632.0501734.870

9.97810.75311.52912.30413.079

15.63816.85318.06819.28320.498

25.57527.56229.54931.53633.522

39.98443.09046.19749.30352.409

65.50470.59375.68180.77085.858

93.588100.859108.129115.399122.670

145.200156.480167.760179.040190.320

183.250197.490211.720225.960240.200

220.900238.060255.220272.380289.540

324.810350.050375.280400.510425.750

562.270605.950649.630693.310736.990

814.420877.690940.950

1004.2201067.490

1837.6901940.5102043.3302146.1602248.980

13.85414.62915.40416.18016.955

21.71322.92824.14325.35726.572

35.50937.49639.48341.47043.456

55.51558.62161.72764.83367.940

90.94796.036

101.124106.213111.302

129.940137.210144.481151.751159.021

201.600212.890224.170235.450246.730

254.430286.670282.910297.140311.038

306.700323.860341.020358.180375.340

450.980476.210501.440526.680551.910

780.670824.350868.020911.700955.380

1130.7601194.0201257.2901320.5601383.830

2454.6202660.2602865.9003071.5503277.190

18.50520.05621.60623.15624.707

29.00231.43233.86236.29138.721

47.43051.40455.37759.35163.325

74.15280.36486.57792.78999.001

121.479131.656141.833152.011162.188

173.562188.102202.643217.184231.724

269.290291.850314.410336.970359.530

339.850368.320396.790425.270453.740

409.660443.980478.300512.620546.940

602.380652.840703.310753.770804.240

1042.7401130.1001217.4601304.8201392.180

1510.3601636.9001763.4301889.9702016.500

3482.8303688.4703894.1204099.7604305.400

26.25727.80729.35830.90832.458

41.15143.58146.01148.44050.870

67.29871.27275.24579.21983.193

105.213111.426117.638123.850130.063

172.365182.542192.720202.897213.074

246.265260.806275.346289.887304.427

382.090404.650427.210449.770472.330

482.210510.680539.150567.630596.100

581.260615.590649.910684.230718.550

854.710905.170955.640

1006.1101056.570

1479.5401566.9001654.2501741.6101828.970

2143.0402269.5702396.1102522.6402649.180

35.55938.66041.76144.86147.962

55.73060.58965.44970.30875.168

91.14099.087

107.034114.982122.929

142.487154.912167.337179.761192.186

233.429253.783174.138284.492314.847

333.509362.590391.671420.753449.834

517.450562.570607.700652.820697.940

653.040709.990766.930823.880880.820

787.190855.830924.470993.110

1061.760

1157.5001258.4401359.3701460.3001561.230

2003.6902178.4102353.1302523.8402702.560

51.06354.16457.26460.36563.466

80.02784.88789.74694.60699.466

130.876138.823146.771154.718162.665

204.610217.035229.460241.884254.309

335.201355.556375.910396.265416.619

478.915507.996537.078566.159595.240

743.060788.180833.300878.420923.540

937.770994.710

1051.6501108.6001165.540

1130.4001199.0401267.6801336.3201404.960

1662.1601763.1001864.0301964.9602065.890

2877.2803052.0003226.7103401.4303576.150

66.56669.66772.76875.86978.969

104.325109.185114.044118.904123.763

170.612178.560186.507194.454202.401

266.734279.158291.583304.007316.432

436.974457.328477.683498.037518.392

624.321653.403682.484711.565740.646

968.6701013.7901058.9101104.0301149.150

1222.4901279.4301336.3801393.3201450.270

1473.6101542.2501610.8901679.5301748.170

2166.8302267.7602368.6902469.6202570.500

3750.870

86.72194.473

102.225109.977117.728

135.912148.061160.210172.359184.508

222.269242.138262.006281.874301.742

347.494378.555409.617440.678471.740

569.278620.164671.050721.930772.820

813.350886.053958.756

1031.4501104.160

1261.9501374.7601487.5601600.360

1592.6301734.9901877.3502019.7102162.070

1919.7802091.3802262.9802434.590

2822.8003075.2003327.5003579.800

125.480133.232140.984148.736156.488

196.656208.805220.954233.103245.252

321.610341.478361.346381.214401.082

502.801533.863564.925595.986627.048

823.700874.590925.480976.360

1027.250

1176.8601249.5601322.2701394.9701467.670

5.6046.0396.4756.9107.345

7.7818.2168.6519.0879.522

10.39311.26312.13413.00513.876

14.74615.61716.48817.35918.229

19.97121.71223.45425.19526.936

28.67830.41932.16133.90235.644

37.38539.12740.86842.60944.351

48.70553.05857.41261.76566.119

70.47374.82679.18083.53387.887

E1.264

3.0023.7774.5525.327

F1.980

4.7045.9197.1348.349

G3.245

7.6949.681

11.66713.654

H5.064

12.02915.13518.24121.347

J8.303

19.70624.79529.88434.972

K11.858

28.15535.42642.69649.966

L18.406

43.68554.96566.24677.526

M23.225

55.13269.36883.60497.840

N27.999

66.45783.617

100.778117.938

P41.161

97.720122.953148.186173.419

Q71.290

169.158212.837256.517300.196

R103.22

245.017308.284371.552434.819

T167.74

398.198501.019603.841706.662

46 47

Water capacities (JLT liquid trim only)

Liters per Minute at Set Pressure plus 10% overpressure

(Unit :ℓ/min)

NOTE: Where back pressure exists, use instead of set pressure, the difference between set pressure and the back pressure.

SetPressure

(kg/cm2G)


D0.709

1.01.52.02.5

3.03.54.04.55.0

5.56.06.57.07.5

8.08.59.09.5

10.0

11.012.013.014.015.0

16.017.018.019.020.0

22.024.026.028.030.0

32.034.036.038.040.0

42.044.046.048.050.0

55.060.065.070.075.0

80.085.090.095.0

100.0

46566573

80869298

103

142154165175184

223241258274289

367396423449473

572618661701739

9391014108411501212

13411448154816421731

20812248240325492687

26262837303332173391

31663420365638784088

46555028537557026010

8063870993119875

10410

1167512610134811429915072

1897320493219082323724494

108113118122126

193202210218226

303316329342354

496519540560580

775810843874905

12711328138214341484

18161896197420482120

28182944306431803291

35563715386640124153

42884478466148375007

63036584685371117361

1091811403118691231712749

1580816511171851783418460

2568926831279272898129999

130134138142146

233240247254261

365376387398408

599617635653670

935964992

10191045

15331580162616711714

21902257232323862448

33993504360537043801

42894421455046744796

51715330548556355782

76027836806382848500

1316713573139661434914722

1906519652202222077621315

3098231936328623376234639

153160166173179

273285297308319

428447466483500

702734764792820

10961145119212371280

17981878195520282100

25682682279228972999

39864163433344974655

50305253546856745874

60646333659268417081

891593119691

1005710410

1544016127167851741918030

2235623350243032522126106

3633037946394954098642425

185190196201207

330340350359369

517533548563578

847873899923947

13221363140314411478

21682235230023632424

30973192328533753463

48074955509952395375

60666253643466116782

73137538775779708177

1075111082114041171612021

1862219195197512029220820

2696227792285982938130145

4381645164464744774748988

217226236244253

387404420436452

606633659684708

9931038108011211160

15511620168617491811

25432656276428692969

36323793394840974241

56375888612863606583

71137430773380258307

8576895793239675

10014

1260713168137061422314722

2183622807237382463425499

261269277285292

466481495508522

731753775797817

11981235127113061340

18701928198420382091

30673161325333423429

43804515464647734897

67997008721174097602

85798843910093499592

1034310661109701127111564

1520515673161271656917000

2633527146279332869829444

300307314320327

534547559571583

837857876895914

13731405143714681498

21432193224222912338

35133596367737563834

50185136525253655475

77897973815283278499

989210060102861050710724

1184912128124011266712929

1742017830182301862219006

30171

343358373387400

612639665690714

9581001104210811119

15711641170817721835

24522561266627662863

40214200437145364695

57425998624364786706

891493109690

10056

1124811748122271268913134

13560141631474115297

19934208212167122489

414426439451463

738761783804825

11561192122612601293

18951953201020652119

29573048313732233306

48494999514352845422

69267139734675477743

E1.264

82101116130

F1.980

129158182204

G3.245

211259299335

H5.064

330405467522

J8.303

542664766857

K11.858

774948

10951224

L18.406

1201147216991900

M23.225

1516185721442398

N27.999

1828223925852891

P41.161

2687329238014250

Q71.290

4655570165837361

R103.22

674082559532

10657

T167.74

10954134151549117319

47

As system pressure approaches the valve set pressure, the differential force tending to hold the seats in contact is diminished. Consequently, to obtain an acceptable degree of tightness capability, the valve must be designed and built with a high level of quality.

MOTOYAMA pressure relief valves are carefully engineered and manufactures ti provide those features essential for good valve performance and continuous long term protection. The inherent high degree of seat tightness found in MOTOYAMA pressure relief valves is possible due to the following design features.

1. Positive alignment of the seats through generous guiding and ball joints.

2. Minimum distortion as a result of full nozzle construction and thermally balanced disc design.

3. Excellent flatness and surface finish of the seating surfaces by precision machining and custom lapping.

Cleanliness of the system and proper installation of the valve are also essential for good seat tightness.

DefinitionAmbiguous terms such as "bubble tight", "drop tight", "zero leakage" and "commercial tightness" have been used in the past. Since these terms were used without uniform definition, they lacked true practical meaning.

Now with the adoption of a standard that defines the terminology used to describe pressure relief devices (ASME Performance Test Code PTC-25.3), and the adoption of a standard describing a method of determining seat tightness of relief valves (API Standard 527), there should exist a degree of uniformity throughout the industry.

"Commercial" Seat Tightness Standard(API Standard 527)The following API Standard of "commercial" tightness has been adopted by industry and users in order to clarify testing methods and tightness standards for the sake of uniformity. It applies to pressure relief valves.

The API Standard is as follows:Scope:This standard describes a method of determining seat tightness of pressure relief valves as covered in API Standard 527 Seat Tightness of Pressure Relief Valves. The maximum acceptable leakage rates are defined for commercial pressure relief valves with, metal-to-metal and soft neats for set pressures up to 6000 psig (414 barg). If greater tightness is required it can be supplied but must be specified on the purchase order or inquiry. See page 6 for O-Ring soft seat pressure-temperature limits.

Test ApparatusA typical test arrangement for determining seat tightness for pressure relief valves is shown in Fig.1. Leakage measurement shall be made with use of a 5/16 in. (7.93 mm) OD tubing with 0.035 in. (.88 mm) wall. The tube end shall be cut square and smooth. It shall be parallel to and 1/2 in. (12.7 mm) below the surface of the water A clamp type seat leak apparatus is available from Crosby. Contact the factory.

ProcedureWith the valve mounted vertically, as shown in Fig. 1, the leakage rate in bubbles per minute shall be determined with pressure at the valve inlet held at 90 percent of the cold differential test pressure, except for valves set at 50 psig (3.44 barg) or below, in which case the pressure shall be held at 5 psig (.34 barg) below the cold differential test pressure. The test pressure shall be applied for a minimum of 1 minute for valves of inlet sizes through 2 in. (50.8 mm); 2 minutes for sizes 2-1/2, 3 and 4 in. (63.5, 76.2 and 101.6 mm); 5 minutes for sizes 6 in. and 8 in. (152.4 and 203.2 mm). Air at approximately atmospheric temperature shall be used as the pressure midium.

Tightness StandardThe leakage rate in bubbles per minute shall not exceed the values indicated in Table 1 below. For soft seated valves there shall be no leakage for one minute (zero bubbles for one minute)

Table 1

Maximum Seat Leakage RateMetal Seated Pressure Relief Valves

MOTOYAMA Seat Tightness Standard-Water Service Valves(Style JLT)MOTOYAMA pressure relief valves are checked for seat tightness by a quantitative seat leakage test. All of the test fluid passing through an assembled valve is collected and measured under the following test conditions:

1. The inlet pressure is adjusted to a test pressure which is 90% of the "Cold Differential Test Pressure". Valves set below 50 psig (3.44 barg) are tested at 5 psig (.34 barg) below the cold differential test pressure.

2. The seat leak pressure is maintained for a period of not less than ten minutes.

Allowable Leak RateThe maximum allowable leakage rate should not exceed 10 cubic centimeters per hour per inch of diameter of nominal valve inlet size. For nominal valve sizes of 1 inch(25.4 mm) or less the leakage rate shall not exceed 10 cubic centimeters per hour. For soft seated valves there shall be no leakage for one minute.

Seat tightness-metal-to-metal seatsPressure relief valve seat tightnessMetal-to-Metal seat and soft seat

SetPressure

psig(barg)

15-1000(1.03-68.9)

1500 (103.4)2000 (137.9)2500 (172.4)3000 (206.8)4000 (275.8)5000 (344.8)6000 (413.7)

40

6080

100100100100100

0.60

0.901.201.501.501.501.501.50

0.017

0.0260.0340.0430.0430.0430.0430.043

20

3040506080

100100

0.30

0.450.600.750.901.201.501.50

0.0085

0.0130.0170.0210.0260.0340.0430.043

MAX.Bubbles

PerMinute

Effective Orifice Sizes0.307 in.2 and Smaller

Effective Orifice SizesLarger Than 0.307 in.2

ApproximateLeakage RatePer 24 Hours

StandardCubicFeet

StandardCubic

Meters

StandardCubicFeet

StandardCubic

Meters

MAX.Bubbles

PerMinute

ApproximateLeakage RatePer 24 Hours

48 49

Valve installation

StorageRelief valves are often on hand at the job site months before they are actually installed. Unless they are properly stored and protected their performance may be affected injuriously. Roughness in handling may damage flanges or cause misalignment of the valve parts. It is best to leave valves in shipment cases, store them in a dry place and give them a protective covering until they are to be used.

InstallationInlet Piping–The valve should be mounted vertically in an upright position either directly on a nozzle from the pressure vessel or on a short connection fitting that provides direct and unobstructed flow between the vessel and the valve Installing a pressure relief valve in other than this recommended position might adversely affect its operations. Where rounded or beveled approaches cannot be provided ahead of the valve it is recommended that one size large riser or fitting be used. A valve should never be installed on a fitting having a smaller inside diameter than the inlet connection of the valve. Compliance with the above recommendations will assure clean positive valve operation.Many valves are damaged when first placed in service because of failure to clean the connections properly when installed. Both the valve inlet and the vessel and/or line on which the valve is mounted must be thoroughly cleaned of all foreign material. The inlet connection bolts or studs should be drawn down evenly to avoid straining the valve body with possible distortion of the nozzle flange or base. The design and analysis of the inlet piping for a pressure relief station must include all of the valve operating forces (reaction forces) as well as the installation loads and forces.

Outlet Piping–Discharge piping should be simple and direct. Where possible a short vertical pipe discharging into the atmosphere is the most desirable type of outlet piping, and affords little trouble. (See illustration.) However, if this is impractical and the discharge must be piped to some definite place, the precautions listed below should be carefully considered.

All Valves:1. MOTOYAMA valves are designed with reinforced inlet necks to

minimize effects of discharge piping loads. However, regardless of this reinforcement, discharge piping should be designed for minimum load on the valve under all conditions of valve operation.

2. Expansion joints or large radius bends of proper design and cold spring should be provided to prevent excessive strain on the valve body under normal operating conditions. An excessive expansion load is a continuous source of trouble in improperly designed installations. (See illustration below.)

3. The piping should be anchored to prevent any swaying or vibration while the valve is discharging.

4. Where possible, open drains should be provided to prevent any accumulation of corrosive media in the valve body.

Conventional Valves5. When two or more valves are installed to discharge into a common

header the discharge pressure due to the opening of one (or more) valve(s) may affect the opening pressure of the remaining valves in the system.

5a Closed Top Valves With Bonnets NOT VENTEDThe discharge line pressure of these valves will increase the opening pressure by the amount (p.s.i.) of the discharge pressure.

5b Closed Top Valves With Bonnets VENTEDThe set pressure of the remaining valves in the system will be reduced by the amount(p.s.i.) of the discharge pressure.

Where either of the above conditions are unacceptable the use of Style JNB Balanced Bellows valves as described below is recommended.

Note: Conventional Valves with vented bonnets are not suitable for continuous back pressure.

Bellows Valves5c The Style JNB Balanced Bellows Safety-Relief valve is particularly

adapted to installations where two or more relief valves must be vented into a closed exhaust system resulting in variable back pressures which would affect the performance of a conventional type relief valve. The metal bellows used in Style JNB is so designed that the effective area of the bellows is equivalent to that of the valve seat. Because of this balanced area design, back pressure surges, whether constant or variable, do not adversely affect the performance of the valve. These valves are regularly furnished with atmospheric vents from the bonnet.

Recommended Installation –Discharging to Atmosphere; Inlet Piping

Direct as above or as in other illustration.

Recommended Installation –Outlet Pipe Designed for Minimum Strain on Valve;

Inlet Piping Direct as above or as in other illustration.

DISCHARGE PIPE

49

Flanges and flange facing

Dimensions of flanges conform to current ASME standards. On full nozzle valve inlets, however the thicknesses are greater than the minimum required by ASME standards. Dimension X shown opposite should be used to determine bolt length. Dimension X remains the same for raised face or ring joint flanges and is found on pages 16 through 43.

All flange facings are finished with spiral serration. Concentric serration finish are optional. Flange facings on valves for marine or Navy use must follow government specifications. Drilling of inlet and outlet flange holes straddle the valve center line. Inlet and outlet flanges are spot faced on back for stud nuts. Center-to-face dimensions are Subject to tolerance of ±1/16"(1.5 mm) for valves through 4" inlet size and ±1/8"(3.2 mm) for valves with inlet size larger than 4".

In addition to standard raised face or ring joint flanges, tongue and groove or other facings are optionally available.

50 51

Equivalents and conversion factors

This table may be used in two ways: (1) Multiply the unit under column A by the figure under column B, the result is the unit under column C.

(2) Divide the unit under column C by the figure under column B, the result is then in the unit under column A.

Atmospheres

Atmospheres

Atmospheres

Atmospheres

Atmospheres

Atmospheres

14.697

1.033

29.92

760

407

33.90

Pounds per square inch

Kilograms per sq. cm.

Inches of mercury

Millimeters of mercury

Inches of water

Feet of water

Centimeters

Centimeters

Centimeters

Centimeters

Cubic Centimeters

Cubic feet

Cubic feet

Cubic feet per second

Cubic inches

Cubic inches

Cubic inches

Cubic meters per hour

0.3937

0.03281

0.01

0.01094

0.06102

7.48055

0.17812

448.833

16.39

0.004329

264.17

4.4

Inches

Feet

Meters

Yards

Cubic inches

Gallons

Barrels

Gallons per minute

Cubic centimeters

Gallons

Gallons

Gallons per minute

Feet

Feet

Feet

Feet of water

Feet of water

0.3048

0.3333

30.48

0.882

0.433

Meters

Yards

Centimeters

Inches of mercury


Gallons (U.S.)

Gallons (U.S.)

Gallons (U.S.)

Gallons (Imperial)

Gallons (U.S.)

Gallons (U.S.)

Gallons of water

Gallons of liquid per

minuteGallons per minute

3785

0.13368

231

277.4

0.833

3.785

8.328

500× Sp.Gr.

0.002228

Cubic centimeters

Cubic feet

Cubic inches

Cubic inches

Gallons (Imperial)

Liters

Pounds (at 21˚C)

Pounds per hr. liquid

(at 21˚C)Cubic feet per second

Inches

Inches

Inches

Inches

Inches of mercury

Inches of mercury

Inches of mercury

Inches of mercury

Inches of water

Inches of water

2.54

0.0833

0.0254

0.02778

1.133

0.4912

0.0334

0.0345

0.03613

0.07355

Centimeters

Feet

Meters

Yards

Feet of water


Atmospheres



Inches of mercury

Kilograms

Kilograms

Kilograms

Kilograms per minute




2.205

0.001102

35.27

132.3

14.22

0.9678

28.96

Pounds

Short tons (2000 lbs.)

Ounces

Pounds per hour


Atmospheres

Inches of mercury

AMULTIPLY

BBY

CTO OBTAIN

AMULTIPLY

BBY

CTO OBTAIN

Liters

Liters

Liters per hour

1000

0.2642

0.0044

Cubic centimeters

Gallons

Gallons per minute

Meters

Meters

Meters

Meters

3.281

1.0936

100

39.37

Feet

Yards

Centimeters

Inches

Pounds

Pounds

Pounds

Pounds

Pounds

Pounds per hour

Pounds per hour liquid

Pounds per sq. inch

Pounds per sq. inch

Pounds per sq. inch

Pounds per sq. inch

Pounds per sq. inch

Pounds per sq. inch

Pounds per sq. inch

453.6

0.0005

0.4536

0.000454

16

6.32/M. W.

0.002/

Sp. Gr. 27.684

2.307

2.036

0.0703

0.0680

51.71

0.7037

Grams

Short tons (2000 lbs.)

Kilograms

Metric tons

Ounces

Cubic feet per minute

Gallons per minute

liquid (at 21˚C)Inches of water

Feet of water

Inches of mercury


Atmospheres

Millimeters of mercury

Meters of water

Specific Gravity

(of gas or vapors)Square centimeters

Square inches

28.97

0.1550

6.452

Molecular Wt.

(of gas or vapors)Square inches

Square centimeters

Water (cubic feet) 62.3 Pounds (at 21˚C)

Temperature

CENTIGRADE=5/9 (FAHRENHEIT –32)FAHRENHEIT=9/5 CENTIGRADE +32

51

Ordering Information

The primary purpose of Style JNO/JNB safety relief valves is to protect lives and property. In order to select the proper valve for your application, please provide the information listed below.

Details of the process fluid and conditions are especially important. If there is any doubt as to selection or application of valves or parts, please contact our International Sales Sect.

Ordering Information

QuantityNominal valve size (inlet × orifice × outlet)Valve styleInlet connection rating and facingOutlet connection rating and facingService (liquid, gas or vapor)Set pressureBack pressure if any, and whether constant or variableMaximum service temperature (˚C)Cap or lifting lever typeValve materialsSeat materialCode requirementsRequired capacityAccumulation (allowable overpressure)Molecular weight–vaporSpecific gravity–gases and liquidsViscosity–liquids

Example

54 × L × 6JNO-45600RF150RFair790PsiGatmosphereambient 15˚CType Cstandardmetal-to-metal standardASME Unfired Pressure Vessel Code Section VIII1217 Nm3/min10%–1.0–

PartsTo order parts, the following information should be included:

1. Quantity2. Part name, i.e. (disc insert)3. Size, style and valve number4. Serial number (from valve nameplate)5. Original purchase order number (if serial

number has been destroyed)

SpringsTo order springs, the required valve set pressure must also be specified in addition to the above parts information.

Replacement valvesTo replace a valve in service, the serial number, set pressure and previous order number should be specified.

52 53

Set position of nozzle ring at shipment

After the test is completed, it is necessary to lower the set position of the nozzle ring to the specified position (the position of the shipment state). Also,Please make sure to seal the set screw part.

Nozzle ring set position on test bench.

Rotate the nozzle ring to the left and raise it to the position where it hits the desk holder and lower it to the recommended ring position.

The nozzle ring is moved until the pop operation From the set position about 1 or 2 notches to the left side Please adjust it.

Nozzle Ring

Nozzle Ring

Nozzle

Nozzle

In

Out

Chamber

Chamber

Disk Holder

Disk Holder

Disk Insert

Disk Insert

Set ScrewThe clearance is wide

Nozzle Ring

Nozzle Ring

Nozzle

Nozzle

In

Out

Chamber

Chamber

Disk Holder

Disk Holder

Disk Insert

Disk Insert

Set ScrewThe clearance is narrow

This set is the ring position at shipment and recommended setting position.

In this state, since the gas supply capacity is small, the disk insert does not sufficiently lift up, so the set pressure is sure It may be difficult to recognize.

Because the clearance is narrow, you can temporarily lift the disk insert with a small amount of gas supply capacity.

NoteIf this nozzle ring position is used as it is, blowdown will not be performed reliably, causing chattering and damage to the parts.

①When checking set pressure with test benchRegarding the setting pressure check (popping test) by the test bench, the set pressure may not be confirmed because the capacity of the test bench is small. In that case, you will need to check the setting pressure by adjusting the set position of the nozzle ring.When adjusting the setting position of the nozzle ring, it is necessary to release the sealed part in the set screw part.

② About blowdown (blowdown pressure)At factory shipment, the ring position of the nozzle ring which adjusts the blowdown is shipped at the recommended ring position, The blowdown value is delivered depending on the fluid condition and the amount of fluid blown out used in the actual equipment, the piping and vessel capacity before and after the valve etc. It may differ from the design guarantee value stated in the written form and the inspection report.Please be forewarned that if you need to adjust the blowdown, you will need to make adjustments with actual equipment.

On site acceptance inspection

53

OTHER PRODUCTS

Series 900 ······ Thermal relief and small size

JPV ······ Pilot valves

Series H ······ For Steam

SIZEORIFICECONNECTION

TEMPERATURE

: ½×1~1×1: 0.074 to 0.11( in2): Threaded: ASME 150Lb to ASME 2500Lb: -450ºF to 750ºF

SIZEORIFICECONNECTION

APPLICATIONTEMPERATURE

Please refer to MCJ/E-902

Please refer to MC-C5112

Please refer to MCJ/E-C5114

◀HS

: 1D2 to 8T10: D(0.11 in2) to T(26 in2): ASME 150Lb to ASME 2500Lb: 30 to 6000psig: GAS or Vapor: -70ºF to 400ºF

SIZEHS

HSA

SIZEHC

HCA

: 1½F2 to 8T10: Max. Pressure 900psig,: Max. Temperatare 750ºF : Max. Pressure 900psig,: Max. Temperatare 1020ºF : 1½H3 to 6R10: Max. Pressure 1500psig,: Max. Temperatare 750ºF : Max. Pressure 3000psig,: Max. Temperatare 1020ºF

本　社　工　場　〒981-3697 宮城県黒川郡大衡村大衡字亀岡 5-2　　　 TEL（022）344-4511（代表）FAX（022）344-4522E-mail : [email protected]

Main Office & Factory 5-2, Ohira Aza Kameoka, Ohira-mura, Kurokawa-gun, Miyagi, 981-3697, JapanTEL +81-22-344-4511　FAX +81-22-344-4522E-mail : [email protected]

http://www.motoyama-cp.co.jp

●販売・サービスネットワーク

東　京　支　店　　〒210-0007　神奈川県川崎市川崎区駅前本町 10-5　クリエ川崎 11F　TEL（044）381-8770（代表）　FAX（044）381-8772

大　阪　支　店　　〒550-0014　大阪市西区北堀江一丁目 12-19　クリモトビル 3F　　　TEL（06）6535-8111（代表）　FAX（06）6535-8655

国際営業部　　〒210-0007　神奈川県川崎市川崎区駅前本町 10-5　クリエ川崎 11F　TEL（044）381-8771　　　　FAX（044）381-8773

札幌営業所　　〒001-0912　札幌市北区新琴似 12条七丁目 1-47 　　　　　　　　　 TEL（011）766-1520　　　　FAX（011）766-1521　　　　　　　　　　　　　　　　　　　　　　　　　　　リバティタウンP棟 101 号

東北営業所　　〒981-3697　宮城県黒川郡大衡村大衡字亀岡 5-2 　　　　　　　　　 TEL（022）344-1761　　　　FAX（022）344-1762大衡サービスセンター　

上越営業所　　〒942-0036　新潟県上越市大字東中島 2393 番地　　　　　　　　　 TEL（025）542-5151　　　　FAX（025）542-5252上越サービスセンター　

関東営業所　　〒290-0046　千葉県市原市岩崎西一丁目 5-19 　　　　　　　　　　　 TEL（0436）21-4400　　　　FAX（0436）21-3540千葉サービスセンター　

静岡営業所　　〒422-8033　静岡市駿河区登呂二丁目 10-13　ハイツ富士 1F 　　　　TEL（054）288-2237　　　　FAX（054）288-2239

名古屋営業所　　〒481-0012　愛知県北名古屋市久地野安田 36番地　　　　　　　　　TEL（0568）26-6681　　　　FAX（0568）26-6631中部サービスセンター

阪神サービスセンター　　〒561-0894　大阪府豊中市勝部二丁目 18-3 　　　　　　　　　　　　 TEL（06）6854-7511　　　　FAX（06）6854-7512

徳山営業所　　〒745-0861　山口県周南市新地一丁目 6-11 　　　　　　　　　　　　 TEL（0834）21-5012　　　　FAX（0834）31-0450周南サービスセンター

四国営業所　　〒792-0851　愛媛県新居浜市観音原町 1013-1 　　　　　　　　　　　TEL（0897）40-0270　　　　FAX（0897）40-0305新居浜サービスセンター

大分営業所　　〒870-0108　大分市大字三佐字山ノ神 980-1 　　　　　　　　　　　 TEL（097）527-3704　　　　FAX（097）522-2352大分サービスセンター

●海外関連会社本山阀门（大連）有限公司　〒116601　中国　遼寧省大連市金州新区港興大街 39-14-7 TEL +86-411-6589-1277　　FAX +86-411-6589-1278

●海外販売代理店中国、韓国、台湾、シンガポール、インドネシア、マレーシア、サウジアラビア

●SALES AND SERVICE NETWORKOverseas Marketing & Sales Dept. :11th Floor, Clie Kawasaki, 10-5, Ekimaehoncho, Kawasaki-ku, Kawasaki-city, Kanagawa, 210-0007 Japan 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 TEL +81-44-381-8771　 FAX +81-44-381-8773Domestic Sales Branches : Tokyo, Osaka, Sapporo, Tohoku, Joetsu, Kanto, Shizuoka, Nagoya, Hanshin, Tokuyama, Shikoku, Oita

●OVERSEAS AFFILIATED COMPANYMOTOYAMA VALVE (DALIAN) CO., LTDGangxing Street 39-14-7, Jinzhou New District, Dalian-city, 116601 China　　 TEL +86-411-6589-1277　　FAX +86-411-6589-1278

●OVERSEAS NETWORKChina, Korea, Taiwan, Singapore, Indonesia, Malaysia, Saudi Arabia

■本カタログの記載内容は、商品の改良等のため予告なく変更することがありますので予めご了承下さい。■MOTOYAMA is continuously improving and upgrading its product design, specifications and/or dimensions. Information included herein is subject to change without notice.

■本カタログは正しい情報の提供を目的としたものであり、本製品の市場性また適合性の保証を証明するものではありません。■This catalog is supplied for information purpose only and should not be considered certified marketability and conformability of this product.

2019.10 SPP

bulletin no. mce-c 5017p

Documents