| Product introduction |
Oversized silence check valve is flow-line designed according to hydrodynamics and the pressure loss is very little.The valve is installed at the outlet of the pump,and it closes before the fluid flow backward,so prevent water-hammering,water-hitting and destructive impact.So the valve can run quietly in the system.It is widely used in feeding/draining system,fire protection,heat supplying system and industry. |
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Main technical parameters |
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Nominal pressure: 1.0-2.5MPa
Nominal diameter: 300-1200mm
Service:water,oils,sea water,sewage
Working temperature:0-80
Flanged end: GB/T17241.6 GB9113
Inspection and test: GB/T 13927 API 598
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Typical installation diagram
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Material |
|
part |
body |
disc |
bearing |
spring |
Diversion shuttle |
seat |
|
material |
GG25 |
ZQA19-4 |
ZQA19-4 |
SUS316 |
Gg25 |
ZQA19-4 | |
Main dimensionsunit:mm |
|
DN |
300 |
350 |
400 |
450 |
500 |
600 |
700 |
800 |
900 |
1000 |
1200 |
|
L |
181 |
184 |
191 |
203 |
219 |
222 |
280 |
356 |
368 |
432 |
524 | |
