Wafer Type Swing Check Valve
Wafer Type Double Disc Type Swing Check Valves
Check valve is usually installed in linesystem, prevent medium from flowing back. Check valve is an automatic valve that itis open and close by pressure of fluid.
Against the problem of traditional check valve, we accord AMERICA API&GERMNEY DIN, after study and research for many years, developed H76 lug body type wafer, double-disc swing type wafer check valve, H74 swing single-plate wafer check valve, H71 lift wafer check valve, and series of those products. Used in the industry of oil, petro, metallurgy, electric, light industry, food, received high appraisal from customers.
| Design Standard | GB/T12221 | API6DAPI594 | ||||||
| Pressure-Temperature Rating | GB/T12224 | ASME B16.34 | ||||||
| Face to Face | Factory standard | API6DAPI594 | ||||||
| Flange Ends | GB/T9113JB/T79 | ASME B16.5, ASME B16. 47 | ||||||
| Inspection & Test | JB/T9092/GB/T13927 | API598/API6D | ||||||
| Test Pressure(MPA) | Shell Test | CL150 | CL300 | CL400 | CL600 | CL900 | CL1500 | |
High Pressure Seal Test | 2.93 | 7.58 | 10.0 | 15.0 | 22.4 | 37.5 | ||
Low Pressure Seal Test | 2.07 | 5.52 | 7.31 | 11.03 | 16.54 | 27.5 | ||
Applicable Standards
- Design Standard: API 6D, API 594, BS1868, API602
- Nominal Dimension: Casting Valve: 2”-48”, Forging Valve: 1/4"~2"
- Nominal Pressure: Class 150-2500
- Connection type: WAFER, LUG, FLANGE, ETC.
- Structure: Bolted Bonnet, Welded bonnet, Pressure seal, Double disc, Tilting disc,”Y” pattern,Non Slam design.
- Material:DI, CS, SS, DSS,LTCS, Inconel ,Monel, Bronze,Aluminum Bronze
- Operation: Damper and counterweight(optional)
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