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Valve Daily Maintenance Daquan
Nov 28, 2017

Valve in the fluid system, used to control the direction of the fluid, pressure, flow device. Valves are devices that allow the flow and stop of the media (liquid, gas, powder) in the piping and equipment and control their flow.

1.the valve storage environment should pay attention to, should be stored in a dry and ventilated room, and plug the ends of the pathway.

2.the valve should be checked regularly, and remove the dirt on it, smear anti-rust oil coated on its surface.

3.install the valve after the application should be regularly overhaul to ensure its normal work.

4.should check the valve sealing surface is worn, and under repair or replacement.

5.check the stem and stem nut trapezoidal thread wear, filler is out of date failure, etc., and make the necessary replacement.

6.the sealing performance of the valve should be tested to ensure its performance.

7.the valve in operation should be intact, the flange bolts and bolts on the bracket complete, non-destructive thread, no loose phenomenon.

8.If the handwheel is lost, it should be timely and can not be replaced by a live spanner.

9.packing gland does not allow skew or no preload gap.

10.if the valve environment is more harsh, vulnerable to rain, snow, dust, sand and other contaminants, you should install the protective cover for the stem.

11.the valve on the ruler should be kept intact, accurate and clear, the valve seals, caps, pneumatic accessories, etc. should be complete and intact.

12.insulation jacket should be no depression, cracks.