ABOUT CHECK VALVES:
Check valves are mechanical valves that permit gases and liquids to flow in only one direction ,preventing proces flow from reversing .They are classified as one-way directional valves.Fluid flow in the desired direction opens the valve ,while back flow forces the valve closed.The mechanics of check valve operation are not complicated. Check valves work automatically and most dont need control by people or any external control.
Including:
EH SERIES ,AH SERIES,BH SERIES ,HH44X TYPE,HH49X TYPE,HV41X TYPE,HC4X TYPE,H74X TYPE etc.