-
E-mail
shweierdun@163.com
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Phone
1896411889715000726608
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Address
Building 4, No. 686 Nanfeng Road, Fengcheng Town, Fengxian District, Shanghai
Shanghai Wilton Valve Co., Ltd
shweierdun@163.com
1896411889715000726608
Building 4, No. 686 Nanfeng Road, Fengcheng Town, Fengxian District, Shanghai
Low temperature gate valves are suitable for low-temperature media such as methane, liquid natural gas, hexene, carbon dioxide, liquid ammonia, liquid oxygen, liquid nitrogen, and liquid hydrogen.
Product Features
1To prevent abnormal pressure rise in the middle chamber, a pressure relief hole is installed on the inlet side of the gate
2Determine the top length of the valve cover based on the working temperature of the valve to ensure the valveReliable sealing of fillers
3Reasonably select materials for fillers, gaskets, and other parts according to the working temperature
4Strictly control the chemical composition and mechanical performance indicators such as low-temperature impact toughness of materials
5Adopting various piping flange standards and sealing surface types, suitable for various engineering needs
Execution standard:
|
Design and Manufacturing |
structural length |
Flange size |
pressure-temperature |
experiment-inspection |
|
JB/T7749 |
GB12221 |
JB79 |
Gb9131 |
JB/T9092 |
Pressure test:
|
Nominal PressurePN |
1.6 |
2.5 |
4.0 |
6.4 |
10.0 |
|
strength test |
2.4 |
3.8 |
6.0 |
9.6 |
15.0 |
|
Water seal test |
1.8 |
2.8 |
4.4 |
7.0 |
11.0 |
|
Upper Seal Test |
1.8 |
2.8 |
4.4 |
7.0 |
11.0 |
|
gas tightness test |
0.4-0.7 |
||||
Main component materials and performance:
|
Body cover plate |
valve stem |
sealing surface |
shim |
filler |
Operating Temperature |
Applicable Medium |
|
ZGoCrMNVAILow temperature and high pressure cast steel |
1Cr7Ni12 |
STL/STL |
1Cr13/flexible graphite |
PTFEImmersed in polytetrafluoroethylene |
-46 |
propane/Bingene |
|
LCB |
||||||
|
ZGoCrMNVAILow temperature and high pressure cast steel |
-60 |
|||||
|
LC1 |
||||||
|
ZGoCrMNVAILow temperature and high pressure cast steel |
-73 |
|||||
|
LC2 |
||||||
|
ZGoCrMNVAILow temperature and high pressure cast steel |
1Cr18Ni9Ti |
-101 |
||||
|
LC3 |
||||||
|
ZGoCrMNVAILow temperature and high pressure cast steel |
-115 |
|||||
|
LC4 |
||||||
|
ZGoCrMNVAILow temperature and high pressure cast steel |
-196 |
|||||
|
|
Main dimensions of low-temperature flange gate valve specifications(PN1.6MPa-2.5 MPa):
|
1.6MPa |
DN |
L |
D |
D1 |
D2 |
b |
n-Φd |
H |
D0 |
|
Convex method |
20 |
150 |
105 |
75 |
55 |
14 |
4-Φ14 |
320 |
140 |
|
25 |
160 |
115 |
85 |
65 |
14 |
4-Φ14 |
350 |
160 |
|
|
32 |
180 |
135 |
100 |
78 |
16 |
4-Φ18 |
385 |
180 |
|
|
40 |
200 |
145 |
110 |
85 |
16 |
4-Φ18 |
420 |
220 |
|
|
50 |
250 |
160 |
125 |
100 |
16 |
4-Φ18 |
540 |
240 |
|
|
65 |
265 |
180 |
145 |
120 |
18 |
4-Φ18 |
610 |
240 |
|
|
80 |
280 |
195 |
160 |
135 |
20 |
8-Φ18 |
690 |
280 |
|
|
100 |
300 |
215 |
180 |
155 |
20 |
8-Φ18 |
780 |
300 |
|
|
125 |
325 |
245 |
210 |
185 |
22 |
8-Φ18 |
930 |
320 |
|
|
150 |
350 |
280 |
240 |
210 |
24 |
8-Φ23 |
980 |
350 |
|
|
200 |
400 |
335 |
295 |
265 |
26 |
12-Φ26 |
1180 |
400 |
|
|
250 |
450 |
105 |
355 |
320 |
30 |
12-Φ30 |
1390 |
450 |
|
|
300 |
500 |
460 |
410 |
375 |
30 |
12-Φ30 |
1620 |
500 |
|
|
350 |
550 |
520 |
470 |
435 |
34 |
16-Φ34 |
1810 |
500 |
|
|
400 |
600 |
580 |
525 |
485 |
36 |
16-Φ36 |
1970 |
550 |
|
|
2.5MPa |
20 |
150 |
105 |
75 |
55 |
16 |
4-Φ16 |
320 |
140 |
|
Convex method |
25 |
160 |
115 |
85 |
65 |
16 |
4-Φ16 |
350 |
160 |
|
32 |
180 |
135 |
100 |
78 |
18 |
4-Φ18 |
385 |
180 |
|
|
40 |
200 |
145 |
110 |
85 |
18 |
4-Φ18 |
420 |
200 |
|
|
50 |
250 |
160 |
125 |
100 |
20 |
4-Φ20 |
540 |
240 |
|
|
65 |
265 |
180 |
145 |
125 |
22 |
8-Φ22 |
510 |
240 |
|
|
80 |
280 |
195 |
160 |
135 |
22 |
8-Φ22 |
690 |
280 |
|
|
100 |
300 |
230 |
190 |
160 |
24 |
8-Φ24 |
780 |
300 |
|
|
125 |
325 |
270 |
220 |
188 |
28 |
8-Φ28 |
930 |
300 |
|
|
150 |
350 |
300 |
250 |
218 |
30 |
8-Φ30 |
980 |
320 |
|
|
200 |
400 |
360 |
310 |
278 |
34 |
12-Φ34 |
1180 |
360 |
|
|
250 |
450 |
425 |
370 |
332 |
36 |
12-Φ36 |
1390 |
400 |
|
|
300 |
500 |
485 |
430 |
390 |
40 |
16-Φ40 |
1620 |
450 |
|
|
350 |
550 |
550 |
490 |
448 |
44 |
16-Φ44 |
1810 |
500 |
|
|
400 |
600 |
610 |
550 |
505 |
48 |
16-Φ48 |
1990 |
560 |
Main dimensions of low-temperature flange gate valve specificationsPN4.0MPa-10.0MPa:
|
4.0 MPa |
DN |
L |
D |
D1 |
D2 |
D6 |
b |
n-Φd |
H |
D0 |
|
Concave method |
20 |
150 |
105 |
75 |
55 |
51 |
16 |
4-Φ14 |
330 |
140 |
|
25 |
160 |
115 |
85 |
65 |
58 |
16 |
4-Φ14 |
360 |
160 |
|
|
32 |
180 |
135 |
100 |
78 |
66 |
18 |
4-Φ18 |
440 |
180 |
|
|
40 |
200 |
145 |
110 |
85 |
76 |
18 |
4-Φ18 |
455 |
200 |
|
|
50 |
250 |
160 |
125 |
100 |
88 |
20 |
4-Φ18 |
575 |
240 |
|
|
65 |
380 |
180 |
145 |
120 |
110 |
22 |
4-Φ20 |
635 |
240 |
|
|
80 |
3103 |
195 |
160 |
135 |
121 |
22 |
8-Φ22 |
715 |
280 |
|
|
100 |
50 |
230 |
190 |
160 |
150 |
24 |
8-Φ22 |
815 |
300 |
|
|
125 |
400 |
270 |
220 |
188 |
176 |
28 |
8-Φ24 |
965 |
360 |
|
|
150 |
450 |
300 |
250 |
218 |
204 |
30 |
8-Φ28 |
1025 |
400 |
|
|
200 |
550 |
375 |
320 |
282 |
160 |
38 |
8-Φ30 |
1225 |
450 |
|
|
250 |
650 |
445 |
385 |
345 |
313 |
42 |
12-Φ34 |
1440 |
560 |
|
|
300 |
750 |
510 |
450 |
408 |
364 |
46 |
16-Φ34 |
1665 |
5470 |
|
|
350 |
850 |
570 |
510 |
465 |
422 |
52 |
16-Φ41 |
1880 |
720 |
|
|
400 |
950 |
655 |
585 |
535 |
474 |
58 |
16-Φ18 |
2050 |
800 |
|
|
6.4MPa |
20 |
190 |
125 |
90 |
68 |
51 |
20 |
4-Φ18 |
330 |
180 |
|
Concave method |
25 |
210 |
135 |
100 |
78 |
58 |
22 |
4-Φ23 |
360 |
180 |
|
32 |
230 |
150 |
110 |
82 |
66 |
24 |
4-Φ23 |
410 |
180 |
|
|
40 |
240 |
165 |
125 |
95 |
76 |
24 |
4-Φ23 |
480 |
220 |
|
|
50 |
250 |
175 |
135 |
105 |
88 |
26 |
4-Φ23 |
585 |
240 |
|
|
65 |
280 |
200 |
160 |
130 |
110 |
28 |
8-Φ23 |
690 |
240 |
|
|
80 |
310 |
210 |
170 |
140 |
121 |
30 |
8-Φ23 |
745 |
280 |
|
|
100 |
350 |
250 |
200 |
168 |
150 |
32 |
8-Φ25 |
885 |
300 |
|
|
125 |
400 |
295 |
240 |
202 |
176 |
36 |
8-Φ30 |
985 |
360 |
|
|
150 |
450 |
340 |
280 |
240 |
204 |
38 |
8-Φ34 |
1050 |
400 |
|
|
200 |
550 |
405 |
345 |
300 |
260 |
44 |
12-Φ34 |
1240 |
450 |
|
|
250 |
650 |
470 |
400 |
352 |
313 |
48 |
12-Φ41 |
1460 |
560 |
|
|
300 |
750 |
530 |
160 |
412 |
364 |
54 |
16-Φ41 |
1670 |
5640 |
|
|
10.0MPa |
25 |
210 |
135 |
100 |
78 |
58 |
24 |
4-Φ18 |
365 |
200 |
|
Concave method |
32 |
230 |
150 |
110 |
82 |
66 |
24 |
4-Φ23 |
420 |
200 |
|
50 |
250 |
195 |
145 |
112 |
88 |
28 |
4-Φ25 |
630 |
240 |
|
|
65 |
280 |
220 |
170 |
138 |
110 |
32 |
8-Φ25 |
700 |
240 |
|
|
80 |
310 |
230 |
180 |
148 |
121 |
34 |
8-Φ25 |
760 |
280 |
|
|
100 |
350 |
265 |
210 |
172 |
150 |
38 |
8-Φ30 |
900 |
280 |