Valve products are widely used, and the performance requirements of valves in different environmental occasions are also different. Here, our Hunan valve manufacturer will introduce a new type - low temperature valve. The working medium of low-temperature valve is mainly flammable and explosive substances, and the low temperature can reach - 269 ℃. Therefore, the following requirements are generally met in the design:

1)支持長時間低溫工作

1) Support long-time low-temperature operation

閥門及其組合件在低溫介質及周圍環境溫度下應具有長時間工作的能力(一般為10年或是3500~5000次循環);

The valve and its assembly shall be capable of working for a long time under low temperature medium and ambient temperature (generally 10 years or 3500 ~ 5000 cycles);

2)避免成為熱源

2) Avoid becoming a heat source

閥門相對于低溫介質，不應成為一個顯著熱源，這是因為熱量的流入會降低熱效率，而且熱量流入過多，還可能使閥門內部的低溫介質汽化，產生異常升壓，造成危險;

Compared with the low-temperature medium, the valve should not become a significant heat source, because the inflow of heat will reduce the thermal efficiency, and too much heat inflow may also vaporize the low-temperature medium inside the valve, resulting in abnormal pressure rise and danger;

3)手輪手輪不受低溫影響

3) The handwheel is not affected by low temperature

低溫介質不應對手輪的操作性能和填料的密封性能產生有害影響;

Low temperature medium shall not adversely affect the operating performance of handwheel and the sealing performance of packing;

4)防爆防火

4) Explosion proof and fire prevention

直接和低溫介質接觸的閥門組合件的結構應當符合相關的防爆和防火要求;

The structure of valve assemblies in direct contact with low-temperature medium shall meet relevant explosion-proof and fire-proof requirements;

5)預防摩擦部件擦傷

5) Prevent chafing parts

在低溫狀態下工作的閥門組合件不能潤滑，所以需要采取措施，防止摩擦部件被擦傷。

The valve assembly working at low temperature cannot be lubricated, so measures need to be taken to prevent the friction parts from being scratched.

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The above is the detailed introduction of Lianggong valve. I hope it will be helpful to you If you have any questions, please contact us We will provide you with professional service http://beiteer11.com