MNL-0391
April 26, 2007
Page 51
BAUER
COMPRESSORS
CHAPTER 6:
MISCELLANEOUS
6.1
Safety Valves
6.1.1
Description
All three compressor stages are protected by safety valves. The first and second stage safety valves are
adjusted to the correct pressure and sealed at the factory. The final stage safety valve is mounted on top
of the P0 Filter System and is adjusted to the operating pressure of the unit. The pressure settings are as
follows: 1st stage - 116 psi (8 bar); 2nd stage - 1,160 psi (80 bar); Final stage - As noted on order.
6.1.2
Maintenance
6.1.2.1
Checking Function
The final pressure safety valve (See Figure 6-1) has to be checked regularly. For this purpose the final
safety valve can be vented manually. Turn the knurled knob on top of the valve clockwise until the
valve blows off. This just ensures that the valve is functional and will release pressure in case of mal-
function.
6.1.2.2
Checking Blow Off Pressure
Check the blow off pressure of the final pressure safety valve in accordance with the maintenance
schedule. Run the unit with shut off valve closed until final pressure safety valve blows off. Check blow
off pressure of the safety valve at the Pressure Gauge.
6.2
Pressure Gauge
6.2.1
Maintenance
We recommend checking the accuracy of Final Pressure Gauge from time to time. Slight deviations
during operation are normal and can be ignored. Excessive inaccuracy will require the pressure gauge
to be replaced.
1. Hourmeter
2. Pressure Gauge
Figure 6-1
Final Pressure Safety Valve
Figure 6-2
Gauges
1
2
