According to the pressure changes in the pipe, it can open and close the pumps automatically, to achieve unmanned

automatic   pressure  controller for  water  pump   detail  information :

Product Specifications:

Available for water and pressure control systemsTurn on/off automatically in accordance to pressure alterationIt can control circuit on/off directly as the pump working current below 12AThe action on/off against relayThe working pressure is adjustable, subject to actual user requirement, within pressure rangePressure range: 0.7 to 3 barMaximum current: 5AMale and female: Z1/4, Z3/8 inchesRated voltage: 110 to 220VMaximum pressure: 3 barPressure settings: 1.0 to 1.7bar, 1.1 to 1.8barCoverage: USR, CNR-enclosed, double pole, single-phase pressure operated automatic switchTesting standard: UL standards 508 of America, Canadian standards c22.2 no. 14-95Electric rating: 115V 1.5hp, 20A/230V, 2.5hp 12A /230V, 3.0hp, 17A

Pressure Controller for water pump