pressure valve 99229021 unbalanced O-ring seal

unbalanced O-ring seal

The agitator must be protected against dry-running

Pipework connection is via internal Whitworth pipe threads

Pressure valves provide a constant counterpressure and prevent siphoning Opening pressure is fix at 3 bar

a straight or 90° bent pipe for BM 3A

pressure valve 99229021 unbalanced O-ring sealPressure valves provide a constant counterpressure and prevent siphoning Opening pressure is fix at 3 bar. They are particularly required for DDA FC or DDA FCM pumps at very small flow rates. Pressure valves are installed either directly on the pump discharge side, or on the pressure relief valve. Spring material is Alloy C 4 (NiMo16CrTi, material number 2. 4610).