-
E-mail
shghfmc@163.com
- Phone
-
Address
Industrial Park, Songjiang District, Shanghai
Shanghai Guanhuan Valve Manufacturing Co., Ltd
shghfmc@163.com
Industrial Park, Songjiang District, Shanghai
Produced by Shanghai Guanhuan Valve Manufacturing Co., LtdExhaust check valve,H664H、H664YExhaust check valveUsed on non corrosive medium pipelines such as steam and water in power plants or thermal power plant extraction systems, or other systems, to prevent sudden pressure drops inside the turbine during sudden load shedding. Shanghai Crown Ring Valve is a professional manufacturerExhaust check valve,The power station valves, extraction pipes, and various heaters allow steam to flow back into the turbine, causing the turbine blades to break and damaging the turbine generator. It also prevents water hammer accidents caused by leakage of the heater system pipeline, which allows water to enter the turbine from the extraction pipeline, in order to protect the safe operation of the turbine.
Technical Specifications:
model |
PN |
work pressure/Mpa |
Applicable Temperature/℃ |
Applicable Medium |
H664H-20 |
20 |
2.0 |
≤427 |
Water, steam |
H664H-50 |
50 |
5.0 |
||
H664H-100 |
100 |
10.0 |
||
H664Y-100I |
100 |
10.0 |
≤540 |
Main component materials:
serial number |
Part Name |
Carbon steel type(C) |
Alloy steel(I) |
||
1 |
cylinder |
A105 |
A105 |
||
2 |
valve body |
WCB |
WC6 |
||
3 |
valve disc |
WCB |
WC6 |
||
4 |
joystick |
WCB |
WC6 |
||
5 |
shift fork |
WCB |
WCB |
||
6 |
pin shaft |
2Cr13 |
304 |
||
7 |
valve cover |
WCB |
WC6 |
||
8 |
Extension rod and middle hammer |
WCB |
WCB |
||
Product Category |
Applicable temperature ℃ |
Applicable Medium |
|||
Carbon steel type(C) |
≤425 |
Non corrosive media such as steam and water |
|||
Alloy steel(I) |
≤550 |

Appearance and connection dimensions:
Class 150 | ||||||||||||||||||
NPS ( in ) |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
24 |
28 |
30 |
36 |
||||||
DN ( mm ) |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
600 |
700 |
750 |
900 |
||||||
L |
320 |
450 |
540 |
610 |
650 |
650 |
740 |
790 |
915 |
1040 |
1120 |
1450 |
||||||
H |
258 |
300 |
355 |
425 |
438 |
480 |
535 |
555 |
615 |
782 |
825 |
930 |
||||||
d |
152 |
201 |
252 |
288 |
328 |
376 |
425 |
472 |
568 |
670 |
715 |
880 |
||||||
D |
182 |
235 |
295 |
350 |
380 |
435 |
486 |
540 |
645 |
740 |
800 |
650 |
||||||
Wt ( Kg ) |
85 |
144 |
225 |
350 |
372 |
495 |
625 |
770 |
1305 |
1870 |
1990 |
2350 |
||||||
Class 300 | ||||||||||||||||||
NPS ( in ) |
6 |
8 |
10 |
12 |
14 |
20 |
24 |
|||||||||||
DN ( mm ) |
150 |
200 |
250 |
300 |
350 |
500 |
600 |
|||||||||||
L |
420 |
526 |
580 |
610 |
700 |
800 |
850 |
|||||||||||
H |
305 |
348 |
410 |
448 |
475 |
620 |
702 |
|||||||||||
d |
152 |
201 |
252 |
288 |
318 |
458 |
545 |
|||||||||||
D |
182 |
235 |
295 |
350 |
386 |
530 |
640 |
|||||||||||
Wt ( Kg ) |
126 |
210 |
325 |
480 |
575 |
1145 |
1830 |
|||||||||||
Class 600 | ||||||||||||||||||
NPS ( in ) |
6 |
8 |
10 |
12 |
14 |
20 |
24 |
|||||||||||
DN ( mm ) |
150 |
200 |
250 |
300 |
350 |
500 |
600 |
|||||||||||
L |
420 |
526 |
580 |
610 |
650 |
680 |
960 |
|||||||||||
H |
365 |
432 |
498 |
578 |
660 |
805 |
900 |
|||||||||||
d |
138 |
182 |
224 |
300 |
352 |
446 |
532 |
|||||||||||
D |
196 |
250 |
298 |
386 |
430 |
536 |
645 |
|||||||||||
Wt ( Kg ) |
215 |
400 |
600 |
1060 |
1435 |
2455 |
3620 |
|||||||||||