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Cryogenic gate valve

Cryogenic gate valve

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Gate Valve
Describe
The American standard bellows gate valve is suitable for cutting or connecting the pipeline medium on the pipelines of various working conditions such as petroleum, chemical, pharmaceutical, fertilizer and electric power industries with a nominal pressure of CLASS150~900LBS and a working temperature of -29~350°C.
The main structural features of the American standard bellows gate valve: reasonable product structure, reliable sealing, excellent performance and beautiful appearance; Co-based hard alloy, wear-resistant, corrosion-resistant, anti-friction performance and long service life; Tempering and surface nitriding treatment, good corrosion resistance and anti-friction performance; double seal, more reliable performance; valve stem lifting position indication, more intuitive; part material and flange, butt weld end size can be based on actual working conditions or Users require reasonable matching to meet various engineering needs.
 
■Features: Double bellows, easy maintenance, double seal, position indication
■Applications: power station, natural gas, ammonia, vacuum, refrigeration system, hot oil system, hot water
 
■The valve adopts the standard:
Design and manufacturing standards: GB12234, API6D;
Structure length standard: GB1221, ANSI B16.10;
Flange standard: JB79, ANSI B16.5;
Inspection test standard: GB12937, API 598
 
American standard bellows gate valve main parts material
Serial number name Material
1 Valve body ASTM A216-WCB ASTM A217-WC1、WC6、WC9、C5 ASTM A351-CF8、CF8M、CF3、CF3M
2 Valve plate ASTM A182-Gr.F6a ASTM A182-F22 ASTM A182-F304、F316、F321、F304L、F316L
3 Valve stem ASTM A182-Gr.F6a ASTM A182-F22 ASTM A182-F304、F316、F321、F304L、F316L
4 Gasket Flexible graphite + stainless steel
5 Stud ASTM 193-B7、A320-B8、A193-B8M
6 Hex nuts ASTM A194-2H、A194-8、A194-8M
7 cap ASTM A216-WCB ASTM A217-WC1、WC6、WC9、C5 ASTM A351-CF8、CF8M、CF3、CF3M
8 Bellows assembly ASTM A182-F304、F316、F321、F304L、F316L
9 filler Flexible graphite
10 Packing gland ASTM A216-WCB ASTM A217-WC1、WC6、WC9、C5 ASTM A351-CF8、CF8M、CF3、CF3M
11 supportsupport ASTM A216-WCB ASTM A217-WC1、WC6、WC9、C5 ASTM A351-CF8、CF8M、CF3、CF3M
12 Stem nut Copper alloy
13 Hand wheel ASTM A536 Gr.60-40-18、A216-WCB

 

American standard bellows gate valve technical specifications

structure type BB-BG-OS  Y
Drive mode Manual
electric
design standards API1600、API6D
Structure length ASME B16.10
Connection flange ASME B16.5
Test and inspection API598、API6D

 

American Standard Bellows Gate Valve Product Performance Specification

 

Nominal pressure (LB) Shell test pressure (MPa) Seal test pressure (MPa) Applicable temperature (°C) Using media
150 3.0 2.2 ≤350℃ Water, steam, oil, etc.
300 7.5 5.5
600 15.0 11.0
900 22.5 16.5

 

American standard bellows gate valve connection size and weight 150LB

model WZ41-150LB
pressure
grade
150LB
caliber mm 15 20 25 32 40 50 65 80 100 125 150 200 250 300
in 1/2 3/4 1 11/4 11/2 2 21/2 3 4 5 6 8 10 12
L 108 117 127 140 165 178 190 203 229 254 267 292 330 356 381
H 200 210 250 260 290 370 398 440 490 530 580 670 760 850 950
W 120 140 140 180 200 220 260 280 300 340 400 450 450 500 500
weight(kg) 8 9 10 15 22 30 42 55 70 100 140 180 250 350 450

 

American standard bellows gate valve connection size and weight 300LB

model YDAWZ41-300LB
pressure
grade
300LB
caliber mm 15 20 25 32 40 50 65 80 100 125 150 200 250 300
in 1/2 3/4 1 11/4 11/2 2 21/2 3 4 5 6 8 10 12
L 140 152 165 178 190 216 241 283 305 381 403 419 457 502 762
H 300 210 250 260 290 370 398 440 490 530 580 670 760 850 980
W 120 140 140 180 200 220 260 280 300 340 400 450 450 500 500
Weight (kg) 9 10 12 18 25 38 53 70 88 125 175 225 310 440 560

 

American standard bellows gate valve connection size and weight 600LB

model WZ41-600LB
pressure
grade
600LB
caliber mm 15 20 25 32 40 50 65 80 100 125 150 200 250 300
in 1/2 3/4 1 11/4 11/2 2 21/2 3 4 5 6 8 10 12
L 165 190 216 229 241 292 330 356 432 508 559 660 787 838 889
H 200 210 250 260 290 370 398 440 490 530 580 670 760 850 980
W 120 140 140 180 200 220 260 280 300 340 400 450 450 500 500
Weight (kg) 11 13 16 24 32 50 70 90 105 165 230 300 400 570 730