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原文:
隔膜阀介绍
隔膜阀是一种特殊形式的截断阀,出现于20世纪20年代。它的启闭件是一块用软质材料制成的隔膜,把阀体内腔与阀盖内腔及驱动部件 隔开,故称隔膜。
隔膜阀的特点如下:
最突出特点是隔膜把下部阀体内腔与上部阀盖内腔隔开,使位于隔膜上方的阀杆、阀瓣等零件不受介质腐蚀,省去了填料密封结构,且 不会产生介质外漏。
采用橡胶或塑料等软质密封制作的隔膜,密封性较好。由于隔膜为易损件,应视介质特性而定期更换。 受隔膜材料限制,隔膜阀适用于低压和温度相对不高的场合。
隔膜阀按结构形式可分为:屋式、直流式、截止式、直通式、闸板式和直角式六种;连接形式通常为法兰连接;按驱动方式可分为手动、电 动和气动三种,其中气动驱动又分为常开式、常闭式和往复式三种。

更多隔膜阀产品,请登录 http://www.gemofa.org 中国隔膜阀网 ,我们将竭诚为您服务。隔 膜阀相关介绍。
以下是参考译文:

译文:
Diaphragm valve The diaphragm valve is a special form of cut-off valve, appeared in twentieth Century 20's.. It's opening and closing parts is a material with a soft membrane made of, the body cavity with the valve cover cavity and drive components are separated, it said diaphragm.
The following characteristics of diaphragm valve:
The most prominent characteristic of the diaphragm to the lower part of the body cavity and the upper chamber separated from the valve cover, so that the diaphragm is located above the valve stem, valve and other parts from corrosion, eliminating the need for packing structure, and no media leaks.
Made of rubber or plastic membrane made of soft sealing, sealing well. As for the vulnerability of the diaphragm, should be replaced periodically depending on the media characteristics.
Limited by the diaphragm material, diaphragm valve suitable for low pressure and high temperature.
Diaphragm valve structure can be divided into: house type, DC type, close type, straight type, gate and right angle type six; connection usually in the form of flange connection; according to drive mode can be divided into manual, electric and pneumatic three, which is divided into pneumatic drive, normally closed and normally open reciprocating three.隔膜阀相关介 绍。

原文标题:“隔膜阀相关介绍”

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