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- Appliances For Pipes, Boiler Shells, Tanks, Vats Or The Like (excl. Pressure-reducing Valves, Valves For The Control Of Pneumatic Power Transmission, Check "non-return" Valves And Safety Or Relief Valves)
swing check valve,3" Flange Flapper Check Valve
Product Images
Product Property
| Product Status : | New |
| Sample Available : | yes |
| Shipment Terms : | Negotiable |
| Payment Mode : |
Negotiable |
Description
PN16 ~ PN250 swing check valve is suitable for any pipeline in petroleum, chemical, pharmaceutical, chemical fertilizer, electric power industry, etc, whose
Working pressure range from1.6 to 25 MPa, working temperature range of butterfly swing check valve from - 29 to + 550 ℃, and medium are varied like water, oil, steam, acid medium, etc.
Performance Data of cast iron swing check valve
| Design | Length | Flange | Pressure | Test | |
| GB/T12236 | GB12221 | JB79 | GB9131 | GB/T13927 | |
| |
Design Pressure Unit: MPa
| Pressure | 1.6 | 2.5 | 4 | 6.4 | 10 | 16 |
| Strength | 2.4 | 3.8 | 6 | 9.6 | 15 | 24 |
| Water seal | 1.6 | 2.5 | 4 | 6.4 | 10 | 16 |
| Air seal | 0.4-0.7 | |||||
Components/Material/Function
| Body Cover | Guide sleeve | Pin roll | Filler piece | Sealing | Applicable | Applicable |
| QT450 | WCB | 1Cr13 | Reinforced flexible | 1CrSTL | ≦350 | Water. |
| WCB | ≦425 | |||||
| WC8 | WC6 | ≦540 | ||||
| WC9 | WC9 | ≦570 | ||||
| 2GCr5Mo | 2GCr5Mo | ≦550 | ||||
| ZG1Cr18Ni9Ti | ZG1Cr18Ni9Ti | 1Cr18Ni9Ti | ≦200 | Nitric acid | ||
| ZG1C18Ni12Mo2Ti | ZG1C18Ni12Mo2Ti | 1C18Ni12Mo2Ti | ≦200 | acetic acid |
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