Gas Ballast Valve – E1M175

The E1M175 is a powerful single-stage rotary vane pump. It is used in demanding industrial and laboratory applications. It has a gas ballast system. This system is critical for pumping water vapor without ruining the pump oil .

The gas ballast system has several components that work together :

• Gas Ballast Valve (A25904603): The main valve body that screws into the pump stator. This is the part you are looking at.

• Gas Ballast Control Knob (A19201013): The external knob you turn to open or close the valve .

• Gas Ballast Insert: The internal moving part that seals the valve .

• Ballast Filter (Felt): A felt filter that cleans the incoming air .

• Gas Ballast Tube Assembly: The pipe that directs the air from the valve to the pump .

If you are rebuilding your gas ballast system, you may need several of these parts.