Functional description of the pneumatic slurry valve

In the process of production and application, the pneumatic slurry valve continuously digests and absorbs the advanced features of similar product structures and manufacturing processes at home and abroad. Continuously improve the scientific and technological content of the products, starting from some technical details, and improve the comprehensive performance of the valve.

1. The double-operated three-position five-way solenoid valve is used to control the pneumatic slurry valve cylinder. The three-position switch can be used to control the gate valve to stay at the upper limit, lower limit and any position.

2. When the pneumatic slurry valve stays at the upper limit position and the lower limit position, the limit switch of the upper limit position and the lower limit position issues a set of normally open or normally closed independent signal contacts. Can be used as a status indicator.

3. When the valve stays at the lower limit position of the upper limit position, the limit switch of the upper limit position and the lower limit position automatically cut off the power supply of the corresponding control coil of the solenoid valve. When the valve stays in the upper limit position and the lower limit position for a long time, the electric control coil of the electromagnetic valve is not energized, which can avoid the heating of the electromagnetic coil and improve the service life of the electromagnetic valve, thereby greatly improving the reliability.

4. When the pneumatic slurry valve stays in the upper limit position and the lower limit position for a long time; the gas source is cut off without gas consumption, but the air pressure of the lock valve cylinder is still kept in the cylinder, which can ensure reliable stop position.

5. During the cylinder switch process, when the control power is cut off, the cylinder inlet and outlet gas are also cut off at the same time. The air pressure of the cylinder of the lock valve is still kept in the cylinder. If the cylinder piston, solenoid valve and joint are leak-free, the gate valve can be in any position for a long time. Stay.