19
VERSION 01/2018
ORDER NUMBER DOC 2316596
5.3 PROTECTIVE AND MONITORING EQUIPMENT
5.3.1 SAFETY VALVE
WARNING
Overpressure!
Danger to life from bursting device components.
Never change the safety valve setting.
The air motor is tted with a safety valve. The safety valve (11) has been set and sealed at
the factory. In case of pressures over and above the permissible operating pressure, the
valve, which is held with a spring, automatically opens and releases the excess pressure.
As well as handling pressure limits, the valve is also used as a pressure relief valve for the
air motor.
Procedure:
1. Close ball valve (10).
2. Pull the ring on the safety valve (11) and hold it until the pressure in the air motor
has been equalized.
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