ZBF23QS two-way dual-action self-retaining valve I. Overview ZBF23QS double action self-retaining valve is mainly made up of body and drive mechanism composed of a self-retaining valve. After receiving the open (off) valve signal, the drive mechanism driven ball valve is energized to rotate the spool to position after power failure since the internal electric actuators, valve position indication pointing to the appropriate mechanical valve, the valve position switch output passive valve position signal. Spool valve function every 90 ° to switch again. Air, oil, water and other non-corrosive fluids ZBF23QS type self-retaining valve apply. It can be widely used in electric power, petrochemical, metallurgy and other sectors, in order to interrupt the flow of the pipeline media remote control, braking and air units can be used for hydroelectric inflatable shroud. Second, the technical parameters of the working medium: oil, water, non-corrosive gases rated pressure: 6.4MPa Medium temperature: ≤150 ℃ ambient temperature: 0 ~ 40 ℃ Relative humidity: ≤95% RH diameter: 10,15mm supply voltage: DC220V DC24V AC220V AC110V DC110V (preferred AC) power: 20W Switching time: 15S