The API standard check valve produced by our company is designed and manufactured in full accordance with the United States standards, beautiful structure and advanced. American standard check valve is to rely on the flow of the medium itself and automatically open and close the valve flap, used to prevent media back to the valve, also known as check valve, check valve, counter-flow valve, its main role is to prevent media backflow, to prevent the pump And drive motor reverse, as well as the release of container media.
Product Usage
The API standard check valve produced by our company is designed and manufactured in full accordance with the United States standards, beautiful structure and advanced. American standard check valve is to rely on the flow of the medium itself and automatically open and close the valve flap, used to prevent media back to the valve, also known as check valve, check valve, counter-flow valve, its main role is to prevent media backflow, to prevent the pump And drive motor reverse, as well as the release of container media.
Performance parameters
|
Serial number |
project name |
parameter |
|||||
|
1 |
Nominal pressurePN（MPa) |
150LB |
300LB |
600LB |
900LB |
1500LB |
2500LB |
|
2.0 |
5.0 |
10.0 |
15.0 |
25.0 |
42.0 |
||
|
2 |
Shell strength test pressure |
Nominal pressure at room temperature 1.5 times |
|||||
|
3 |
High pressure seal test pressure |
Nominal pressure at room temperature 1.1 times |
|||||
|
4 |
Working pressure at room temperature |
Press the ASME B16.34 pressure and temperature rating |
|||||
Product specifications
|
design standards |
Structure length |
Flange connection size |
Test and inspection |
Pressure and temperature reference |
|
API6D/ASME B16.34 |
ASME B16.10 |
ASME B16.5 |
API598/API6D |
ASME B16.34 |
The main part material
|
Part Name |
Material name |
|||||
|
Body |
A216 WCB |
A217 WC6 |
A351 CF8 |
A351 CF8M |
A351 CF3 |
A351 CF3M |
|
cap |
A216 WCB |
A217 WC6 |
A351 CF8 |
A351 CF8M |
A351 CF3 |
A351 CF3M |
|
Valve plate |
A216 WCB |
A217 WC6 |
A351 CF8 |
A351 CF8M |
A351 CF3 |
A351 CF3M |
|
Sealing surface |
13Cr/STL |
STL |
Body / STL |
Body / STL |
Body / STL |
Body / STL |
|
Valve shaft |
A182 F6a |
A182 F11 |
A182 F304 |
A182 F316 |
A182 F304L |
A182 F316L |
|
Gasket |
Flexible graphite |
Flexible graphite |
Flexible graphite |
Flexible graphite |
Flexible graphite |
Flexible graphite |
|
bolt |
A193 B7 |
A193 B16 |
A193 B8 |
A193 B8M |
A193 B8 |
A193 B8M |
|
Nut |
A194 2H |
A194 4 |
A194 8 |
A194 8M |
A194 8 |
A194 8M |
|
Operating temperature |
-29~425℃ |
-29~540℃ |
-46~425℃ |
-46~425℃ |
-46~425℃ |
-46~425℃ |
|
Suitable media |
steam |
steam |
Weak corrosive |
Weak corrosive |
Weak corrosive |
Weak corrosive |
The main shape and connection dimensions
|
Nominal diameter |
size |
||||||||
|
m |
in |
L |
D |
D1 |
D2 |
b |
f |
n-Φd |
H |
|
H44H-150Lb |
|||||||||
|
50 |
2 |
203 |
152 |
120.5 |
92 |
16 |
1.6 |
4-19 |
180 |
|
80 |
3 |
241 |
192 |
152.5 |
127 |
19 |
1.6 |
4-19 |
190 |
|
100 |
4 |
297 |
229 |
190.5 |
157 |
24 |
1.6 |
8-19 |
203 |
|
125 |
5 |
330 |
254 |
216 |
186 |
24 |
1.6 |
8-22 |
229 |
|
150 |
6 |
356 |
279 |
241.5 |
216 |
26 |
1.6 |
8-22 |
257 |
|
200 |
8 |
495 |
342 |
298.5 |
270 |
29 |
1.6 |
8-22 |
292 |
|
250 |
10 |
622 |
406 |
362 |
324 |
31 |
1.6 |
12-25 |
355 |
|
300 |
12 |
698 |
483 |
432 |
381 |
32 |
1.6 |
12-25 |
396 |
|
H44H-300Lb |
|||||||||
|
50 |
2 |
267 |
165 |
127 |
92 |
23 |
1.6 |
8-19 |
178 |
|
80 |
3 |
318 |
210 |
168.5 |
127 |
29 |
1.6 |
8-22 |
216 |
|
100 |
4 |
356 |
254 |
200 |
157 |
32 |
1.6 |
8-22 |
241 |
|
125 |
5 |
400 |
279 |
235 |
186 |
35 |
1.6 |
8-22 |
267 |
|
150 |
6 |
444 |
318 |
270 |
216 |
37 |
1.6 |
12-22 |
305 |
|
200 |
8 |
533 |
381 |
330 |
270 |
42 |
1.6 |
12-25 |
368 |
|
250 |
10 |
622 |
445 |
387 |
324 |
48 |
1.6 |
16-29 |
394 |
|
300 |
12 |
711 |
521 |
451 |
381 |
51 |
1.6 |
16-32 |
445 |
|
H44H-600Lb |
|||||||||
|
50 |
2 |
295 |
165 |
127 |
92 |
33 |
6.4 |
8-19 |
203 |
|
80 |
3 |
359 |
210 |
168 |
127 |
36 |
6.4 |
8-22 |
235 |
|
100 |
4 |
435 |
273 |
216 |
157 |
45 |
6.4 |
8-25 |
286 |
|
125 |
5 |
511 |
330 |
266.5 |
186 |
52 |
6.4 |
8-29 |
292 |
|
150 |
6 |
562 |
356 |
292 |
216 |
55 |
6.4 |
12-29 |
330 |
|
200 |
8 |
664 |
419 |
349 |
270 |
63 |
6.4 |
12-32 |
381 |
|
250 |
10 |
791 |
510 |
432 |
324 |
71 |
6.4 |
16-35 |
457 |
|
300 |
12 |
842 |
559 |
489 |
381 |
74 |
6.4 |
20-35 |
584 |
Structure picture
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