◇ Overview DP-8/7-type electromagnetic pressure valve by a direct electric iron, to control the position of the piston, to change the oil switch, used to control the actuators hydraulically operated valve. The valve is widely used in the hydraulic systems of water, fire, power plants and other industrial sectors. ◇ features of the valve from the drive housing and the piston, DC solenoids and other components. When the piston is at the lower end, the pressure oil from A leading C, D towards B is discharged; when the piston is at the upper end, the pressure oil from A towards D, C leads B discharged. When there is no power that can be used to manually operate. ◇ main technical parameters 1) The valve should be mounted vertically, using medium temperature 5 ~ 60 ℃ 2) Rated oil pressure: 0.7MPa, 2.5MPa, 4.0MPa. 3) Nominal Diameter: Ф8. 4) Connection: standard pipe header. 5) Working medium: oil. 6) Power supply voltage: DC220V, 110V, AC220V, 110V. 7) Work: instant power on or manual operation. ◇ Model Description DP-8 / 7- □ □ rated working voltage direct electric railway hydraulic suction (0.7MPa) nominal diameter Model