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dual disc wafer check valve steel check valve check valve pump 

 Function description:

1. Swing check valve disc shapes as a disc, which is around seat channel shaft for rotary motion.
2. Its main function is to prevent medium for backflow, the pump and drive motor for reversal and container medium for relief.
3. It is suitable for low velocity and the flow doesn't often change in large diameter occasion. 

dual disc wafer check valve steel check valve check valve pump

1). Size: 2"-30"                                     

2). Material: CF8, CF8M, CF3, CF3M, 304, 304L, 316, 316L, WCB, WCC, WC9, LCB, LCC ETC.

3). Class: 150LB, 300LB, 600LB, 900LB, 1500LB, 2500LB 4). Suitable medium: water, oil, air and some corrosive liquid

5). Temperature range: -20°C to 425°C                                                             

6). Operate: lever, pneumatic, actuator                                                      

7). Design and manufacture: API 6D & ANSI B16.34

8). Inspection and Test: API 6D & API 598 

9). Flange end dimension: ASME B16.5 & ANSI B16.47

10). Butt-welding end dimension: ASME B16.25

11). Face to face: API 6D & ASME B16.10

12). Certificate: API, CE, TS, ISO, AZ

 CASTING  AND  VALVE  MANUFACTURE  FLOW  DIAGRAM 

( dual disc wafer check valve steel check valve check valve pump )