Electric valve usually linked by electric actuators and valves, become a motorized valve after installation and debugging.
Electric valve using electricity as the power to turn on the electric actuator drive valve, switch, adjust the valve
Section. So as to achieve medium switch or adjust the purpose of the pipes. Solenoid valve is one of the electric valve
A species; Is the use of the magnetic field generated by electromagnetic coil to pull the valve core, and transform the on and off of the valve body, the coil
Power cuts, the valve core is depend on the pressure of the spring return.
1 should be save dry ventilated room, electric valve, pathways, both ends must be blocked.
2, long-term storage of electric valve should be checked regularly, remove dirt, and rust-proof oil coating on the surface of the processing.
3, after installation, should check regularly, main inspection items:
(1) the sealing surface wear.
(2) of the stem and stem nut abrasion of trapezoidal thread.
(3) packing is outdated failure, if any, should be replaced in a timely manner.
(4) after repair of electric valve assembly, should carry on the sealing performance test.
The running of electric valve, all kinds of valves shall be complete and in good condition. Flange and bolt on the stent are indispensable,
Loose thread should be in good condition, there is no phenomenon. On the hand wheel fastening nut, such as loose found should be timely
Tight, so as not to wear joint or missing the handwheel and nameplate. The handwheel if there are any missing, do not allow the use of a wrench
For, should be complete in a timely manner. Packing gland are not allowed to skew or no preloaded gap. The susceptible to snow and rain, dust
Of electric valve, dust and other contaminants from the environment, the valve stem to install the shield. Electric valves
Rod should maintain complete, accurate and clear. Electric valve seal, blocks, such as pneumatic fittings should be complete
Good. Heat preservation jacket should have no sag, crack. Don't allow tapping, standing on the running of electric valves
Or bearing weight; Especially non-metal electric valves and electric valve, cast iron is prohibited.
