◇ Overview and Features DKB self-holding solenoid air valve is by unmanned or remote-controlled automated system designed for the high demands for air circulation off, so that the actuator action. In particular, the electrical signal is applied to hydro stop process, receiving speed signals and switch gas line, the air brake mechanism is operated. And keep working reliably. ◇ main technical parameters 1) Working pressure: 0.5 ~ 1MPa. 2) Nominal diameter: Φ10mm, Φ15mm, Φ20mm. 3) Connection: standard pipe joint connection (GB3733). 4) Working media: non-corrosive gases. 5) Power supply voltage: DC110V, DC220V, AC220V. 6) Medium temperature: less than 60 ℃ action program: First, conditions for automatic operation :( P chamber through the pressure of the gas, the two solenoid pilot valve manual knob must be in the "on" position) ① ON: When two three When the pilot solenoid valve is energized, the main valve to open under the action of the piston, pressurized gas into the chamber from P A chamber while the trip valve is open, realize the pilot valve in case of power failure, the main valve to maintain the existing status. ② OFF: When the two-way solenoid pilot valve is energized, the role of the main valve pressure is closed, while the trip valve is closed, to achieve after the pilot valve power, reset state self-holding. Second, the manual operation (The condition of P into the pressurized gas chamber, solenoid pilot valves in case of power failure) ① ON: In the manual knob two-way solenoid pilot valve is in parallel with the longitudinal axis of the "a" position situation, rotating two-way solenoid pilot valve manual knob, and turn it on manually, action programs such as the program automatically open. ② OFF: manually rotating the knob two-way electromagnetic pilot valve, achieve closure manually operated, action programs such as automatic shutdown procedures. Third, the original memory function: When the case of the power and gas supply are gone, and the main valve in the action of the spring in the off original state. ◇ Model Description DKB 23- □ - □ / □ S stands for taping SK signal contacts rated working voltage of medium pressure nominal diameter model (two-way)