Valve welding inspection is generally divided into two parts:

Carefully read the valve manual to understand the basic structure and principle.

If there is leakage beyond the rated range between the valve disc and the valve seat of the safety valve, it will lead to the loss of the medium,

Check valve refers to the valve that automatically opens and closes the valve flap by relying on the flow of the medium itself to prevent the backflow of the medium,

A key national oil and gas infrastructure project, Changqing Oilfield Sudong 39-61 gas storage was officially completed and put into production.

Welding slag, rust, slag, etc. in the pipeline cause blockage or jam in the throttle, guide part, and balance hole of the lower bonnet

With the development of society and economy, the use of valves is becoming more and more extensive, and there are many varieties of valves used in pipelines.

In the automatic control of modern factories, regulating valves play a very important role

When using the equipment, regular maintenance is necessary. Of course, maintenance is not to meet the responsibility, but through the maintenance work

After the worm gear butterfly valve is installed and put into work, it is necessary to pay attention to the maintenance of the worm gear butterfly valve.

The flow rate and flow rate of the valve mainly depend on the diameter of the valve, and it is also related to the resistance of the valve structure to the medium.

Because air is compressible, the stability of pneumatic transmission system is poor. Compared with gas, the compressibility of hydraulic oil is small, so hydraulic transmission works smoothly.

What is the function of the valve of the high and low temperature cycle temperature control system? What problems should be paid attention to when installing the valve?

As the name suggests, a low temperature valve is a valve that can work in cryogenic low temperatureconditions. To demarcate its working temperature, a valve with a working temperature below -40 °C is usually called a low temperature valve.

Bellowsgatevalvesarerelativelywidelyusedinpetrochemicalindustry,metallurgicalindustry, etc. A valve can be relatively widely used in many fields.