type ezl pressure reducing regulator for low differential ... · bulletin 71.2 d103092x012 october...

Bulletin 71.2D103092X012

October 2017

Type EZL

Type EZL Pressure Reducing Regulator for Low Differential Pressure Applications

W8962_1

Figure 1. Type EZL Pressure Reducing Regulator

Features • Low Differential Applications—Can accurately control

at pressure differentials as low as 2.9 psid / 0.2 bar d.

• Bubble-Tight Shutoff—A knife-edged metal plug and soft seat provide bubble tight shutoff for use in applications where positive shutoff is required such as dead-end systems.

• No Atmospheric Bleed—Eliminates nuisance and wasteful bleed gas to atmosphere by utilizing a self-contained control system, which bleeds 100% of the gas to the downstream system.

• Easy In-Line Maintenance—The light-weight top entry design enables trim parts to be inspected, cleaned and replaced without removing the body from pipeline.

• Precise Pressure Control—Provides stable and accurate downstream pressure control regardless of inlet pressure variations or demand changes.

• High Corrosion Resistance—Anodized casings provide excellent corrosion resistance even in below-grade installations.

• Full Pressure Rating—The equal inlet and outlet pressure rating of 290 psig / 20 bar, which allows easier selection and requires no special startup or shutdown procedures.

• Integral Slam Shut Configurations—Types EZHOSX and EZHSO-OSX discontinue gas service by shutting the gas off if there is an overpressure or underpressure condition.

• High Turn Down Capability—The oversized diaphragm and unique piloting system allow for high turn down, providing superior pressure control in systems with large variations in downstream flow demand.

• Common Body Platform—The Type EZL uses the same standard Fisher™ E-Body as the Types EZH and EZR pressure reducing regulators and Types EZ, ES, ED and ET pressure reducing control valves. This allows easy conversion from one product to another without the need to remove the E-Body from the pipeline.

• Full Usable Capacity—Fisher regulators are laboratory tested. 100% of the published flow capacity can be used with confidence.

2

Type EZL

Body Sizes, End Connection Styles and Pressure Ratings(1)

See Table 1Maximum Inlet and Outlet (Casing) Pressures(1)

290 psig / 20.0 barMaximum Emergency (Design Casing Pressure)(1)

290 psig / 20.0 barMaximum Operating Differential Pressure(1)

290 psid / 20.0 bar dMinimum Differential Pressure(1)

TRIM, PERCENT OF CAPACITy

MINIMUM DIFFERENTIAL FOR FULL STROkE, psid / bar d

2 in. / DN 50 3 in. / DN 80 4 in. / DN 100

100805030

2.9 / 0.2042.9 / 0.2043.0 / 0.2073.4 / 0.234

2.9 / 0.2043.1 / 0.2143.2 / 0.2213.5 / 0.241

2.9 / 0.2043.2 / 0.2213.7 / 0.2553.9 / 0.269

Outlet Pressure Ranges See Table 2Proportional Band Ranges See Table 2IEC Sizing Coefficients See Table 6Flow Coefficients See Tables 7, 8, 9 and 10Flow Capacities See Tables 11 and 12Pressure Registration ExternalTemperature Capabilities(1)

Nitrile (NBR) version: -20 to 180°F / -29 to 82°C Fluorocarbon (FKM) version: 0 to 180°F / -18 to 82°COptions • Travel Indicator • Integral Type OS2 Slam-shut DeviceConstruction Materials Type EZL Main Valve Main Body: Cast iron or WCC Steel Intermediate Flange: Steel Actuator Casings: Anodized Forged Aluminum Inlet and Outlet Plates: Steel Diaphragm: Nitrile (NBR) with PVC coating

1. The pressure/temperature limits in this Bulletin and any applicable standard or code limitation should not be exceeded.

SpecificationsThe Specifications section lists the specifications for Type EZL pressure reducing regulator. Factory specifications for specific regulator constructions are stamped on the nameplate fastened to either the main actuator or the pilot spring case.

Construction Materials (continued) Type EZL Main Valve (continued) O-ring: Nitrile (NBR) or Fluorocarbon (FKM) Seat: Nitrile (NBR) or Fluorocarbon (FKM) Type 6352, 6353, 6354L, 6354M or 6354H Pilot Body, Body Plug, Spring Case and Closing Cap: Aluminum (standard) or Stainless steel Control Spring: Zinc-plated steel Bellows Assembly: Nickel and stainless steel Body Plug and Closing Cap Gaskets: Composition Other Metal Trim Parts: Steel, Aluminum and/or Stainless steel Diaphragm: Nitrile (NBR) or Fluorocarbon (FKM) O-rings and Soft Parts: Nitrile (NBR) (standard) or Fluorocarbon (FKM) 61 Series Pilots Body and Spring Case: Cast iron Upper and Lower Diaphragm Type 61L: Nitrile (NBR) or Fluorocarbon (FKM) Type 61HP: Neoprene (CR) or Fluorocarbon (FKM) Metal Trim Parts: Steel, Stainless steel, Cast iron, Aluminum, Brass or Zinc Gasketing: Neoprene (CR) Elastomer Seat and O-ring: Nitrile (NBR) or Fluorocarbon (FKM) Type 161EBM Body: Stainless steel Spring Case: Stainless steel Body Plug and Diaphragm Limiter: Stainless steel Control Spring and Adjusting screw: Plated steel valve Plug, Diaphragm and O-ring: Nitrile (NBR) or Fluorocarbon (FKM) Pilot and Actuator Vents Type Y602 vent assembly Type 252 Pilot Supply Filter Body: Aluminum or Stainless steel Filter Cartridge: Polyethylene O-ring: Nitrile (NBR) Drain valve or Pipe Plug: Stainless steel Type P590 Pilot Supply Filter Body and Filter Head: Aluminum or Brass Filter Element: Cellulose

IntroductionType EZL regulators are accurate pilot-operated, pressure balanced and soft seated regulators. They are designed for use in natural gas distribution applications such as district regulating stations and commercial/industrial meter sets. They provide low differential, smooth, reliable operation, tight shutoff and long life.

The Type EZL pressure reducing regulator includes a pilot mounted on the Type EZL main valve for pressure reducing, wide-open monitoring or working monitoring applications.

The Type EZL is also available with a slam-shut device for overpressure and/or underpressure protection.

Principle of Operation

Single-Pilot Regulator (Figures 2 and 3)The pilot-operated Type EZL uses inlet pressure as the operating medium, which is reduced through pilot operation to load the actuator diaphragm. Outlet pressure opposes loading pressure in the actuator and also opposes the pilot control spring.

3

Type EZL

Figure 3. Principle of Operation for the Type EZL with Type 61L Pilot

Figure 2. Principle of Operation for the Type EZL with Type 6352 Pilot

E09

44

June 2015 Type EZLType EZL with 6350 Series Pilot and Type P590 Pilot Supply Filter

INLET PRESSUREOUTLET PRESSURE

ATMOSPHERIC PRESSURELOADING PRESSURE

E0944_06/2015

INLET PRESSUREOUTLET PRESSUREATMOSPHERIC PRESSURE

LOADING PRESSURE

P590 SERIES PILOT SUPPLy FILTER

“D” PORTSENSE

PRESSURE

TyPE EZL MAIN VALVE

“A” PORTINLET PRESSURE

“C” PORTLOADING PRESSURE

TyPE 6352 PILOT

Type EZL with Type 61L Pilot

E095

9

August 2015 Type EZL


ATMOSPHERIC PRESSURELOADING PRESSURE

TyPE EZL MAIN VALVE

E0959_08/2015

SENSE PRESSURE


LOADING PRESSURE

LOADING PRESSURE

INLET PRESSURE

TyPE 61L PILOT


4

Type EZL

When outlet pressure drops below the setting of the pilot control spring, pilot control spring force on the pilot diaphragm thus opens the pilot valve plug, providing additional loading pressure to the actuator diaphragm. This diaphragm loading pressure opens the main valve plug, supplying the required flow to the downstream system. Any excess loading pressure on the actuator diaphragm escapes downstream through the bleed restriction in the pilot.

When the gas demand in the downstream system has been satisfied, the outlet pressure increases. The increased pressure is transmitted through the downstream control line and acts on the pilot diaphragm. This pressure exceeds the pilot spring setting and moves the diaphragm, closing the orifice. The loading pressure acting on the main diaphragm bleeds to the downstream system through a bleed restriction in the pilot.

Monitoring Systems Monitoring regulation is overpressure protection by containment, therefore, there is no relief valve to vent to the atmosphere. When the working regulator fails to control the pressure, a monitor regulator installed in series, sensing the downstream pressure, goes into operation to maintain the downstream pressure at a slightly higher than normal pressure. During an

overpressure situation, monitoring keeps the customer on line. Also, testing is relatively easy and safe. To perform a periodic test on a monitoring regulator, increase the outlet set pressure of the working regulator and watch the outlet pressure to determine if the monitoring regulator takes over at the appropriate outlet pressure.

Wide-Open Monitoring Systems (Figure 4)There are two types of wide-open monitoring systems: upstream and downstream. The difference between upstream and downstream monitoring is that the functions of the regulators are reversed. Systems can be changed from upstream to downstream monitoring and vice-versa, by simply reversing the setpoints of the two regulators. The decision to use either an upstream or downstream monitoring system is largely a matter of personal preference or company policy.

In normal operation of a wide-open configuration, the working regulator controls the system’s outlet pressure. With a higher outlet pressure setting, the monitor regulator senses a pressure lower than its setpoint and tries to increase outlet pressure by going wide-open. If the working regulator fails, the monitoring regulator assumes control and holds the outlet pressure at its outlet pressure setting.

Table 1. Main valve Body Sizes, End Connection Styles and Body Ratings

MAIN VALVE BODy SIZE MAIN VALVE BODy MATERIAL END CONNECTION STyLESTRUCTURAL DESIGN RATING(1)

psig bar

2, 3 and 4 in. / DN 50, 80 and 100

WCC Steel

NPT(2) or SWE(2) 1500 103

CL150 RF 290 20.0

CL300 RF 750 51.7

CL600 RF or BWE 1500 103

Cast Iron

NPT(2) 400 27.6

CL125 FF 200 13.8

CL250 RF 500 34.5

1. Structural Design Rating is the rating for the main valve body. The Type EZL complete assembly is limited to 290 psig / 20.0 bar.2. Only available in 2 in. / DN 50 body sizes.

PILOT TyPEOUTLET (CONTROL) PRESSURE RANGE SPRING

COLOR SPRING

PART NUMBER

APPROxIMATE PROPORTIONAL BAND

psig bar psig bar

6352 2 to 10 0.14 to 0.69 Black 14A9673X012 0.3 0.02

6353 3 to 40 35 to 125

0.21 to 2.8 2.41 to 8.6

YellowRed

1E3925270221K748527202

0.51.0

0.030.07

6354L(1)

6354M(2)

6354H(2)

85 to 200 175 to 220

200 to 300(4)

5.9 to 13.8 12.1 to 15.2

13.8 to 20.7(4)

BlueBlue

Green

1L3461271421L34612714215A9258X012

3.03.05.0

0.20.20.3

61L

0.25 to 2 1 to 5 2 to 10 5 to 15 10 to 20

0.017 to 0.14 0.069 to 0.35 0.14 to 0.69 0.35 to 1.03 0.69 to 1.38

RedYellowBlue

BrownGreen

1B8863270221J8578270221B8864270221J8579271421B886527022

0.150.20.30.50.7

0.010.010.020.030.05

61HP15 to 45 35 to 100

100 to 300(4)

1.03 to 3.10 2.41 to 6.90

6.90 to 20.7(4)

YellowBlueRed

1E3925270221D3872270221D465127142

1.01.53.0

0.070.10.2

161EBM(3)

5 to 15 10 to 40 30 to 75 70 to 140 130 to 200

200 to 350(4)

0.34 to 1.03 0.69 to 2.8 2.07 to 5.17 4.83 to 9.65 8.96 to 13.8

13.8 to 24.1(4)

WhiteYellowBlackGreenBlueRed

17B1260X01217B1262X01217B1259X01217B1261X01217B1263X01217B1264X012

0.30.51.02.04.05.0

0.020.030.070.140.280.3

1. Without diaphragm limiter.2. With diaphragm limiter.3. Monitoring pilot for working monitors.4. Operating range is limited to maximum pressure.

Table 2. Outlet (Control) Pressure Ranges

5

Type EZL

Figure 4. Wide-Open Monitoring System Operational Schematic

Figure 5. Working Monitoring System Operational Schematic

Type EZL Downstream Wide-Open Monitor

E094

8

November 2015 Type EZL


INTERMEDIATE PRESSURELOADING PRESSURE

PILOT SUPPLY PRESSURE


ATMOSPHERIC PRESSURE

INTERMEDIATE PRESSURE


LOADING PRESSURE

E0948_11/2015

TyPE EZL MAIN VALVE TyPE EZL MAIN VALVE

TyPE 67C PILOT SUPPLy REGULATOR


TyPE 6352 PILOT


TyPE 6352 PILOT

E0946_08/2015

TyPE EZL MAIN VALVE TyPE EZL MAIN VALVE

TyPE 6352 PILOT

Type EZL Working Monitor

E094

6


August 2015 Type EZL






LOADING PRESSURE


TyPE 6352 PILOT


161EB SERIES PILOT


E094

8









LOADING PRESSURE


E094

8









LOADING PRESSURE

6

Type EZLType EZLOSX

E097

1

August 2015 Type EZLOSX



LOADING PRESSURE

EQUALIZER ByPASS

VALVE PLUG DISk

MANOMETRIC DEVICE STEM

MANOMETRIC DEVICE

VALVE PLUG

MECHANISM BOxFigure 6. Type EZLOSX Operational Schematic

E0971_08/2015

Type EZLOSX

E097

1

August 2015 Type EZLOSX



LOADING PRESSURE

When using a 6350 Series pilot on the monitoring regulator, it should be equipped with a pilot supply regulator set to 5 psig / 0.34 bar plus the monitor minimum differential pressure above the working regulator pressure setting. Since the pilot on the monitoring regulator is wide-open during normal operation, the pilot supply regulator prevents differential check valve chatter on the monitoring regulator pilot.

Working Monitoring Regulators (Figure 5)In a working monitoring system, the upstream regulator requires two pilots and it is always the monitoring regulator. The additional pilot permits the monitoring regulator to act as a series regulator to control an intermediate pressure during normal operation. In this way, both units are always operating and can be easily checked for proper operation.

In normal operation, the working regulator controls the outlet pressure of the system. The monitoring regulator’s working pilot controls the intermediate pressure and the monitoring pilot senses the system’s outlet pressure. If the working regulator fails, the monitoring pilot will sense the increase in outlet pressure and take control.

Working monitor installations require a Type EZL main valve with a working pilot and a monitoring pilot for the upstream regulator and a Type EZL with the appropriate pilot for the downstream regulator.

Pilot DescriptionsType 6352—Outlet pressure range of 2 to 10 psig / 0.14 to 0.69 bar.

Type 6353—Outlet pressure range of 3 to 125 psig / 0.21 to 8.6 bar.

Type 6354L—Outlet pressure range of 85 to 200 psig / 5.9 to 13.8 bar.

Type 6354M—Outlet pressure range of 175 to 220 psig / 12.1 to 15.2 bar.

Type 6354H—Outlet pressure range of 200 to 290 psig / 13.8 to 20.0 bar.

Type 61L—Low pressure pilot for outlet pressure range of 0.25 to 20 psig / 0.02 to 1.38 bar.

Type 61HP—Extra high pressure pilot for outlet pressure range of 15 to 290 psig / 1.03 to 20.0 bar.

Type 161EBM—Outlet pressure range from 5 to 290 psig / 0.34 to 20.0 bar. The Type 161EBM is used as the monitor override pilot on working monitor applications.

Slam-Shut Device Principle of OperationThe slam-shut device on the Type EZLOSX can provide either overpressure (OPSO) or overpressure (OPSO) and underpressure (UPSO) protection by completely shutting off the flow of gas to the downstream system. Pressure is registered on one side of the diaphragm, piston or bellows and is opposed by the setpoint control spring of the manometric sensing device. The Type OSX slam-shut valve tripping pressure is determined by the setting of the control spring.

Overpressure: when the downstream pressure increases above the setpoint, the pressure on top of the diaphragm overcomes the spring setting and moves the manometric device stem.

Underpressure: when the downstream pressure decreases below the setpoint, the control spring pressure below the diaphragm overcomes the downstream pressure and pushes the diaphragm which moves the manometric device stem.

7

Type EZL

When the pressure of the downstream line rises above the set pressure (or drops below the set pressure) the manometric device senses the pressure change and triggers the detection stage which activates the second stage, releasing the slam-shut valve plug. Once the slam-shut device has been tripped, it must be manually reset.

InstallationThe Type EZL may be installed in any position, but is normally installed in a horizontal pipeline with the pilot or pilots above the body. See Figure 10 for typical piping installation.

Capacity InformationNote

Type EZL flow capacities are laboratory verified; therefore, they may be sized for 100% flow using capacities as shown in Table 11. It is not necessary to reduce published capacities.

Tables 11 and 12 show the natural gas regulating capacities of the Type EZL regulator at selected inlet pressures and outlet pressure settings. Flows are in thousands of SCFH at 60°F and 14.7 psia (and in thousands of Nm³/h at 0°C and 1.01325 bar) of 0.6 specific gravity natural gas. To determine equivalent capacities for air, propane, butane or nitrogen, multiply the capacity by the following appropriate conversion factor: 0.775 for air, 0.628 for propane, 0.548 for butane or 0.789 for nitrogen.

For gases of other specific gravities, multiply the given capacity by 0.775 and divide by the square root of the appropriate specific gravity. Then, if capacity is desired in normal cubic meters per hour at 0°C and 1.01325 bar, multiply SCFH by 0.0268.

To find approximate regulating capacities at pressure settings not given in Tables 11 and 12 or to find wide-open flow capacities for relief sizing at any inlet pressure, perform one of the following procedures. Then, if necessary, convert using the factors provided above.

Critical Pressure DropsFor critical pressure drops (absolute outlet pressure equal to or less than one-half of absolute inlet pressure), use the following formula:

Q = (P1)(Cg)(1.29)

Non-Critical Pressure DropsFor pressure drops lower than critical (absolute outlet pressure greater than one-half of absolute inlet pressure).

Q = CgP1SIN DEG520GT

3417C1

) )P1

P

where, Q = gas flow rate, SCFH P1 = absolute inlet pressure, psia (P1 gauge + 14.7) Cg = regulating or wide-open gas sizing coefficient G = gas specific gravity of the gas T = absolute temperature of gas at inlet, °Rankine C1 = flow coefficient P = pressure drop across the regulator, psi

Table 4. Applications and Construction Guide (See Figure 7)

APPLICATION MECHANISM BOx REQUIRED MANOMETRIC SENSING DEVICE REQUIRED

Overpressure Shutoff (OPSO)

BM1

Type BMS1 - - - -

Underpressure Shutoff (UPSO) Type BMS1 - - - -

Overpressure Shutoff (OPSO) and Underpressure Shutoff (UPSO) Type BMS1 - - - -

Overpressure Shutoff (OPSO) and Underpressure Shutoff (UPSO)BM2

Type BMS1 Type BMS2

Overpressure Shutoff (OPSO), Overpressure Shutoff (OPSO) and Underpressure Shutoff (UPSO) Type BMS1 Type BMS2

1. When using one manometric sensing device for both overpressure and underpressure shutoff, make sure that the difference between set pressures falls below the maximum range shown in Table 3.

2. When using a Type BMS1 and a Type BMS2, the Type BMS1 can only be used for high trip.

MONITORING PILOT INFORMATION MINIMUM PRESSURE OVER NORMAL OUTLET PRESSURE AT wHICH wORkING MONITOR PILOT CAN BE SETMONITOR PILOT FOR wORkING

MONITOR APPLICATION

OUTLET (CONTROL) PRESSURE RANGE SPRING

COLOR SPRING

PART NUMBERpsig bar psid bar d

Type 161EBM

5 to 15 10 to 40 30 to 75 70 to 140 130 to 200

200 to 350(1)

0.34 to 1.030.69 to 2.82.07 to 5.174.83 to 9.658.96 to 13.8

13.8 to 24.1(1)

WhiteYellowBlackGreenBlueRed

17B1260X01217B1262X01217B1259X01217B1261X01217B1263X01217B1264X012

3.03.03.04.05.05.0

0.20.20.2

0.280.30.3

1. Operating range is limited to maximum pressure.

Table 3. Working Monitor Pilot Performance

8

Type EZL

SPRING RANGE SPRING COLOR

SPRING PART NUMBER

MANOMETRIC SENSING

DEVICE TyPE

MANOMETRIC SENSING

DEVICE STyLE

MAxIMUM SENSING INLET

PRESSURE, psig / bar

SETPOINT TOLERANCE,

psig / bar(1)

MAxIMUM DIFFERENCE BETwEEN

OVERPRESSURE AND UNDERPRESSURE,

psig / bar(2)

SPRING wIRE

DIAMETER, IN. / mm

SPRING FREE

LENGTH, IN. / mm

4.02 to 14.1 in. w.c. / 10 to 35 mbar Purple FA113195X12

162

Diaphragm

74 / 5.1

1.61 in. w.c. / 4 mbar

4.02 in. w.c. /10 mbar

0.080 /2.03

2.36 /59.9

9.97 to 33.2 in. w.c. / 25 to 83 mbar Orange FA113196X12 2.02 in. w.c. /

5 mbar10 in. w.c. /

25 mbar0.105 /2.67

2.36 /59.9

18 in. w.c. to 2.0 psig / 45 mbar to 0.14 bar Red FA113197X12 4.02 in. w.c. /

10 mbar20.1 in. w.c. /

50 mbar0.120 /3.05

2.36 /59.9

1.0 to 3.5 psig / 70 mbar to 0.24 bar Yellow FA113198X12 5.62 in. w.c. /

14 mbar24.1 in. w.c. /

60 mbar0.135 /3.43

2.36 /59.9

1.7 to 5.6 psig / 0.12 to 0.39 bar Green FA113199X12 7.23 in. w.c. /

18 mbar 2.18 / 0.15 0.156 /3.96

2.36 /59.9

2 to 11 psig / 0.14 to 0.76 bar Gray FA113201X12 20.1 in. w.c. /

50 mbar 5.08 / 0.35 0.192 /4.88

2.36 /59.9

4 to 19 psig / 0.28 to 1.3 bar Brown FA113202X12 1.16 / 80 mbar 8.70 / 0.60 0.207 /

5.262.36 /59.9

7 to 33 psig / 0.48 to 2.3 bar Black FA114139X12 2.47 / 0.17 16.0 / 1.1 0.250 /

6.352.36 /59.9

15 to 75 psig / 1.0 to 5.2 bar Blue FA113200X12

71 235 / 16.2

5.08 / 0.35 36.3 / 2.5 0.177 /4.50

2.36 /59.9

31 to 161 psig / 2.1 to 11.1 bar Brown FA113202X12 10.2 / 0.70 79.8 / 5.5 0.207 /

5.262.36 /59.9

59 to 235 psig / 4.1 to 16.2 bar Black FA114139X12 23.2 / 1.6 145 / 10.0 0.250 /

6.352.36 /59.9

235 to 290 psig / 16.2 to 20 bar Brown FA113202X12 27 Piston 1450 / 100 43.5 / 3.0 Requires use of

Type BMS1 or BMS20.207 /5.26

2.36 /59.9

1. Minimum suggested difference between slam-shut set pressure and normal operating pressure of the system.2. Maximum difference between overpressure and underpressure when using one manometric device (Type BMS1) with tripping hook. For underpressure and overpressure points greater

than this maximum number, use a second manometric device (Type BMS2) for underpressure protection.

Table 5. Spring Ranges, Part Numbers and Maximum and Minimum Pressures for Types BMS1 and BMS2

E0564

MECHANISM BOx (TyPE BM1) wITH 1 MANOMETRIC SENSING DEVICE (TyPE BMS1)

TyPE BM1

TyPE BMS1

MECHANISM BOx (TyPE BM2) wITH 2 MANOMETRIC SENSING DEVICES (TyPES BMS1 AND BMS2)

E0565

TyPE BM2

TyPE BMS1(RIGHT SIDE)

TyPE BMS2(LEFT SIDE)

Figure 7. Types of Slam-Shut Installation

9

Type EZL

Figure 8. Slam-Shut Device in Open Position Figure 9. Slam-Shut Device in Closed Position

FIRST STAGE RESET PIN (RED)

MECHANISM BOx

SECOND STAGE RELEASING SHAFT

SETPOINT ADJUSTMENT RING

W8128_1 W8129_1

MAIN VALVEBODy SIZE TRIM, PERCENT

OF CAPACITyLINE SIZE EQUALS BODy SIZE 2:1 LINE SIZE TO BODy SIZE PIPING

FL

In. DN xT FD xT FD

2 50

10080

0.8290.723

0.610.58

0.7660.740

0.600.55

0.89

5030

0.6160.714

0.500.39

0.7230.652

0.460.38

3 80

10080

0.7100.685

0.610.55

0.6600.676

0.600.55

5030

0.7880.770

0.420.34

0.7060.660

0.430.35

4 100

10080

0.6720.784

0.720.57

0.7140.600

0.700.61

5030

0.7790.770

0.450.36

0.7360.871

0.450.35

Table 6. IEC Sizing Coefficients


OF CAPACITy

LINE SIZE EQUALS BODy SIZE 2:1 LINE SIZE TO BODy SIZE PIPING

In. DN Cg Cv C1 Cg Cv C1

2 50

10080

22901914

63.256.7

36.233.8

21401760

61.551.5

34.834.2

5030

1290858

41.425.5

31.233.6

1230800

36.424.9

33.832.1

3 80

10080

48003950

144120

33.532.9

45803930

142120

32.332.7

5030

24401560

69.244.8

35.334.9

24201570

72.548.7

33.432.3

4 100

10080

65604550

200129

32.635.2

64404500

192146

33.630.8

5030

27401760

78.250.5

35.134.9

27501760

80.747.4

34.137.1

Table 7. Type EZL Main Valve Regulating Flow Coefficients


OF CAPACITyLINE SIZE EQUALS BODy SIZE 2:1 LINE SIZE TO BODy SIZE PIPING


2 50

10080

23601970

65.058.4

37.334.8

22001810

63.353.0

35.835.2

5030

1330884

42.626.3

32.134.7

1270820

37.525.7

34.833.1

3 80

10080

49404060

148123

34.533.9

47104050

146124

33.333.7

5030

25101610

71.346.1

36.335.9

25001620

74.750.1

34.533.3

4 100

10080

67604690

208133

33.536.3

66304630

198151

34.631.7

5030

28301820

80.552.0

35.236.0

28301810

83.148.7

35.138.2

Table 8. Type EZL Main Valve Wide-Open Flow Coefficients

10

Type EZL


OF CAPACITy



2 50

10080

22801950

67.760.4

34.633.2

21201840

66.558.3

32.832.6

5030

1310881

44.527.4

30.433.1

1290898

41.529.4

32.031.5

3 80

10080

47504180

138121

35.535.6

45204020

138121

33.934.1

5030

26801660

77.647.9

35.535.7

24901620

74.250.6

34.633.0

4 100

10080

64704600

200149

33.431.8

63404500

200145

32.732.1

5030

28201820

91.062.8

31.929.8

27801840

88.967.8

32.227.9

Table 10. Type EZLOSX Main Valve Wide-Open Flow Coefficients


OF CAPACITy



2 50

10080

22101890

65.758.6

33.632.3

20581790

64.656.6

31.931.6

5030

1270855

43.226.6

29.532.1

1250872

40.328.5

31.130.6

3 80

10080

46104060

134117

34.534.5

43903900

134118

32.933.1

5030

26001610

75.346.5

34.534.6

24201580

72.149.2

33.632.1

4 100

10080

62804470

194145

32.430.9

61604380

194141

31.731.1

5030

27401770

88.361.0

31.029.0

27001780

86.365.8

31.227.1

Table 9. Type EZLOSX Main Valve Regulating Flow Coefficients

Table 11. Capacities for Type EZL

INLET PRESSURE OUTLET PRESSURECAPACITIES IN THOUSANDS OF SCFH / Nm3/h OF 0.6 SPECIFIC GRAVITy NATURAL GAS USING

1:1 LINE SIZE TO BODy SIZE PIPING

2 in. / DN 50 Body 3 in. / DN 80 Body 4 in. / DN 100 Body

psig bar psig bar SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h

4 0.3 0.25 0.02 37 1.00 83 2.22 116 3.10

5 0.30.25

12

0.020.070.14

423935

1.131.060.94

948878

2.512.352.10

130122109

3.503.282.93

10 0.7

0.25357

0.020.210.340.48

63564940

1.681.511.321.06

13812411089

3.693.332.952.39

191173153124

5.124.644.113.34

15 1.0

14812

0.070.280.550.83

79746344

2.131.981.691.18

17316214099

4.644.363.752.65

239225195138

6.416.055.233.71

20 1.4

1101517

0.070.691.031.17

96796048

2.582.131.611.28

208175134107

5.584.713.612.88

287244188150

7.706.555.044.04

30 2.1

4152025

0.281.031.381.72

1261089369

3.372.892.491.86

271237206155

7.266.375.544.17

372330288217

10.08.867.735.83

40 2.8

9203035

0.621.382.072.41

15313610577

4.103.642.812.07

330298234174

8.858.006.274.66

454414326243

12.211.18.766.53

50 3.4

1320304045

0.901.382.072.763.10

18117215211585

4.864.624.073.102.27

391375335258190

10.510.18.996.935.11

538519466361267

14.413.912.59.687.16

- continued -

11

Type EZL

Table 11. Capacities for Type EZL (continued)





60 4.1

1725354555

1.171.722.413.103.79

20919918014991

5.625.354.833.992.45

451434397331206

12.111.710.68.895.52

622600551462288

16.716.114.812.47.73

75 5.2

24506070

1.65 3.454.144.83

251202165100

6.735.444.442.70

541448370227

14.512.09.926.08

745624516318

20.016.813.98.53

100 6.9356075

2.414.145.17

320280236

8.607.526.33

691617525

18.616.614.1

953856732

25.623.019.6

125 8.6 4675

3.175.17

390344

10.59.23

842757

22.620.3

11601051

31.128.2

150 10

5775100125

3.93 5.176.898.62

460436383291

12.311.710.37.82

992951847652

26.625.522.817.5

136713161179911

36.735.331.624.5

175 12

6875100125150

4.695.176.898.6210.3

530522482419316

14.214.012.911.38.47

114311291057930707

30.730.328.425.019.0

1574155814651296989

42.341.839.334.826.6

200 14

75100125150175

5.176.898.6210.312.1

603572525453338

16.215.414.112.29.07

1300124611551007759

34.933.531.027.020.4

17891723160314041062

48.046.343.037.728.5

225 16

75100125150175200

5.176.898.6210.312.113.8

683657619564484359

18.317.616.615.113.09.64

14651424135512461078807

39.338.236.433.428.921.7

201319661877173215041130

54.052.850.446.540.430.3

250 17

75125150175200225

5.178.6210.312.113.815.5

761708663601513379

20.419.017.816.113.810.2

16271541145613311145853

43.741.439.135.730.722.9

223221312021185315991194

59.957.254.249.742.932.1

285 20

75125150175200225

5.178.6210.312.113.815.5

869826791744681595

23.322.221.220.018.316.0

185017891726163515071327

49.748.046.343.940.535.6

253424672388227020981852

68.066.264.160.956.349.7





4 0.3 0.25 0.02 38 1.02 78 2.09 111 2.98

5 0.30.25

12

0.020.070.14

434036

1.151.080.96

888273

2.362.211.96

125118105

3.373.162.82

10 0.7

0.25357

0.020.210.340.48

63575041

1.701.531.351.10

13011710383

3.493.142.772.23

183166147120

4.924.463.963.21

15 1.0

14812

0.070.280.550.83

79756445

2.132.001.721.22

16415313192

4.404.123.532.48

229217188133

6.165.815.033.57

20 1.4

1101517

0.070.691.031.17

96816249

2.572.161.661.32

198165126100

5.304.433.382.70

275235181145

7.386.304.853.89

30 2.1

4152025

0.281.031.381.72

1241099571

3.342.932.551.91

257224194145

6.916.015.213.90

357317277209

9.588.517.435.61

Table 12. Capacities for Type EZLOSX

- continued -

12

Type EZL





40 2.8

9203035

0.62 1.382.072.41

15213710780

4.073.682.882.14

314281219162

8.427.555.884.36

436398314234

11.710.78.426.28

50 3.4

1320304045

0.90 1.382.072.763.10

18017215411987

4.824.634.133.182.35

371355315242178

9.979.548.476.494.77

516498448347257

13.813.412.09.326.89

60 4.1

1725354555

1.171.722.413.103.79

20820018215294

5.575.364.894.082.53

429411374311192

11.511.010.08.345.16

596576529444277

16.015.514.211.97.45

75 5.2

24506070

1.653.454.144.83

249206170104

6.685.534.562.79

514422346212

13.811.39.305.68

715600497306

19.216.113.38.21

100 6.9356075

2.41 4.145.17

318283241

8.547.616.47

657582493

17.715.613.2

913823704

24.522.118.9

125 8.6 4675

3.175.17

387348

10.49.34

801714

21.519.2

11121009

29.927.1

150 10

5775100125

3.93 5.176.898.62

456437389299

12.311.710.58.04

944901798611

25.324.221.416.4

131112631133877

35.233.930.423.5

175 12

6875100125150

4.695.176.898.6210.3

526519486427325

14.113.913.011.58.72

10871072999875662

29.228.826.823.517.8

1510149514071246952

40.540.137.833.425.6

200 14

75100125150175

5.176.898.6210.312.1

598573531462348

16.115.414.212.49.35

123711801089946710

33.231.729.225.419.1

17151654154013501022

46.044.441.436.227.4

225 16

75100125150175200

5.176.898.6210.312.113.8

674655623572495371

18.117.616.715.413.310.0

13961352128111731012755

37.536.334.431.527.220.3

192918851802166414471088

51.850.648.444.738.829.2

250 17

75125150175200225

5.178.6210.312.113.815.5

749709669612526392

20.119.018.016.414.110.5

15531460137512531075798

41.739.236.933.628.821.4

213920451941178115381149

57.454.952.147.841.330.9

285 20

75125150175200225

5.178.6210.312.113.815.5

851823794752693609

22.922.121.320.218.616.4

176916991634154414191245

47.545.643.941.438.133.4

242723662293218020171781

65.263.561.558.554.147.8

Table 12. Capacities for Type EZLOSX (continued)

- continued -

BODy SIZE

DIMENSION

A BD G M NCL125 FF,

CL150 RFCL250 RF, CL300 RF CL600 RF CL125 FF,

CL150 RFCL250 RF, CL300 RF CL600 RF

In. DN In. mm In. mm In. mm In. mm In. mm In. mm In. mm In. mm In. mm In. mm

2 50 10.00 254 10.50 267 11.25 286 5.00 127 5.25 133 5.63 143 12.50 318 3.06 78 16.25 413 8.66 220

3 80 11.75 298 12.50 318 13.25 337 5.88 149 6.25 159 6.63 168 15.49 393 3.81 97 17.58 447 9.99 254

4 100 13.90 353 14.50 368 15.50 394 6.95 177 7.25 184 7.75 197 16.67 423 5.10 130 17.58 447 9.99 254

Table 13. Type EZL Dimensions

13

Type EZL

FE

M

N

D

G

A

B

TyPE 252 FILTER

TyPE 61L, 61LD OR 61E PILOT

Figure 10. Type EZL Dimensions

TyPE 252 FILTER

TyPE 6352, 6353 OR 6354 PILOT

TyPE 161EBM PILOT

O

P

J

k

GE11539_B GE12413_B

BODy SIZE

DIMENSION

E FJ k O PCL125 FF,

CL150 RFCL250 RF, CL300 RF CL600 RF CL125 FF,

CL150 RFCL250 RF, CL300 RF CL600 RF

In. DN In. mm In. mm In. mm In. mm In. mm In. mm In. mm In. mm In. mm In. mm

2 50 10.00 254 10.50 267 11.25 286 5.00 127 5.25 133 5.63 143 13.53 344 3.06 78 10.50 267 12.50 318

3 80 11.75 298 12.50 317 13.25 337 5.88 149 6.25 159 6.63 168 16.52 420 3.81 97 11.83 300 14.13 359

4 100 13.88 353 14.50 368 15.50 394 6.94 176 7.25 184 7.75 197 19.03 483 5.10 130 11.83 300 14.13 359

Table 13. Type EZL Dimensions (continued)

14

Type EZL

Figure 11. Type EZLOSX Dimensions

BODy SIZEAPPROxIMATE SHIPPING wEIGHT

NPT SwE CL150 RF CL300 RF CL600 RF SCH 40 Actuator Only

In. DN Lbs kg Lbs kg Lbs kg Lbs kg Lbs kg Lbs kg Lbs kg

2 50 90 41 90 41 97 44 107 49 111 50 90 41 45 20

3 80 - - - - - - - - 172 78 182 83 186 84 - - - - 80 36

4 100 - - - - - - - - 201 91 225 102 270 122 - - - - 85 39

Table 15. Shipping Weights

BODy SIZE

DIMENSION wITH SLAM-SHUT

D HM(1) N

Diaphragm Piston Diaphragm Piston Bellow

In. DN In. mm In. mm In. mm In. mm In. mm In. mm In. mm

2 50 13.0 330 10.4 264 6.38 162 2.80 71 6.89 175 8.03 204 8.78 223

3 80 14.34 364 11.78 299 6.38 162 2.80 71 6.89 175 8.03 204 8.78 223

4 100 15.64 397 13.09 332 6.38 162 2.80 71 6.89 175 8.03 204 8.78 223

1. Type 71 BMS with a diaphragm has an M dimension of 2.80 in. / 71 mm.

Table 14. Type EZLOSX Dimensions

0.98 IN. / 25 mmMECHANISM BOx REMOVAL CLEARANCE

H

M

N

D

GE24229_A

15

Type EZL

Ordering GuideBody Size (Select One) 2 in. / DN 50 Body*** 3 in. / DN 80 Body*** 4 in. / DN 100 Body***

Body Material and End Connection Style (Select One)WCC Steel Cast Iron NPT (2 in. only)*** NPT (2 in. only)*** CL150 RF*** CL125 FF*** CL300 RF*** CL250 RF*** CL600 RF*** BWE (Indicate Schedule 40 or 80)** SWE**

Main Valve Seat Material (Select One) Nitrile (NBR) (standard)*** Fluorocarbon (FKM)***

Outlet Pressure Range (Select One)Type 61L 0.25 to 2 psig / 0.017 to 0.14 bar, Red*** 1 to 5 psig / 0.069 to 0.35 bar, Yellow*** 2 to 10 psig / 0.14 to 0.69 bar, Blue*** 5 to 15 psig / 0.35 to 1.03 bar, Brown*** 10 to 20 psig / 0.69 to 1.38 bar, Green***

Type 61HP 15 to 45 psig / 1.03 to 3.10 bar, Yellow*** 35 to 100 psig / 2.41 to 6.90 bar, Blue*** 100 to 300 psig / 6.90 to 20.7 bar, Red(1)***

Type 6352 2 to 10 psig / 0.14 to 0.69 bar, Black***

Type 6353 3 to 40 psig / 0.21 to 2.8 bar*** 35 to 125 psig / 2.41 to 8.6 bar, Red***

Type 6354L, 6354M or 6354H 85 to 200 psig / 5.9 to 13.8 bar, Blue*** 175 to 220 psig / 12.1 to 15.2 bar, Blue*** 200 to 300 psig / 13.8 to 20.7 bar, Green(1)***

Type 161EBM 5 to 15 psig / 0.35 to 1.03 bar, White*** 10 to 40 psig / 0.69 to 2.8 bar, Yellow*** 30 to 75 psig / 2.07 to 5.17 bar, Black*** 70 to 140 psig / 4.83 to 9.65 bar, Green*** 130 to 200 psig / 8.96 to 13.8 bar, Blue*** 200 to 350 psig / 13.8 to 24.1 bar, Red(1)***

Pilot Elastomer Material (Select One) Nitrile (NBR) (standard)*** Fluorocarbon (FKM)***

Travel Indicator (Optional) Yes*** No***

Main Valve Replacement Parts kit (Optional) Yes, send one replacement parts kit to match this order.

Pilot Replacement Parts kit (Optional) Yes, send one replacement parts kit to match this order.

Regulators Quick Order Guide* * * Readily Available for Shipment

* * Allow Additional Time for Shipment

* Special Order, Constructed from Non-Stocked Parts. Consult your local Sales Office for Availability.

Availability of the product being ordered is determined by the component with the longest shipping time for the requested construction.

Specification WorksheetApplication:Specific UseLine SizeFluid TypeSpecific GravityTemperature (Ambient Range + Fluid Temp Range)Does the Application Require Overpressure Protection? Yes No

Pressure:Maximum Inlet PressureMinimum Inlet PressureDifferential PressureSet PressureMaximum Flow

Accuracy Requirements:Less Than or Equal To: 5% 10% 20% 40%

Construction Material Requirements (if known):

1. Operating range is limited to maximum pressure.

Type EZL

Facebook.com/EmersonAutomationSolutions

LinkedIn.com/company/emerson-automation-solutions

Twitter.com/emr_automation

[email protected]

Fisher.com

D103092X012 © 2005, 2017 Emerson Process Management Regulator Technologies, Inc. All rights reserved. 10/17. The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Fisher™ is a mark owned by Fisher Controls International LLC, a business of Emerson Automation Solutions.

The contents of this publication are presented for information purposes only, and while effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are governed by our terms and conditions, which are available on request. We reserve the right to modify or improve the designs or specifications of our products at any time without notice.

Emerson Process Management Regulator Technologies, Inc. does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any Emerson Process Management Regulator Technologies, Inc. product remains solely with the purchaser.

Emerson Automation Solutions

Americas McKinney, Texas 75070 USA T +1 800 558 5853

+1 972 548 3574

Europe Bologna 40013, Italy T +39 051 419 0611

Asia Pacific Singapore 128461, Singapore T +65 6770 8337

Middle East and Africa Dubai, United Arab Emirates T +971 4 811 8100

http://www.Facebook.com/EmersonAutomationSolutions

http://www.LinkedIn.com/company/emerson-automation-solutions

http://www.Twitter.com/emr_automation

http://www.Fisher.com

type ezl pressure reducing regulator for low differential ... · bulletin 71.2 d103092x012 october...

Documents