Model NO.: H42W
Material: Stainless Steel
Connection Form: Thread
Pressure: Ordinary Temperature
A. Size 1/2 inch to 4 inch.
B. Material: CF8 CF8M
C. End connections by BSP BSPT NPT G
E. Designed: API 602 DIN 3352 EN10434 BS 1414
F. Designed and tested to API 598/6D
G. PN16 200WOG Temperature: -40- 300(Degrees Celsius)
H. Control device: Hand wheel.
The valve flap of the lift check valve is disc-shaped and rotates around the shaft of the valve seat passage. Because the valve passage is streamlined, the flow resistance is smaller than that of the butterfly check valve, which is suitable for low flow rate and Large-caliber occasions where the flow does not change frequently, but it is not suitable for pulsating flow, and its sealing performance is not as good as that of lifting. The butterfly check valve is divided into three types: single-valve, double-valve and multi-half. These three forms are mainly divided according to the valve diameter. The purpose is to prevent the hydraulic shock from being weakened when the medium stops flowing or reverses.