Kaeser Combined Auxiliary Venting Valve Complete Replacement – 205831E1

The Kaeser 205831E1 Combined Auxiliary Venting Valve Complete (CAVV) is a pneumatic control valve assembly used in compatible Kaeser rotary screw compressors. Parts catalogs identify 205831E1 specifically as a Combined Auxiliary Venting Valve Complete (CAVV). The earlier 205831E0 version is listed as replaced by 205831E1.

Working Process

The 205831E1 CAVV combines auxiliary venting and compressor control functions within the pneumatic control circuit. During compressor operation, the valve responds to control signals and pressure conditions to manage the appropriate flow of control air and venting air.

When the compressor is loaded, the valve helps maintain the required pneumatic conditions so the inlet and compression system can operate normally. As the compressor reaches the required operating pressure or changes to an unloaded condition, the auxiliary venting function allows pressure to be relieved from the appropriate control circuit.

This controlled venting helps the compressor transition between loaded and unloaded operation smoothly. It can also assist in reducing residual pressure in the relevant control circuit during shutdown or unloading, helping the compressor restart under the intended operating conditions.

A correctly functioning CAVV is important for reliable load/unload control, pressure management and compressor sequencing. If the valve becomes contaminated, worn or fails to actuate correctly, the compressor may experience loading problems, incorrect venting, unstable pressure or difficulty during startup.

Key Benefits

• Controls auxiliary pneumatic venting.
• Supports reliable compressor load/unload operation.
• Helps manage control-air pressure.
• Supports smooth compressor unloading.
• Helps facilitate appropriate pressure relief during shutdown.
• Supports reliable compressor starting and stopping sequences.
• Helps maintain stable compressor operation.
• Designed as a complete valve assembly for compatible Kaeser compressors.
• Suitable for compressor maintenance and replacement.

Replacement Information

205831E1 replaced the earlier 205831E0 part number in available Kaeser compressor parts references. The component is also listed as a 24 V DC combination discharge/auxiliary valve in OEM parts listings.

Maintenance Importance

During scheduled compressor maintenance, the CAVV should be checked for air leakage, contamination, sticking, damaged seals and correct actuation. A malfunctioning auxiliary venting valve can affect compressor loading, unloading and pressure-control performance.

Before installation, verify the compressor model, control-voltage specification and serial number to ensure that 205831E1 is the correct replacement.

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