ZBF22QS two two double-acting self-sustaining through a ball valve, dual-action series overview ZBF22QS self-retaining valve is mainly made up of body and drive mechanism composed of a self-sustaining two two-way valve, either manually or electrically. After receiving the open (off) valve signal, the drive mechanism to rotate the spool valve is energized to drive the internal valve drive mechanism to self-bit power, mechanical valve position indication pointing to the appropriate valve position, the valve position switch output passive valve signal. Each spool rotation 90 °, valve function switch once. ZBF22QS series-type double-acting self-retaining valve for air, oil, water and other non-corrosive fluids. It can be widely used in electric power, petrochemical, metallurgy and other departments to remotely control the flow of media channels and interrupt. Second, the technical parameters of the working medium: oil, water, non-corrosive gases rated pressure: 1.6MPa, other pressures can be customized, the maximum pressure up to 16MPa Medium temperature: ≤150 ℃ Relative humidity: ≤95% RH Ambient temperature: 0 ~ 45 ° C Supply voltage: DC220V DC24V AC220V AC110V DC110V off valve time: 15S 30S 60S 90S Connection: threaded small caliber DN10 ~ DN32 DN32 ~ DN125 flange connection of large diameter