At present, the ultra-high pressure valves produced by some domestic valve companies have been widely used in petrochemical, chemical, super-hard materials, processing technology, super-hard material manufacturing, super-static extrusion, metal forming, powder metallurgy, geophysical and geological scientific research And other fields. The wide application of ultra-high pressure technology makes the performance of ultra-high pressure valves in ultra-high pressure systems directly affect the safety, reliability, efficiency and life of the entire system. It is particularly important for water heater solenoid valves, which must be frequently pressurized and depressurized.

The failure of the ultra-high pressure valve is mainly due to cavitation and erosion. There are many factors that affect the cavitation and erosion of the solenoid valve of the gas stove, mainly including the mechanical properties of the material, fluid mechanics factors, and environmental factors. There are many ways to improve the valve's ability to resist cavitation and erosion.

High voltage valve material selection

In order to improve the corrosion resistance and wear performance of ultra-high pressure valves, commonly used anti-corrosion materials are:

Materials with higher hardness.

Use of high fatigue strength materials.

High yield point and good material stability.

A material with a protective film against acid corrosion.

In order to prolong the service life of high-pressure valves, the working environment of high-temperature solenoid valves should also be considered:

When installing or replacing the needle valve, the valve should be properly cleaned. Avoid bringing in debris and accelerate the wear of the needle valve.

Avoid valves with high temperature media. The temperature of the media has a great influence on the life of the valve. The higher the temperature of the medium, the shorter the life of the valve, and vice versa. Therefore, adding a cooling device to the pressure relief valve can also significantly increase the service life of the valve.

Avoid the valve working in a small opening. If the opening lift of the valve needle is small or the opening action is slow, working at a small opening, the throttle clearance is small, and the corrosion is serious. Increase the screw pitch of the locking mechanism appropriately to increase the opening Speed and lift, increase the working opening, make the throttle gap large, weaken the scouring, and increase the service life.

4. Regularly filter the high-pressure medium, purify the filter, add the liquid, the filter screen can be used. For frequent use, the use time should be shortened appropriately. According to the actual working conditions of the equipment, the oil tank is cleaned regularly and the new medium is replaced at the same time, which can shorten the cleaning and oil change interval.

Under different working pressures, use the corresponding sealing pressure, select the appropriate sealing pressure, use a torque wrench to lock, or realize automatic valve control to prevent the valve needle from being damaged by the squeeze of the valve seat, without being worn and Scour.