Cleaning steps and daily maintenance of gate valve parts

Cleaning steps and daily maintenance of gate valve parts

The valve is the control element in the fluid delivery system. It has the functions of interception, regulation, diversion, prevention of reverse flow, stabilization, diversion or overflow, and pressure relief. So how do gate valve parts perform cleaning steps and routine maintenance? Let's take a look next.

This is the content list:

Gate valve parts cleaning steps

Daily maintenance of gate valve parts

Gate valve parts cleaning steps

Gate valve parts must go through the following process before assembly:

1. According to the processing requirements of gate valve parts, some gate valve parts need to be polished, and the surface must not have processing burrs, etc.;

2. All gate valve parts have undergone degreasing treatment;

3. After degreasing is completed, the gate valve parts are pickled and passivated, and the cleaning agent does not contain phosphorus;

4. Rinse with pure water after pickling and purification, without any residual medicine. Valve parts omit this step;

5. Dry the gate valve parts one by one with non-woven fabric, do not leave the surface of the parts such as velvet or dry it with clean nitrogen;

6. Wipe the gate valve parts one by one with non-woven fabric or precision filter paper dipped in analytical pure alcohol until there is no dirty color.

Daily maintenance of gate valve parts

1. Pay attention to the storage environment of gate valve parts, store them in a dry and ventilated room, and block both ends of the passage.

2. Regularly check the gate valve parts, remove the dirt on them, and apply anti-rust oil on the surface of the gate valve parts.

3. After the application is installed, the gate valve parts should be checked and repaired regularly to ensure that the gate valve parts work normally.

4. Check whether the sealing surface of the gate valve parts is worn, repair, or replace the gate valve parts according to the situation.

5. Check the wear of the trapezoidal thread of the valve stem and the valve stem nut, whether the gate valve parts packing has expired, etc., and replace the gate valve parts if necessary.

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

7. The valve parts in operation should be intact, the bolts on the flange and the bracket should be intact, and the threads should not be damaged or loose.

8. Lost valve parts and handwheels should be equipped in time and cannot be replaced with adjustable wrenches.

9. Valve parts packing glands are not allowed to be skewed or have no pre-tightening clearance.

10. When ball valve parts are used in harsh environments and are easily polluted by rain, snow, dust, sand, and other dirt, ball valve parts should be equipped with protective covers.

11. The scale of ball valve parts on the valve should be complete, accurate, and clear, and all parts of the valve should be sealed and capped.

12. There should be no dents or cracks in the insulation sleeve of ball valve parts.

13. Valves in operation, avoid hitting ball valve parts or supporting heavy objects.

JOC Machinery Co., Ltd. was established in 2000, specializing in foreign trade of mechanical parts and complete sets of equipment. The above is about the cleaning steps and daily maintenance of valve parts. If you are interested in valve accessories, gate valve accessories, ball valve accessories, you can contact us. Our website is http://www.jocmachinery.com. Looking forward to your visit and hope to cooperate with you.