1, the valve should be stored in a dry and ventilated room, both ends of the channel must be blocked.

2, long-term storage of the valve should be regularly checked, remove dirt, and on the processing surface coated with anti-rust oil.

3, after installation, should be regularly checked, the main inspection items:

(1) wear of sealing surface.

(2) Trapezoidal thread wear of stem and stem nut.

(3) Whether the packing is out of date and invalid. If damaged, it should be replaced in time.

(4) after the repair and assembly of the valve, the sealing performance test should be carried out.

Valve in operation, all kinds of valve parts should be complete and intact.Bolts on the flange and bracket are indispensable. Thread should be intact and no loosening is allowed.Fastening nut on handwheel, if found loose should be tightened in time, so as not to wear the connection or lose the handwheel and nameplate.If the hand wheel is lost, the adjustable spanner is not allowed to replace it. It should be equipped in time.The packing gland is not allowed to skew or have no preload clearance.The valve stem should be equipped with a protective cover in the environment where it is easily contaminated by rain, snow, dust, sand and other dirt.The gauge on the valve shall be complete, accurate and clear.The seal, cap and pneumatic accessories of the valve should be complete and intact.Thermal insulation jacket should have no depression, crack.

Do not knock, stand or support heavy objects on the valve in operation;In particular, non-metallic valves and cast iron valves should be prohibited. 

Minchuang stainless steel ball valve.