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The difference between low temperature pneumatic control valve and normal temperature
The author: Time:2019/11/18

       低温气动调节阀是直通单、双座调节阀的变型产品,低温调节阀与常温调节阀的不同之处是:
       1.采用长颈型上阀盖,以保护填料处在较高温度,使阀门在-60℃~-250℃的低温下正常工作。
       2.低温气动调节阀阀体接管法兰密封面上刻有同心圆的密封沟,并用浸蜡石棉橡胶板作密封板,密封效果较好。
       3.为了避免在深度低温时一般钢材的发脆现象,阀芯、阀座等零件均选用不锈耐酸钢,阀体为不锈钢或铜。

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