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Name:Cryogenic gate valve

 

 

Feature

Bolted bonnet, threaded or welded seat ring,
full bore, OS&Y, rising stem, flexible wedge
pressure relief hole on seat, stainless trim

Body Material
ASTM A352 LCB,LC1,LC2,LC3,LC4, A351 CF8,A351 CF8M

Standards compliance
Design and Manufacture: API 600,API 6D,BS1414
Face to face (end to end): ANSI B16.10,API 6D
Flanged connection: 2~~24~to ANSI B16.5
Butt welded end: ANSI B16.25
Test and inspection: API 598,API 6D

 

 

Material specification

NO Part Name Material
LCB CF8 CF8M CF3 CF3M
1 Body A352 LCB A351 CF8 A351 CF8M A351 CF3 A351 CF3M
2 Seat Ring A350 LF2 A182 F304 A182 F316 A182 F304L A182 F316L
3 Wedge disc A352 LCB A351 CF8 A351 CF8M A351 CF3 A351 CF3M
4 Stem A182 F304 A182 F304 A182 F316 A182 F304L A182 F316L
5 Bonnet Bolt A193 B7 A320 L7 A193 B16 A193 B8
6 Bonnet Nut 194 2H A194 4 A194 7 A194 8
7

Gasket

F304+ flexible graphite
8 Bonnet A352 LCB A351 CF8 A351 CF8M A351 CF3 A351 CF3M
9 Back sealing seat A182 F6a A182 F304 A182 F316 A182 F304L A182 F316L
10 Packing Flexible Graphite
11 Spacer Ring A182 F6a A182 F304 A182 F316 A182 F304L A182 F316L
12 Pin Carbon steel or Alloy steel
13 Eyelet bolt A307B A307 L7 A193 B7 A193 B8
14 Gland Nut A194 4 A194 8
15 Packing gland A182 F6a A182 F304 A182 F316 A182 F304L A182 F316L
16 Packing pressboard A352 LCB A351 CF8 A351 CF8M A351 CF3 A351 CF3M
17 Oil cup Copper or Carbon steel or Stainless steel
18 Yoke nut A439D2 ZCuAl10Fe3(GB STD)
19 Bearing gland Carbon steel or Alloy steel
20 Handwheel Ductile iron or Carbon steel
21 Lock Nut Carbon steel or Alloy steel
Sealing face STL/304
Dimension and weight
Class 150Lb
DN
NPS
20
3/4
25
1
32
1 1/4
40
1 1/2
50
2
65
2 1/2
80
3
100
4
150
6
200
8
250
10
300
12
350
14
400
16
450
18
500
20
L 117
4.6
127
5
140
5.5
165
6.5
178
7
190
7.5
203
8
229
9
267
10.5
292
11.5
330
13
356
14
381
15
406
16
432
17
457
18
H (open) 320
13
350
13.8
385
15.1
420
16.5
540
21.3
610
24
690
27
780
30.7
930
36.6
980
38.6
1180
46.5
1390
54.7
1620
63.8
1810
71.3
1970
77.5
21460
84.5
Wt(Kg) 6 8 9 15 22 26 39 50 69 85 132 182 266 420 550 710

Class 300Lb
DN
NPS

20
3/4

25
1
32
1 1/4
40
1 1/2
50
2
65
2 1/2
80
3
100
4
150
6
200
8
250
10
300
12
350
14
400
16
450
18
500
20
L 152
6
165
6.5
178
7
190
7.5
216
8.5
241
9.5
283
11.1
305
12
403
15.8
419
16.5
457
18
502
19.8
762
30
838
33
914
36
991
39
H (open) 330
13
360
14.1
400
15.7

455
17.6

575
22.6
635
25
715
28
815
32
965
38
1025
40
1225
48.2
1440
56.7
1665
65.5
1880
74
2050
80.7
2248
88.5
Wt(Kg) 7 9 11 19 29 37 52 78 116 138 218 288 410 605 750 915

Class 600Lb
DN
NPS

20
3/4

25
1
32
1 1/4
40
1 1/2
50
2
65
2 1/2
80
3
100
4
125
5
150
6
200
8
250
10
300
12
350
14
400
16
L 190
7.5
216
8.5
229
9
241
9.5
292
11.5
330
13
356
14
432
17
508
20
559
22
660
26
787
31
838
33
889
35
990.5
39
H (open) 335
13.1
365
14.3
420
16.5

500
19.7

630
25
700
27.5
760
30
900
35
990
39
1070
42
1280
50
1500
59
1740
68.5
1994
78.5
2273
Wt(Kg) 12 17 26 32 44 58 75 125 187 260 384 502 705 1006 1388
The dimension for handwheel and flange is the same as cast steel gate valves.
 
  
Copyright © Sanming High and Medium Pressure Valve Co.Ltd.   
Address: 18F,Guolian Building,Taiwan Street,Xiamen,361006,P.R.China
Tel:(86-592) 2686373 Fax:(86-592) 3299802   http://www.sfvalve.com.cn
Factory Address: East Jin-ming Road, Jinsha Park, New High-tech Industry Zone, Sanming City, Fujian Province, China.
Tel: (86-598)-8332050