Valve Daily Maintenance

1. Pay attention to the storage environment of the valve. It should be stored in a dry and ventilated room, and both ends of the passage should be blocked.
2. The valve should be inspected regularly, dirt on it should be removed, and anti-rust oil should be applied on its surface.
3. After installation and application, the valve should be regularly inspected to ensure its normal operation.
4. Check whether the valve sealing surface is worn, and repair or replace it according to the situation.
5. Check the trapezoidal thread wear of the valve stem and valve stem nut, whether the packing is out of date, etc., and make necessary replacements.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 in good condition, the bolts on the flange and bracket are complete, the threads are not damaged, and there is no looseness.
8. If the handwheel is lost, it should be replaced in time, and an adjustable wrench cannot be used to replace it.
9. The packing gland is not allowed to be skewed or have no preload gap.
10. If the valve is used in a harsh environment and is easily contaminated by rain, snow, dust, sand and other contaminants, a protective cover should be installed on 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 have no dents or cracks.
13. When the valve is in operation, avoid knocking it or supporting heavy objects.