Backflow prevention valve

The non-return valve works like a check valve. However, the opening and closing rates can be adjusted independent from each other via throttle valves (3A) and (3B). Any return flow is prevented if the inlet pressure (P1) is equal to or lower than the outlet pressure (P2). The hydraulic interlock guarantees absolute tightness.

Minimum inlet pressure: 1 bar

For rating, please specify the following:
- Flow (med., max.)
- Inlet pressure (P1 side)
- Admissible pressure drop (normal: 0.2-0.5 bar)

 Technical datasheet