180R9264 | AQ115586503043en-000903 | 39
© Danfoss | 2023.03
Operating guide
Installation, Operation and Maintenance APP 11-13
3.5 Connections
3.4 Protection against too high
outlet pressure
The pump should be protected against too high
outlet pressure by means of a safety valve or a
pressure relief valve. The valve should be placed
as close to the pump as possible. The opening
characteristics of the valve must not result in
peak pressures higher than 80 barg (1160 psig).
Both the inlet and outlet lines must be flexible
soft hoses.
The valve outlet must not be connected
directly to the pump suction line. It must be
connected directly to the drain.
Inlet
Outlet
Outlet
Inlet
I
O
C
D
C
I : Inlet
O : Outlet
C : Bleeding
D : Parallel key
Instruction
