Structural feature: 
1. Short structural length,only1/4-1/8 of that of traditional flanged check valve;
2. Light weight,versatile design,80 to 90% lighter than conventional full-body check valves.
3. No need for additional expensive support.
4. Optimum space utilization;simplified piping.
5. Spring-loaded,double door design has low cracking pressure.
6. Discs open85° to ensure positive closing.
7. Materials and trims available for all services within temperature range.
8. Extended leg springs prevent seat wear caused by scrubbing
9. Resilient or metal to metal seat available
10. BUNA-N,viton,EPDM(and other materials as required) molded into the body.

Product Range: 
●Size: NPS1/2’’ –76’’/DN15– DN1900
●Rating: Class 150 – Class2500/PN10– PN420
●Material:WCB,WCC,WC6,WC9,CF8,CF8M,CF3,CF3M,CF8C,LCB,LCC

Design descriptions:
●One piece body
●Horizontal or vertical service
●Wafer lug ends
●Dual plate disc,long pattern
●Renewable split disc
●Available with flanged ends

Applicable standards:
●Design& manufacture:API 594,ASME B16.34
●Face to face:flanged,API 594
●Flange ends: ASME B16.5,ASME B16.47,EN 1092-1
●Inspection and test:API 598,EN 12266