Air Compressor Unloader Valve | Power-off Vent Solenoid | 220V Coil

This air compressor unloader valve is a power-off vent solenoid valve for oil-free air pumps, built with a cast aluminium square valve body and a 220V coil with an indicator light. When the power is cut, the valve vents trapped pressure so the compressor can restart without working against a full head of air. It is sold as a valve body, a coil without wire, or a coil with wire, so you can replace just the part that has failed. Features and benefits: - Power-off vent: releases excess pressure when the supply is cut, which helps protect the compressor from start-up strain - Cast aluminium square valve body: a solid body that suits workshop use - 220V coil with indicator light: the light shows at a glance that the coil is energised - IP65 rated coil and 100% ED rating: built for continuous duty and for dusty or splash-prone workshop air - Three options: valve body only, coil with light without wire, or coil with light with wire, so you buy only what you need - Wire option has a red and black lead, about 36cm long, ready to connect - Described as a mute, oil-free type valve: intended for oil-free air pump setups Applications: - Replacing a worn or failed unloader solenoid on an oil-free air compressor - Power-off pressure relief on small air pump and compressor builds - Workshop, garage and maintenance repairs on 220V compressor units - Spare coil or spare valve body for a maintenance stock shelf In the box: One item per order, depending on the option chosen: 1 x square valve body, or 1 x coil with light without wire, or 1 x coil with light with wire. Note: The coil is a 220V AC part. Isolate the compressor from the mains and release stored air pressure before removing or fitting any valve or coil. Wiring should be done by a competent person. Check your compressor's existing valve and coil against the option pictures before ordering, as the listing gives no thread size or flow figures.