Air Compressor Pressure Relief Valve Switch Manifold | 90-120PSI | Gauges

This air compressor pressure relief valve manifold combines an automatic air pressure switch, two pressure gauges, a red safety valve and a ball valve switch on an aluminium alloy bracket. It starts and stops the compressor across a switching range of 0.5 to 0.8MPa (90 to 120PSI), and the safety valve on the right gives pressure relief if the system goes over range. It is rated 220V (230V on the gauge artwork) with a maximum current of 20A. Features and benefits: - Automatic pressure switch, normally closed - cuts the compressor in and out on its set pressure range instead of running it by hand - Safety valve with a pin ring - the red valve on the right vents air if pressure climbs past the working range - Ball valve switch with a red knob - a manual exhaust at the manifold for releasing air when needed - Two gauges with plastic cases, 42mm diameter - scales in kg/cm2 up to 12, PSI up to 180 and KPa/BAR - Aluminium alloy bracket - one rigid mount that holds the switch, gauges and valves together - Several port sizes on the manifold: 20mm bracket joint, 12mm, 10mm and about 9.5mm outer pressure relief port, plus a 6mm exhaust pipe - Rated at up to 20A, with a working pressure of 5 to 8kg (90 to 120PSI) Applications: - Replacing a worn or failed pressure switch on a workshop air compressor - Building a compressor control and relief manifold on a tank - Maintenance and repair of small compressor units - Teaching and demonstration of compressor control components In the box: - 2 x pressure gauges (plastic cover) - 1 x automatic air pressure switch - 1 x safety valve - 1 x ball valve switch - 1 x bracket Note: Always depressurise the tank and isolate the compressor from the mains before fitting or removing this manifold. Wiring should be done by a competent person. The listing is inconsistent on pressure adjustment: it describes an adjustable relief regulator but also says the pressure is not adjustable, so check that the 90 to 120PSI range suits your compressor before ordering. Sizes are approximate, with 0.5 to 2cm of variation from manual measurement.