Wafer Retainerless Tilting Disc Swing Check Valve (H77)
1) Size: 3" - 40"
2) Class: 150lbs - 900lbs
Technical standards:
1) Design and manufacture: API 6D
2) Face-to-face: ANSI B16.10
3) Flange end: ANSI B16.5
4) Inspection and test: API 598
Main materials:
1) Body: CS/SS - WCB, WCA, WCC, A351, A744, 304, 304L, 316, 316L
2) Disc: Stainless steel - A351, 420S, S42000, 304, 304L, 316, 316L
3) Stem and sealing surface: A351, A744, 304, 304L, 316, 316L
Wafer check valve is applicable for various pipelines with nominal pressure of PN1.0 Mpa~42.0Mpa,Class 150LB~2500LB and nominal diameter of DN15~1200mm,NPS 1/2-48 and working temperature of -196~540 degree Celsius to be used for protecting from medium backflowing.The different materials selection can apply to the medium involving water,steam,oils,nitric acid,acetid,strong oxidizing medium and urea etc.
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| Design and manufacture |
API594,API 6D,JB/TB8937 |
| Face to face and end to end |
API594,API6D,DIN3202,JB/T8937; |
| Pressure-temperature rating |
ASME B16.34,DIN2410,GB/T9124,HG20625,SH3406,JB/T74 |
| Inspection and test |
API598,JB/T9092; |
| Pipe flange |
JB/T74~90,JB/T9112-9124,HG20592~20635,SH3406,ASME B16.5,DIN2543~2548,GB/T13402,API605,ASME B16.47. |
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