Pilot to close check valve

If the inlet pressure at 1 is higher than the outlet pressure at 2, then the non-return valve allows the flow to pass, otherwise it blocks the flow. Additionally, the non-return valve can be closed using the pilot line 10.

Adjustable parameters

Designation Range Default value
Area ratio 0.1 ... 10 3.3
Standard nominal flow rate 0.1 ... 5000 l/min 108