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By certification 
Product Description:
1.Size :2"~48" (DN50~DN1200)
2.Working Pressure :150Lb,PN10,PN16
3.Working Temperature :-20°C~250°C
4.Suitable Medium:Water,Oil.
5.Forged Materials:A105N,F304,F304L,F316,F316L,F11,F22,F51,F55
6.Casting Material :WCB,WCC,C6,C12,LCB,LCC,CF8,CF3,CF8M,CF3M
7.End Connection:Wafer Type
Technical Specification:
A.Design&Manufacture standard: API 594,BS 1868
B. Face to face: ASME B16.10. DIN3202.
C.Pressure&Temperature standard: ASME B16.34
D.Flange standard: ASME B16.5, ASME B16.47. JIS B2220. DIN 2543-2550
E:Test&Inspect standard: API 598, API 6D.
Structural Feature:
1.Short structural length,only 1/4~1/8 of that of traditional flange check valve;
2.Low volume,light weight,only 1/4~1/20 of those of traditional flange check valve;
3.Quick valve disc close down,low water hammer pressure;
4.Applicable for and easily installed for vertical or horizontal pipelines;
5.Smooth flow passageway and small fluid resistance;
6.Flexible action and good sealing performance;
7.Narrow valve travel and small close down impact;
8.Integrated structure,simple and compact,in beautiful shape;
9.Long service life and good reliability.
