This vacuum pump solenoid switch is a plug-in adapter that connects to a pump’s 1/4" (0.64 cm) FL inlet port, allowing on/off control via its built-in switch, and is 220 V (50/60 Hz). it prevents vacuum loss and oil backflow by automatically closing the solenoid when the pump shuts off.

This vacuum pump solenoid switch is a plug-in adapter that connects to a pump’s 1/4" (0.64 cm) FL inlet port, allowing on/off control via its built-in switch, and is 220 V (50/60 Hz). it prevents vacuum loss and oil backflow by automatically closing the solenoid when the pump shuts off.