The role of the valve is mainly to isolate the equipment and the pipeline system, regulate the flow, prevent back-flow, regulate and discharge the pressure. It is the control element in the fluid pipeline system. The role is very small. Let me introduce you to the daily maintenance method of the valve.
1. The storage environment of the valve should be paid attention to. It should be stored in a dry and ventilated room and block both ends of the passage.
2. The valve should be checked regularly, and the dirt on it should be removed, and anti-rust oil should be applied on the surface.
3. After installing and applying the valve, it should be regularly inspected to ensure its normal operation.
4. Check whether the sealing surface of the valve is worn, and repair or replace it according to the situation.
5. Check the wear of trapezoidal threads of the stem and stem nut, whether the packing is out of date, etc., and make necessary replacements.
6. The sealing performance of the valve should be tested to ensure its performance.
7. The valve in operation should be intact, the bolts on the flange and the bracket are complete, the thread is not damaged, and there is no looseness.
8.If the hand-wheel is lost, it should be equipped in time and cannot be replaced with a spanner wrench.
9. Packing gland is not allowed to skew or have no pre-tightening gap.
10. If the valve is used in a harsh environment and is susceptible to rain, snow, dust, sand and other contaminants, a protective cover should be installed for the valve stem.
11. The scale on the valve should be kept complete, accurate and clear, and the lead seal and cap of the valve should be kept.
12. The insulation jacket should be free of dents and cracks.
13. The valve in operation should avoid knocking on it or supporting heavy objects.
