Who knows the valve repair procedure procedure, valve repair method and manufacturer inventory

Hello, there are many types of valves, the valves that need to be repaired are mainly metal valves, the friends upstairs are right, the valves are roughly divided into wind systems, water systems and gas systems, and the valve tightness requirements are increased in turn. Valve maintenance can be purchased by yourself for equipment maintenance, or sent to the maintenance plant for maintenance, and the main maintenance to the maintenance plant is mainly ball valves. The equipment for valve repair is mainly valve grinder, and valve grinder is the best tool to repair valves efficiently.

The steps for using the valve grinder are as follows:

1. Coarse grinding: the purpose of the operation is to smooth out the deep groove pits on the sealing surface of the valve.

2. Fine grinding: the purpose of the operation is to scratch the abrasive cloth when grinding coarsely grinding.

3. Fine grinding: the purpose of operation is to inspect the sealing surface of medium and low-pressure valves, and to inspect the imprints of "Verde Line" 4. Polishing: the purpose of operation is to inspect the scratches on the sealing surface of high-pressure valves and all safety valves, and to find and prevent fracture lines and penetrating scratches.

5. Study: The purpose of the operation is to grind the matching surface of the cone cut-off valve and the safety valve to each other and check the sealing of the Verde wire.

It depends on what kind of valve it is! If it is an electric butterfly valve, the first step is to see whether the electric device is good, whether it is not good to replace the same type of Denso, the second step is whether the valve plate is deformed and not closed tightly, if not, it can be replaced! The third step is to do a seal test! It can be based on the actual situation!

The landlord's question is too general, you want to repair the valve when the water system or the gas system. I don't know much about the water system. I know a little more about air and wind systems.

If you are talking about the major failure of the valves of the metallurgical gas and wind system, it is recommended that you can only return to the factory for repair, because most of the valves of the metallurgical system must be tested for strength and air tightness after repair.

Here are some well-known brands recognized in the valve industry, which are widely recognized and have a high reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:

The following influential first-line brands of water system valves and industrial valves can be used as a reference, but for reference only: Suzhou Neway Valve, Shanghai Guanlong Valve, Shanghai Qizhong Valve, Sanhua, Chaoda, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only the role of estimation and banquet reference, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are changing rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.

<>1. According to the processing requirements, some parts need to be polished, and there can be no processing burrs on the surface;

2. All parts are degreased;

3. After the degreasing is completed, pickling and passivation will be carried out, and the cleaning agent does not contain phosphorus;

4. After pickling and purification, rinse with pure water, there can be no residue of chemicals, and carbon steel parts omit this step;

5. Wipe and dry each part with non-woven fabric, and do not retain the surface of the parts such as wire wool, or blow dry with clean nitrogen;

6. Wipe each part with non-woven fabric or precision filter paper dipped in pure alcohol until there is no dirty color.

Shenyang multi-mechanical equipment is a senior engineer of Shenyang Aircraft Industry Group for the backbone of the components. The core competence of Shenyang multi-equipment is on-site welding, on-site boring, and grinding. Valve modification, seat replacement.

Valve system repair Shenyang multi-mechanical equipment **** ranks first in China's power system.

Find a repair company to repair the fastest way!! Besides, it's not expensive, change it!

Routine maintenance. 1. Attention should be paid to the storage environment of the valve, which should be stored in a dry and ventilated room, and both ends of the passage should be blocked.

2. The valve should be checked regularly, and the dirt on it should be removed, and the anti-rust oil should be applied on its surface.

3. After installation and application, the valve should be regularly overhauled 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 trapezoidal thread wear of the valve stem and valve stem nut, whether the packing is outdated and invalid, etc., and replace it as necessary.

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 thread is not damaged, and there is no loosening phenomenon.

8. If the handwheel is lost, it should be completed in time, and it cannot be replaced by an old wrench.

9. The packing gland is not allowed to be skewed or there is no preload clearance.

10. If the valve is used in a harsh environment and is susceptible to contamination by rain, snow, dust, wind and sand, a protective cover should be installed for the valve stem.

11. The ruler on the valve should be kept intact, accurate and clear, and the lead seal and cap of the valve.

12. The insulation jacket should be free of depressions and cracks.

13. Avoid knocking on the valve in operation, or supporting heavy objects.