Precautions and common problems in valve maintenance

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

2.Valves stored for a long time should be inspected regularly to remove dirt and apply anti rust oil on the machined surface.

3.After installation, regular inspection shall be carried out. The main inspection items are as follows:

4.Wear condition of sealing surface.

5.Wear of trapezoidal thread of stem and stem nut.

6.Whether the packing is out of date and invalid.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

7.After the valve is repaired and assembled, the sealing performance test shall be carried out.