steam conditioning valves - documents |...

4 GV

26 EN •

Steam conditioning valvesAS: Angle steam conditioning, Combination typeGS: Desuperheater for Globe type Including Globe PCV (GB, GM) with GS

Metso`s Neles series AS steam conditioning valves are most suitable in high pressure drop of the superheated steams as it enables the flow velocity to be controlled for pressure reduction through the multi stage trim or multi drilled hole trim and, it enables the accurate steam temperature to be controlled through the high efficient spray nozzle system. AS series are comprised of angle pattern, built in flow velocity control trim and integral spring loaded water injection nozzle separately for atomized steam temperature control. Also, series AS range of valves combines high integrity features, such as 2 or 3 dimensional flow path multi stage trim, a high flow capacity and a wide range of 'OMEGA' trim designs. The 'OMEGA' trim design presented a multi-passage, multi-turns trim. There are 2~32 turns designs available depending on pressure drop.The pressure drop is apportioned across the stacks of letdown so that the pressure drop progressively reduces as it passes through the stages of the trim.This gives excellent resistance to vibration and noise on high pressure drop applications. For very high pressure drop applications the multi stage trim, plug and seat insert would be manufactured from hardened stainless steel, stellite stainless steel, and inconels. Standard valves are equipped with VD spring diaphragm actuators or VC cylinder actuators with ND9000® intelligent valve controllers and for precise flow control, extended operational life performance monitoring on-line. Various actuators, such as electric motor, hydraulic cylinder with hydraulic power unit are also used.

Construction□ Various construction design available with a combi-

nation and globe PCV + independent desuperheaters□ Equipped flow velocity control trim, such as Tendril

(multi drilled hole), Omega trim (multi stage trim)depending on the required pressure drop

□ Quick change trim available depending from the appli-cation

□ Anti-stick Plug & Guide trim and Pressure balancedvalve plug or pilot balanced plug and minimal surfaceguided trim

□ Wide material selection for different applications□ Many end connection styles available for different

applications□ Heavy duty structural body with suitable materials by

forgings or castings

□ Extension bonnet design for wide temperature range□ Stud bolted bonnet is standard, applicable 'pressure

seal bonnet' for easy maintenance by optionally□ Heavy duty gland flange for keeps to be more stable

packing tightness, liveload also applicable□ Yoke guided stem clamp by two rails for prevent stem

rotating□ Independent spray nozzles are available for installed

outside□ Effective atomizing ; wide spray nozzle design applica-

ble, such as 'water jet type' and 'integral spring loadedinjection type'

Wide range of applications□ High pressure drop superheated steam and desuper-

heating in turbine bypass system.□ Inherently characterized trim offered in Linear, the Equal

Percentage will be optionally.□ Large range of Cv per body size allowing for wide

applicable in process conditions□ Clamped cage for heavy duty guiding on severe serv-

ice applications□ High integrity cage guiding system

Benefits of 'OMEGA' trim applications□ Quick change trim and top entry construction for easy

inline maintenance □ Valve assembly is easy and self guiding□ Flow characteristics can be easily changed with inter-

changeable trim parts□ Reliable system operation with eliminates shut down □ Prolonged trim and valve life time□ Effective noise control□ Reduction of cavitation damaging and pipe fatigue □ Stable control of valve and process

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□ Faster start-up, reduced system managing cost□ ND9000 digital valve controller with online diagnostics ena-

bles performance follow up and predictive maintenance□ Efficient asset management with Metso FieldCare open archi-

tecture software and excellent networking capabilities

Safety and quality□ Rugged one piece body structure to minimizes the leak paths

and makes the valve insensitive to pipe stress□ Strictly tested to ensure specified performance with quality

assurance systems in according to ISO 9001

Accurate control & performance□ ND9000 digital valve controller for auto-calibration and accu-

rate control □ Accurate and sensitive diaphragm and cylinder actuators□ Stable flow control with high rangeability □ Low-noise control and erosion resistant trims □ Streamline flow passage to secure capacity

Accessories and control devicesA variety of accessories are available including Neles positionersand limit switches, solenoid valves, transducers, relays, boostersand volume tanks and build-in volume chambers etc.

Different trim designs-1

Tendril (Multi-hole, Multi-stage) trimThe trim design presented a multi-stage, multi-hole trim. Thereare 1…5 stages designs available depending on pressure dropand potential for cavitation.

The Pressure drop is divided between the stages so that the pres-sure progressively reduces as it passes through the stages of thetrim. This gives excellent resistance to cavitation on high pressuredrop applications.

Tendril multi stage Tendril multi stage, Pilot balanced trim

TECHNICAL BULLETIN 7/15

S t e a m c o n d i t i o n i n g v a l v e s4 G V 2 6 E N

Different trim designs-2

Omega quick change, Standard balanced trim

The Omega standard balanced trim design is based on 2 or 3dimensional multi stage trim cage and balanced plug.The opened multi stage trim shape defines the flow path throughthe valve and flow characteristics of the valve(linear, equal per-centage, or others), standard trim characteristic is linear.The balancing holes are located in the top of the plug. This trim isspecially suited to high pressure drop application and is used inthe majority of control applications.

Omega quick change, Pilot balanced trim

Pilot balanced trim construction is designed with a special pilotplug & seat built-in the main plug. The design gives excellent seattightness to leakage on high pressure drop and high temperatureapplications.The design applicable TSO (Tight Shut Off, seat leakage class V)requirement in high temperature services.

Spray nozzle applications

Spray nozzle mounting on theGS Desuperheater

Spray nozzle mounting on theAS combination type

Integral Spring loaded injectiontype spray nozzle

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Steam Conditioning Valves Products Line-up

Part-I, Combination Angle typeNeles Series AS

□ Applicable for high pressure let down, up to ASME 2500 class□ Combining valve with the pressure let down the steam condi-

tioning (desuperheating)□ Applicable size: Inlet 2in(DN20) ~ 20in(DN500), Outlet

4in(DN100) ~ 36in(DN900), other size available□ Available built-in mounted spray nozzle with water jet type or

integral spring loaded water injection nozzle separately foratomized temperature control.

□ Available Flanged, Butt-Weld, Other end connections

Part-II, Globe PCV + Desuperheater typeNeles Series GB or GM + GS

□ Applicable for lower and medium pressure let down, up toASME 900 class

□ Combining valve with the pressure let down the steam condi-tioning (desuperheating)

□ Applicable size: Inlet 2in(DN20) ~ 20in(DN500), Outlet4in(DN100) ~ 36in(DN900), other size available

□ Mounted integral spring loaded water injection nozzle sepa-rately for atomized temperature control

□ Available separated PCV and Desuperheater□ Available Flanged, Butt-Weld, Other end connections



Steam Conditioning Valves Products Line-up

Part-III, Globe PCV + Desuperheater + TCV(Globe) type Neles Series GB or GM + GS + GB or GM




□ Mounted integral spring loaded water injection nozzle Sepa-rately or atomized temperature control

□ Available separated PCV and Desuperheater□ Available Flanged, Butt-Weld, Other end connections□ The phantom lines (Piping, Flange, Bolts/Nuts, Gasket, etc.) are

not Metso supply scope.

Part-IV, Globe PCV + Desuperheater + TCV(Angle) type Neles Series GB or GM + GS + AB or AM




□ Mounted integral spring loaded water injection nozzle Sepa-rately or atomized temperature control

□ Available separated PCV and Desuperheater□ Available Flanged, Butt-Weld, Other end connections


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Steam Conditioning Valves Products, Trim & Nozzle

Effective atomizing ; wide spray nozzle design applicable, such as 'water jet type' and 'integral spring loaded injection type'

Neles series: GM + GSGlobe PCV + Desuperheater

Neles series AS: Angle steam conditioning valveCombination with Pressure & Temp. control

The valve is equipped steam velocity control trim, such as Tendril (multi drilled hole),Omega trim (labyrinth multi flow path) depending on the required pressure drop

Water spray: 5bar Water spray: 10bar



AS, Applications guide

Temperature range & seat leakage class with different bonnet & seat applications

* Standard leakage class will be IV, comprised of metal seat with metal or graphite seals.

* Optional leakage class V (TSO) is available by using pilot trim

AS, Seal-ring applications

* Others: 'Y' sign, please contact Metso

Temperature range with different bodyand stud/nut materials

* Please contact Metso

Trim materials

* Please contact Metso* Disk materials are 420J2 SS & Inconel 718 applicable.

* Other materials are applicable.

Gasket applications


AS, Packing applications


Flow direction

Rated Cv (Spray Nozzle)

Rated Cv and trim table (Angle Steam Conditioning, Combination Type, Series AS)

NOTE* Rated Cv is applied differently depending on the trim type & trim characteristic.* Srk. & number in bracket means the valve stroke.

Valve SizeDN / Inch

ASMERating

SeatType

Temp. Range (°C) Seat Leakage class(ANSI B 16.104)

Extension BonnetStandard Optional

25 / 1~

400 / 16

150~

600

MetalSeat ~ +425 IV* V*

25 / 1~

400 / 16

900~

1500

MetalSeat ~ +593 IV* V*

25 / 1~

400 / 162500 Metal

Seat ~ +593 IV* V*

Seal ring Application Temp. Range (°C) Sign

Graphite -29 ~ +593 F

Metal C-seal ring -29 ~ +593 C

Metal ring -29 ~ +593 M

Body / Bonnet Application Stud / Nut ApplicationTemp. Range

(°C)Sign

Carbon steel(WCB, A105)

ASTM A193-B7 STUDASTM A194-2H NUT ~ +425 A

Stainless steel(CF3, CF8,CF3M, CF8M)

ASTM A193-B7 STUDASTM A194-2H NUT ~ +538 A

ASTM A193-B8 STUDASTM A194-8 NUT ~ +538 B

Cr.Mo. Steel(WC6, F11, WC9, F22, C12A, F91)

ASTM A193-B16 STUDASTM A194-4 NUT ~ +593 *

AS, Trim Temp. Range(°C)

SignPlug Stem Seat Cage / Disk

420 J2 Inconel 718 420 J2 420 J2 ~ +425 *

Inconel 625, 718, 750 ~ +645 *

Body / Bonnet Material Gasket MaterialTemp. Range

(°C)Sign

Carbon steel(WCB, A105)

S/W (Spiral Wound)316SS + Graphite ~ +425 S

Stainless steel(CF3, CF8,CF3M, CF8M)

S/W (Spiral Wound)316SS + Graphite ~ +425 S

Cr.Mo. Steel(WC6, F11, WC9, F22,

C12A, F91)

S/W (Spiral Wound)316SS + Graphite +

Non Asbestos~ +593

H

S/W (Spiral Wound)316 SS + Graphite + Mica

(special Hi-Temp. max 950°C)*

Packing ApplicationsTemp. Range

(°C)Sign

Graphite (with Mold + Braided) -29 ~ +425 F

Hi-Graphite (with Mold + Braided) -29 ~ +593 H

Flow to Close

Standard Cage / OMEGA Trim o

Pilot Plug Trim o

Nozzle Table

Description Rated Cv

N1.0 1

N1.5 1.5

N3.0 3

N5.0 5

N8.0 8

20.

TRIM TYPE

21.

TRIM CHARACTERISTIC

22. RATED Cv

Sign Sign Sign DescriptionBody Size and Stroke

2" Srk. 3" Srk. 4" Srk. 6" Srk. 8" Srk. 10" Srk. 12" Srk. 14" Srk. 16" Srk.

A Balanced plug type L Linear FT Tendril 1 stage / Full capacity 32 (40) 78 (50) 156 (50) 310 (60) 540 (80) 700 (90) 1150 (120) 1450 (140) 1900 (160)

P Pilot balanced plug type Q Quick opening 1T Tendril 1 stage / 1-Step reduction 14 (40) 34 (50) 84 (50) 170 (60) 340 (80) 500 (90) 850 (120) 1100 (140) 1500 (160)

FM Tendril 2 stage / Full capacity 28 (40) 64 (50) 128 (50) 196 (60) 320 (80) 436 (90) 760 (120) 980 (140) 1200 (160)

1M Tendril 2 stage / 1-Step reduction 24 (40) 42 (50) 56 (50) 88 (60) 144 (80) 196 (90) 342 (120) 440 (140) 540 (160)

FG OMEGA / Full capacity 26 (40) 54 (50) 84 (50) 146 (60) 252 (80) 384 (90) 560 (120) 770 (140) 1020(160)

1G OMEGA / 1-Step reduction 12 (40) 28 (50) 52 (50) 90 (60) 156 (80) 234 (90) 340 (120) 470 (140) 624 (160)



E Equal % FT Tendril 1 stage / Full capacity 28 (40) 70 (50) 146 (50) 280 (60) 490 (80) 600 (90) 950 (120) 1200 (140) 1500 (160)

1T Tendril 1 stage / 1-Step reduction 12 (40) 30 (50) 76 (50) 160 (60) 310 (80) 450 (90) 800 (120) 1000 (140) 1250 (160)



FG OMEGA / Full capacity 18 (40) 38 (50) 60 (50) 104 (60) 176 (80) 268 (90) 390 (120) 540 (140) 710 (160)




Y Special Y Special YY Special Contact Metso for Cv details


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AS, Components and materials

Body materials: Alloy steeel

Note.1. Plug/Seat Hard Facing(Cobalt based alloy) are available2. Materials description

316 SS : ASTM A276 TP316 or JIS 316 St. Steel410 SS : ASTM A276 TP410 or JIS 410 St. Steel420(J2) SS : ASTM A276 TP420 or JIS 420J2 St. Steel

3. Above standard materials to be applicable depending on specific service conditions, other optional materials to consult Metso.

4. Optional materials to meet to requirements of NACE MR 01-75 are available5. The materials are subject to change as equivalent depending on detail design

87a

87

84

83

86

88

85

82

Detail 'a'

'a'

89c

89d

89e

89b

89a

16

9a

69

67

21

13

65

81

64

17

80

8

14

9b

18

6

19a

19

63 7

1

65a

25

3

82

92

91

90

5

0496 II 2 GD

235 Cheomdansaneop 1-ro, Daesowon-myeon,Chungju-si, Chungcheongbuk-do, KoreaMetso Korea Co., Ltd.

Part no. Description Material

1 Body A182 F91

5 Stem Inconel 718

6 Plug Pin 316 stainless steel

7 Seat Ring A182 F91

8 Bonnet A182 F91

9a Gland 304 stainless steel

9b Gland Flange A351 CF8

13 Stud A193 Gr.B16

14 Stud A193 Gr.B8

16 Cage Guide A182 F91

17 Hexagon Nut A194 Gr.4

18 Hexagon Nut A194 Gr.8

19 Identification Plate 304 stainless steel

19a Rivet 304 stainless steel

21 Lantern Ring 304 stainless steel

25 Disk Stack Inconel 718

63 Seat Gasket S/W Gasket, 316 SS + Graphite + Hi-Temp

64 Seal Ring Ductile

65 Body Gasket S/W Gasket, 316 SS + Graphite + Hi-Temp

65a Body Gasket S/W Gasket, 316 SS + Graphite + Hi-Temp

67 Packing Spacer 304 stainless steel

69 Packing Ring Graphite

71 Pilot Main Plug 420(J2) stainless steel


73 Pilot Plug 420(J2) stainless steel

74 Pilot Cover 420(J2) stainless steel

75 Pilot Bolt A193 Gr.B16

76 Pilot Wire Inconel 625

77 Pilot Spring Inconel 718

80 Desuperheater Housing A335 P91

81 Diffuser A182 F91

82 Liner A335 P22

83 Spray Body A182 F22

84 Spray Cover A182 F22

85 Packing Ring Graphite with mold + braided

86 Spray Gasket S/W Gasket, 316 SS + Graphite

87 Stud A193 Gr.B7

87a Hexagon Nut A194 Gr.2H

88 Spray Retainer 420(J2) stainless steel

89a Nozzle Plug 420(J2) stainless steel

89b Nozzle Seat 420(J2) stainless steel

89c Nozzle Spring Inconel 718

89d Lock Nut 304 stainless steel

89e Spring Seat 304 stainless steel

90 Pipe Socket A182 F22

91 Spray Pipe A335 P22

92 Spray Tee A182 F22



GS, Components and materials

Body materials: Alloy steel

Note.1. Available PCV type : Globe Balanced, Globe Omega, and other types to consult

Metso.2. Materials description

316 SS : ASTM A276 TP316 or JIS 316 St. Steel420(J2) SS : ASTM A276 TP420 or JIS 420J2 St. Steel

3. Above standard materials to be applicable depending on specific service conditions, other optional materials to consult Metso.

4. Optional materials to meet to requirements of NACE MR 01-75 are available5. The materials are subject to change as equivalent depending on detail design

93

89d

89c89a

89b

94a

94

96

96a

95

97

80

89

82

'b'

Detail 'a'

Marking

'a'

Detail 'b'

GB or GM, Globe PCV GS, Desuperheater


80 Desuperheater Housing A335 P22

82 Liner A335 P22

89 Spray Nozzle 420(J2) stainless steel

89a Nozzle Plug 420(J2) stainless steel

89b Nozzle Seat 420(J2) stainless steel

89c Nozzle Spring Inconel 718

89d Lock Nut 304 stainless steel

93 Flange Gasket S/W Gasket, 316 SS + Graphite

94 Stud A193 Gr.B7


95 Housing Bonnet A182 F22

96 Stud A193 Gr.B7


97 Flange gasket S/W Gasket, 316 SS + Graphite


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Actuator dimensions

VD Diaphragm actuators

(UNIT: mm)

NOTE1. "Br" refers to reverse acting actuator, VDR2. "Bd" refers to direct acting actuator, VDD

*Note.1. Body dimensions Metso will submit the 'body dimensions Dwg.', when quote or approval stage2. Actuator applications Metso applicable various actuators to meet to accurate control through the Pneumatic diaphragm, Pneumatic cylinder, Electronic motor, Hydraulic cylinder

with Hydraulic Power Unit.

Without handwheel With handwheel

Size A2 Bd Br Weight (kg) A2 Bd Br A3 Bh Weight (kg)

#25 255 348 373 12 255 348 373 312 170 22

#29 295 391 416 18 295 391 416 312 182 28

#37 375 464 489 28 375 464 489 342 201 43

#48 486 652 677 86 486 652 677 464 244 119

#55 566 695 720 112 566 695 720 464 244 145

VDD,Direct action VDR,Reverse action Side handwheel Side handwheel

Bd/B

r

Bh

A2 A3

Bd

A2

Br

A2

0

100

255075

CLOSE

OPEN

0

100

255075

CLOSE

OPEN

0 TECHNICAL BULLETIN 7/15


Actuator dimensions

VC actuators without handwheel

(UNIT : mm)

(UNIT : mm)

Note:B1 : without volume chamberB2 : with volume chamber

Stroke (mm)

#30

Stroke (mm)

#40

Stroke (mm)

#50ØC 370 ØC 460 ØC 560B1 Weight(kg) B1 Weight (kg) B1 Weight(kg)B2 A B B2 A B B2 A B

40640

92 115 40810

120 148 40810

186 234760 935 935

50650

94 118 50820

123 152 50820

189 237790 965 965

60660

97 121 60830

126 155 60830

192 242820 995 995

70670

100 124 70840

128 159 70840

195 246850 1025 1025

80680

103 127 80850

131 162 80850

198 251880 1055 1055

90690

106 130 90860

134 166 90860

201 256910 1085 1085

100700

108 133 100870

137 173 100870

203 261940 1115 1115

120720

114 139 120890

142 177 120890

209 2701000 1175 1175

140910

148 184 140910

215 2791235 1235

180950

159 198 180950

227 2981355 1355

Stroke (mm)

#60

Stroke (mm)

#70

Stroke (mm)

#80ØC 660 ØC 710 ØC 820B1 Weight(kg) B1 Weight (kg) B1 Weight (kg)B2 A B B2 A B B2 A B

100954

255 344 100955

322 438 100954

378 5191199 1203 1207

120974

262 355 120975

330 450 120974

386 5311259 1263 1267

140994

269 365 140995

338 461 140994

394 5431319 1323 1327

1801034

283 386 1801035

354 484 1801034

410 5671439 1443 1447

2401094

303 417 2401095

377 518 2401094

435 6041619 1623 1627

2801134

451 6281747

A B

VC, without volume chamber VC, with volume chamber

B2

ØC

ØC


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Actuator dimensions

VC actuators with handwheel

VC actuators with handwheel

(UNIT : mm)

(UNIT : mm)

Note:B1 : without volume chamberB2 : with volume chamber

Stroke (mm)

#30

Stroke (mm)

#40

Stroke (mm)

#50ØC 370 ØC 460 ØC 560B1 Weight(kg) B1 Weight(kg) B1 Weight(kg)B2 A B B2 A B B2 A B

40930

134 157 401095

180 208 401095

246 2941055 1220 1220

50940

137 160 501105

183 212 501105

249 2991085 1250 1250

60950

139 163 601115

186 215 601115

252 3031115 1280 1280

70960

142 167 701125

188 219 701125

255 3081145 1310 1310

80970

144 170 801135

191 222 801135

258 3131175 1340 1340

90980

147 173 901145

194 226 901145

261 3181205 1370 1370

100990

150 176 1001155

197 230 1001155

263 3221235 1400 1400

1201010

155 183 1201175

202 237 1201175

269 3321295 1460 1460

1401195

208 244 1401195

275 3411520 1520

1801235

219 258 1801235

287 3601640 1640

Stroke (mm)

#60

Stroke (mm)

#70

Stroke (mm)

#80ØC 660 ØC 710 ØC 820B1 Weight(kg) B1 Weight(kg) B1 Weight(kg)B2 A B B2 A B B2 A B

1001239

315 404 1001240

368 502 1001289

438 5791484 1488 1542

1201259

322 415 1201260

376 514 1201309

446 5911544 1548 1602

1401279

329 425 1401280

384 525 1401329

454 6031604 1608 1662

1801319

343 446 1801320

400 548 1801369

470 6271724 1728 1782

2401379

363 477 2401380

423 582 2401429

495 6641904 1908 1962

2801469

511 6882082

A B

VC, with optional handwheel VC, with optional handwheel & volume chamber

B1

B2

ØC

ØC



HOW TO ORDER

Angle Steam Conditioning, Combination Type, Series AS

VALVE CONSTRUCTIONS

TRIM CONSTRUCTIONS

OTHERS

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22.

AS JL H Q E DK G P2 X VH S1 D1 X S F F H H X A L FG

1. VALVE SERIES

AS Angle steam conditioning, Combination type

2. BODY SIZE ( INLET X OULET )

2a INLET SIZE 2b OUTLET SIZE

E 2" / DN 50 E 2" / DN 50

G 3" / DN 80 G 3" / DN 80

H 4" / DN 100 H 4" / DN 100

J 6" / DN 150 J 6" / DN 150

K 8" / DN 200 K 8" / DN 200

L 10" / DN 250 L 10" / DN 250

M 12" / DN300 M 12" / DN 300

N 14" / DN 350 N 14" / DN 350

P 16" / DN 400 P 16" / DN 400

Q 18" / DN 450 Q 18" / DN 450

R 20" / DN 500 R 20" / DN 500

S 24" / DN 600 S 24" / DN 600

T 28" / DN 700 T 28" / DN 700

U 32" / DN 800 U 32" / DN 800

V 36" / DN 900 V 36" / DN 900

Y Special Y Special

3. PRESSURE RATING

C ASME Class 150 D ASME Class 300

F ASME Class 600 G ASME Class 900

H ASME Class 1500 I ASME Class 2500

A ASME Class 4500 Y Special

4. END CONNECTION

W Flanged RF, ASME B16.5

Q Butt welding, ASME B16.25

Z Ring joint flange, ASME B16.5

Y Special

5. BONNET CONSTRUCTION

E Extension

Y Special

6. BODY & BONNET MATERIAL

BX A182 gr. F11 CH A182 gr. F22

DK A182 gr. F91 YY Special

7. SPRAY NOZZLE CONSTRUCTION

F 2-Spray nozzle Cv 2 G 2-Spray nozzle Cv 3

H 2-Spray nozzle Cv 6 J 2-Spray nozzle Cv 10

K 2-Spray nozzle Cv 16 Y Special

8. PLUG MATERIAL

DK A182 gr. F91

P2 SUS 420J2

YY Special

9. PLUG APPLICATION

X Not applicable

A Cobalt based alloy

Y Special

10. STEM MATERIAL

VH Inconel 718

YY Special

11. SEAT TYPE

S1 Single metal seat

YY Special

12. SEAT / CAGE / DISK STACK MATERIAL

Seat Cage Disk Stack

D1 A182 gr. F91 - Inconel 718

P2 SUS 420J2 SUS 420J2 SUS 420J2

YY Special Special Special

13. SEAT APPLICATION

X Not applicable

A Cobalt based alloy

Y Special

14. PACKING TYPE

S Standard packing

Y Special

15. PACKING MATERIAL

F Graphite (with mold and braided)

H Hi-Graphite (with mold and braided)

Y Special

16. SEALS MATERIAL

F Graphite

C Metal C-seal ring

M Metal (Ductile)

Y Special

17. GASKET MATERIAL

H S/W gasket type, 316 SS + Graphite for high temp.

M S/W gasket type, 316 SS + Graphite for extreme temp.

Y Special

18. STUD / NUT MATERIAL

H A193 gr. B16 / A194 gr. 4

Y Special

19. OPTIONS

X Not applicable Y Special


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TRIM TYPE & RATED Cv

* Rated Cv is applied differently depending on the trim type & trim characteristic.* Srk. & number in bracket means the valve stroke.

20.

TRIM TYPE

21.TRIM

CHARACTERISTIC

22. RATED Cv

Sign Sign Sign DescriptionBody Size

2" Srk. 3" Srk. 4" Srk. 6" Srk. 8" Srk. 10" Srk. 12" Srk. 14" Srk. 16" Srk.

A Balanced plug type L Linear FT Tendril 1 stage / Full capacity 32 (40) 78 (50) 156 (50) 310 (60) 540 (80) 700 (90) 1150 (120) 1450 (140) 1900 (160)

P Pilot balanced plug type Q Quick opening 1T Tendril 1 stage / 1-Step reduction 14 (40) 34 (50) 84 (50) 170 (60) 340 (80) 500 (90) 850 (120) 1100 (140) 1500 (160)







E Equal % FT Tendril 1 stage / Full capacity 28 (40) 70 (50) 146 (50) 280 (60) 490 (80) 600 (90) 950 (120) 1200 (140) 1500 (160)

1T Tendril 1 stage / 1-Step reduction 12 (40) 30 (50) 76 (50) 160 (60) 310 (80) 450 (90) 800 (120) 1000 (140) 1250 (160)







Y Special Y Special YY Special Contact Metso for Cv details



HOW TO ORDER

Desuperheater for Globe type, Series GS

PRODUCT

HOUSING CONSTRUCTION

OTHERS

1. 2. 3. 4. 5. 6. 7. 8.

GS JL D W S CM C N

1. VALVE SERIES

GS Desuperheater for Globe type

2. BODY SIZE ( INLET X OULET )

2a INLET SIZE 2b OUTLET SIZE

C 1" / DN 25 C 1" / DN 25

D 1-1/2" / DN 40 D 1-1/2" / DN 40

E 2" / DN 50 E 2" / DN 50

G 3" / DN 80 G 3" / DN 80

H 4" / DN 100 H 4" / DN 100

J 6" / DN 150 J 6"/ DN 150

K 8" / DN 200 K 8"/ DN 200

L 10" / DN 250 L 10" / DN 250

M 12"/ DN 300 M 12" / DN 300

N 14" / DN 350 N 14"/ DN 350

P 16"/ DN 400 P 16" / DN 400

Y Special Y Special

3. PRESSURE RATING

C ASME Class 150 D ASME Class 300

F ASME Class 600 G ASME Class 900

H ASME Class 1500 I ASME Class 2500

A ASME Class 4500 Y Special

4. END CONNECTION

W Flanged RF, ASME B16.5

V Socket welding, ASME B16.11

Q Butt welding, ASME B16.25

Z Ring joint flange, ASME B16.5

Y Special

5. HOUSING CONSTRUCTION

S Desuperheater with Straight housing

N Desuperheater with Angle housing

D Desuperheater only

Y Special

6. HOUSING MATERIAL

BX A335 gr. P11 CM A335 gr. P21

DK A335 gr. P91 XX Not applicable

YY Special

7. SPRAY NOZZLE CONSTRUCTION

A 1-Spray nozzle Cv 1 L 3-Spray nozzle Cv 3

B 1-Spray nozzle Cv 1.5 M 3-Spray nozzle Cv 4.5

C 1-Spray nozzle Cv 3 N 3-Spray nozzle Cv 9

D 1-Spray nozzle Cv 5 P 3-Spray nozzle Cv 15

E 1-Spray nozzle Cv 8 Q 3-Spray nozzle Cv 24

F 2-Spray nozzle Cv 2 R 4-Spray nozzle Cv 4

G 2-Spray nozzle Cv 3 S 4-Spray nozzle Cv 6

H 2-Spray nozzle Cv 6 T 4-Spray nozzle Cv 24

J 2-Spray nozzle Cv 10 U 4-Spray nozzle Cv 40

K 2-Spray nozzle Cv 16 V 4-Spray nozzle Cv 64

Y Special

8. OPTION

X Not applicable

N Liner for Desuperheater

Y Special


Metso Flow Control Inc.South Korea, 235 Cheomdansaneop 1-ro, Daesowon-myeon, Chungju-si, Chungbuk-do, 380-871, Korea. Tel. +82 43 852 7708. Fax +82 43 841 9890

Europe, Vanha Porvoontie 229, P.O. Box 304, FI-01301 VANTAA, Finland.Tel. +358 20 483 150. Fax +358 20 483 151North America, 44 Bowditch Drive, P.O. Box 8044, Shrewsbury, MA 01545, UTel. +1 508 852 0200. Fax +1 508 852 8172South America, Av. Independéncia, 2500- Iporanga, 18087-101, Sorocaba-STel. +55 15 2102 9700. Fax +55 15 2102 9748/49Asia Pacific, Haw Par Centre #06-01, 180 Clemenceau Avenue, Singapore 23Tel. +65 6511 1011. Fax +65 6250 0830China, 11/F, China Youth Plaza, No.19 North Rd of East 3rd Ring Rd, ChaoyanBeijing 100020, China. Tel. +86 10 6566 6600. Fax +86 10 6566 2583 Middle East, Roundabout 8, Unit AB-07, P.O. Box 17175, Jebel Ali Freezone, DUnited Arab Emirates. Tel. +971 4 883 6974. Fax +971 4 883 6836

www.metso.com/valves

Subject to change without prior notice.

SA.

ão Paulo, Brazil.

9922.

g District,

ubai,

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