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Liquid system
Safety valves
The safety valve protects the liquid circuit against over pressure in the
event of failures or clogged lines.
If the spring-loaded safety valve opens the liquid is lead back to tank via
hose (A).
The safety valve opens at15 bar.
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DANGER! Do not remove, bypass or block safety valve from the
liquid circuit as this could put your safety at risk.
Pressure pulsation damper
The 321 pump is fitted with a pulsation damper on suction and pressure
sides. The pressure side damper is pressurized. The dampers will reduce
pulsations and secure an even flow from the pump.
The pressure pulsation damper should be inflated to the pressure
shown in the table on top of the pulsation damper (A).
Suction filter
Suction filter is located at the top of the tank.
The filter screen can be checked by unscrewing the lid and pulling the
filter up.
3 - Description
13
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