Pneumatic gate valve introduction and working principle
Introduce pneumatic gate valves
Pneumatic gate valve adopts sleeve guide, pressure balance spool, suitable for the occasion of large pressure difference. The balance seal ring is used to replace the upper seat, and the traditional sleeve double seat valve structure is replaced by the sleeve single seat structure, which greatly improves the leakage level of the sleeve regulating valve. Valve cover with bellows and packing double seal, fundamentally eliminate the possibility of media leakage. This kind of regulating valve is suitable for toxic or precious medium flow pressure control.
The spool adopts pressure balance structure, and the high pressure difference can be controlled by a small thrust of the actuator. Good sealing performance, large allowable pressure difference. Casing guide, large guide area, good stability, compact structure, can quickly replace the internal valve online, high maintenance efficiency, save manpower and time.
The direction of action of the unbalanced force is changed by changing the direction of action of the unbalanced force FI.
Pneumatic gate valve working principle
Working principle of pneumatic valve, pneumatic valve two five-way solenoid valve is usually used with double-acting pneumatic actuators, using compressed air driven actuators combine pneumatic piston motion, drive tubular spindle rotation, compressed air to each cylinder, change the position of imports and exports, change the spindle rotation torque according to load (valve) requirements, adjustable cylinder combination number, Drive the load (valve) to work.
Two five-way solenoid valve which is equipped with double-acting pneumatic actuators, two is two position control, on-off, there are five tunnel ventilation, 45 is one connected with gas source, two with the internal chamber in and out of the port in succession, you may refer to the working principle of concrete working principle of the double-acting pneumatic actuators and two double-acting, external air chamber of cylinder in and out of the port connection. Due to the increasing number of control methods and means, many methods can be used to control pneumatic actuators in practical industrial development and industrial control.
