Features
1. It is short in face to face dimensions, being1/4~1/8 times that of traditional flange type check valve.
2. It is impact in volume size and light in weight of about 1/4~1/20 times that of traditional flange type check valve.
3. The disc closes quickly with less water hammer pressure.
4. It is convenient in installation, being available for use on level or vertical pipelines.
5. Flow passage is fluent with less flow resistance.
6. It acts sensitively with good sealing effect.
7. Disc travel is short with less impact force caused by valve closing.
8. It is impact in integral structure with nice outline view.
9. It is longer in service life with high reliability. 
Material:
Material :GP240GH (1.0619/GS-C25),G-X6CrNi18.9(1.4308),G-X6CrNiMo18.10 (1.4408) ,WCB,WCC,CF8,CF3,CF3M,CF8M,CF8C,WC6,WC9,LCB,LCC,A105,F304,F304L,F316,f316L
Standard
Nominal diameter(DN,NPS): DN50-DN1200;NPS2-NPS40
Nominal pressure(PN,Class): PN16,PN25,PN40,PN63,PN100; Class:150-2500LB
Design&manufacture standard: API 594/BS 1868/API 6D
Face to face standard:API 594/API 6D
Flange standard:EN 1092-1/DIN 2501/ASME B16.5/B16.47;
Test :API 594/API 6D
Anti Sulfur: NACE 0175
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