1、工作腔及螺桿轉子表面有防腐涂層，可適應惡劣工況


2、氣體在泵內無壓縮，適宜抽取可凝性氣體


3、不耗油，無滴漏


4、結構簡單，維護方便。


5、被抽氣體直接排出泵體，不污染水，無環保壓力，氣體回收更便捷。


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