Forging steel low -temperature cutting valves is suitable for the management system of low -temperature liquid storage and transportation equipment. It has the characteristics of flexible opening and closing, sealing and reliable, and can also be used for other deep -cold and low -temperature media management systems. The normal temperature cut-off valve refers to the use temperature of the medium between -40 ~ 500 ° C, which is different depending on the valve body material. The low-temperature cut-off valve mainly refers to the cut-off valve in a low-temperature liquid medium system with a medium with -196 ~ -150 ° C.
Forging steel low -temperature intercept valve, the working temperature is extremely low. When designing this valve, in addition to the general valve design principles, there are some special requirements.
According to the conditions of use, the design of the low temperature valve has the following requirements:
1) The valve should have the ability to work for a long time at low temperature media and ambient temperature.
2) The valve should not be an important heat source for the low temperature system. This is because the inflow of heat not only reduces the thermal efficiency, but also leads to the rapid evaporation of the internal fluid, leading to abnormally increased pressure and danger.
3) Low -temperature medium does not have a harmful effect on the operation of the wheel operation and the sealing of the filler.
4) Valve components that are directly contacted with low temperature media should have explosion -proof and fireproof structure.
5) The valve components that work at low temperature cannot be lubricated, and structural measures should be taken to prevent the friction components from being scratched.
