当前位置: 首页 行业新闻 卫生级隔膜阀简介

行业新闻

原文:
卫生级隔膜阀简介:
卫生级隔膜阀是一种特殊形式的截断阀。
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,故称隔膜阀。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。
1、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。
2、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。
3、隔膜阀按结构形式可分为:屋式隔膜阀、直流式隔膜阀、截止式隔膜阀、直通式隔膜阀、闸板式隔膜阀和直角式隔膜阀六种;连接形式通常为法兰连接(快装连接);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。  
卫生级隔膜阀是利用阀杆将弹性体薄膜紧压在阀座上用来隔断气路。转动手轮可带动阀杆上、下移动,使隔膜离开阀座打开阀门或使隔膜紧压在阀座上关闭阀门。此种阀门如采用丁晴橡胶隔膜(硅胶膜片,三元乙丙等),适用于前级和预抽管道上及温度为-25~80℃的非腐蚀性气体。如采用氟橡胶隔膜,可用于高真空系统,使用温度范围为-30~150℃。

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。卫生级隔膜阀简介。
以下是参考译文:

译文:
Health level of the diaphragm valve's brief introduction:
Health level of the diaphragm valve is a special kind of block valves.
Its opening and closing is a diaphragm, made with soft materials within the valve body cavity with the valve cover cavity and drive components separated, therefore calls the diaphragm valve. The characteristics of the diaphragm valve is as follows: the most prominent feature is the lower part of the diaphragm valve body cavity and the upper cover inner chamber is separated, the located above the diaphragm of the stem and disc parts from corrosion medium, such as eliminating the packing seal structure, and won't produce leakage of medium.
1, made of rubber or plastic soft seal diaphragm, sealing is good. Because the diaphragm for wearing parts, should be replaced periodically depending on the dielectric properties.
2, restricted by the diaphragm material, diaphragm valve is suitable for the occasion of relatively low pressure and temperature is not high.
3, the diaphragm valve can be divided into: the form of the structure of house type diaphragm valve, once-through diaphragm valve, cut-off valve, straight through the diaphragm valve, diaphragm gate type diaphragm valve and rectangular diaphragm valve six; Form is usually connected with flange connection (fast); According to the drive mode can be divided into manual, electric and pneumatic three, including pneumatic drive is divided into often open, often closed and reciprocating three.
Health level of the diaphragm valve is to use the valve stem will elastomer membrane press used to partition gas path on the seat. Turn the handwheel to drive the valve stem, mobile, from the diaphragm seat valve open or close valve diaphragm compression on the seat. The diaphragm valves such as nitrile butadiene rubber (silicon diaphragm, epdm, etc.), applicable to the former level and drainage pipeline and the temperature is 25 ~ 80 ℃ the corrosive gas. If use fluorine rubber diaphragm and can be used for high vacuum system, using temperature range is - 30 ~ 150 ℃.
卫生级隔膜阀简介。

原文标题:“卫生级隔膜阀简介”

更多隔膜阀新闻:

堰式隔膜阀

手动隔膜阀安装前准备工作

隔膜阀的基本知识、结构、及应用