Daily electropneumatic valve maintenance and maintenance

electropneumatic valve maintenance and daily maintenance:
and electropneumatic valve should save dry indoor ventilation, pathways, both ends must be blocked.
and long-term storage of electropneumatic valve should be checked regularly, remove dirt, and rust-proof oil coating on the surface of the processing.
, after installation, should check regularly, main inspection items:
( Sealing surface wear.
　( Pneumatic valve stem and abrasion of trapezoidal thread of pneumatic stem nut.
　( Packing is outdated failure, if any, should be replaced in a timely manner.
　( Electric pneumatic valve repair after assembly, should carry on the sealing performance test.
the running electric pneumatic valve, pneumatic valve pieces should be complete, intact. Flange screw and bolt on the stent are indispensable, thread should be intact and are not allowed to have loose phenomenon. Loose fastening nut on the wheel, such as found should be tight in time, in order to avoid wear joint or missing the handwheel and nameplate. Wheel if you are lost, do not allow the use of a wrench, should be complete in a timely manner. Packing gland are not allowed to skew or no preloaded gap. For vulnerable to snow and rain, dust, sand and dirt from the environment of electric pneumatic valve, the pneumatic valve stem to install shield. Electric pneumatic valve rod should maintain complete, accurate and clear. Electric pneumatic valve seal, blocks, such as pneumatic accessories shall be complete in good condition. Heat preservation jacket should have no sag, crack. Not allowed to run in tapping, standing on the electric pneumatic valve or bearing the weight; Especially non-metal electropneumatic valve and cast iron electropneumatic valve.