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

       低溫氣動調節(jié)閥是直通單、雙座調節(jié)閥的變型產品,低溫調節(jié)閥與常溫調節(jié)閥的不同之處是:
       1.采用長頸型上閥蓋,以保護填料處在較高溫度,使閥門在-60℃~-250℃的低溫下正常工作。
       2.低溫氣動調節(jié)閥閥體接管法蘭密封面上刻有同心圓的密封溝,并用浸蠟石棉橡膠板作密封板,密封效果較好。
       3.為了避免在深度低溫時一般鋼材的發(fā)脆現象,閥芯、閥座等零件均選用不銹耐酸鋼,閥體為不銹鋼或銅。

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