Industry new

Daily maintenance management of electric valve Electric valve import selection price

The electric valve is usually connected by an electric actuator and a valve, and becomes an electric valve after installation and debugging.

The electric valve uses electric energy as power to connect the electric actuator to drive the valve to realize the switching and regulating action of the valve. Thereby achieving the switching or regulating purpose of the pipeline medium. The solenoid valve is a kind of electric valve; the magnetic field generated by the electromagnetic coil is used to pull the valve core, thereby changing the opening and closing of the valve body, the coil is de-energized, and the valve core is returned by the pressure of the spring.

1. The electric valve should be stored in a dry and ventilated room, and both ends of the passage must be blocked.
2. The electric valve for long-term storage should be inspected regularly to remove dirt and apply anti-rust oil on the processing surface.
3. After installation, it should be inspected regularly, mainly for inspection items:
(1) Wear of the sealing surface.
(2) Trapezoidal thread wear of the stem and stem nut.
(3) Whether the filler is out of date or not, and if it is damaged, it should be replaced in time.
(4) After the electric valve is repaired and assembled, the sealing performance test shall be carried out.
The electric valve in operation, all kinds of valve parts should be complete and intact. The bolts on the flange and the bracket are indispensable, the thread should be intact and no looseness is allowed. The tightening nut on the hand wheel should be tightened if it is loose, so as not to wear the joint or lose the handwheel and nameplate. If the handwheel is lost, it is not allowed to replace it with a wrench. It should be timely. The packing gland is not allowed to be skewed or has no pre-tightening clearance. For electric valves in environments that are susceptible to contamination by rain, snow, dust, sand, etc., the valve stem should be fitted with a protective cover. The scale on the electric valve should remain complete, accurate and clear. Lead seals, caps, pneumatic accessories, etc. for electric valves should be completed. The insulation jacket should be free from dents and cracks. It is not allowed to hit, stand or support heavy objects on an operating electric valve; especially non-metallic electric valves and cast iron electric valves are prohibited.

PREVIOUS：Analyze the working principle of electric valNEXT：Electric valve common problem diagnosis and m