mechanical device

haoshi Mon Dec 13, 2010 12:54 am

Check valve is a mechanical device, a valve, which normally allows fluid (liquid or gas) to flow through it in only one direction,also called non-return valve or one-way valve. Check valve usually is very small, simple, and/or inexpensive, although it is available in a wide range of sizes and costs. Check valve is used in many fluid systems such as those in chemical and power plants, and in many other industrial processes.Dual Plate Check Valve is good
Wafer Dual Plate Check Valve
Main Parameters ：
1. NPS & Class：NPS 2＂~48＂ Class150Lb~1500Lb
2. Face to Face Dimension：API 594、API 6D、 EN558、（DIN 3202）
3. Flange Connection Dimension：ASME B16.5、ASME B16.47、(DIN 2501)
4. Test and Inspection:API 598、API 6D
5. Pressure-Temperature Ratings：ASME B16.34
6. Main Materials:WCB,WCA,WCC,LCB,LCC,WC6,WC9,C5,C12,
CF8,CF8M,CF3,CF3M,CF8C,CN7M