Technical Specifications:

1.Connection End:

 Flanged: ASME B16.5、ASME B16.47;    Butt-welding ASME B16.25

2.Face-to-Face：

ASME B16.10  API 6D

3.Design Standard:

B16.34 GB/T 12224   CJ/T 282

4.Test and inspection:

API 598  API 6D

The slow shut check valve is installed at the outlet of the water supply and drainage pipe pump to prevent the counter current of the medium and eliminate the destructive water hammer, and effectively reduce the pressure of the water hammer, which can ensure safe operation; Slow closed check valve has the characteristics of light disc, large opening, power saving effect, small fluid resistance, novel design of water hammer eliminating mechanism, smooth operation, no vibration, no noise and so on.