Check Valves; Bleed Valve; Pressure Maintaining Valve; Safety Valve - Bauer Compressors P0 Instruction Manual And Replacement Parts List

MNL-0096

4.3.5 Check Valves

Check valves allow compressed air to flow in only one direction. One is used to maintain pressure in the
chamber when the compressor is not operating. The other check valve prevents flow from filled storage
cylinders or tanks back into the purification system and compressor.

4.3.6 Bleed Valve

A manually operated valve used to release the pressure in the chambers before maintenance.

4.3.7 Pressure Maintaining Valve

The pressure maintaining valve ensures that pressure is built up in the purification system from the start
of delivery, thus achieving constant optimum purification. It also assures proper working conditions for
the final stage of compression.

4.3.8 Safety Valve

The safety valve is located on the coalescing oil and water separator and acts as the safety valve for the
final stage of the compressor.

4.4 Maintenance

4.4.1 Oil and Water Separator

To remove the sintered metal filter proceed as follows: (See Figure 4-4)
1. Disconnect the power and shut off the inlet supply line if applicable.
2. Depressurize the system by means of the bleed valve.
3. Remove the tubes connected to the side of the filter head (1).
4. Unscrew and remove the filter head.
5. Unscrew the sintered metal filter assembly (2) from the filter head.
6. Remove the center screw (3) to disassemble the sintered metal filter assembly.
7. Clean the sintered metal filter using hot soapy water. Blow dry with compressed air.
8. After cleaning the element, record the number of operating hours to ensure exact attention to the
maintenance intervals.
9. Lubricate the threads and O-rings as well as the threaded part of the sintered metal filter with petro-
leum jelly. Apply sparingly.
10. Dry the inside of the filter housing with a clean cloth and check for corrosion.
11. In the event you discover corrosion, replace the corroded parts with new BAUER parts.
12. Reinstall the sintered metal filter assembly and filter head.
13. Replace all removed tubes, close all valves and check for leaks.
April 17, 2013 Page 26