美国RYAN瑞恩阀门有限公司

　　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;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。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，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℃

　　隔膜阀特点:

　　1．弹性密封的开闭件，阀体密封堰槽采用弧形设计结构，确保没有内漏；

　　2．流线型的流道，使得阻力减小；

　　3．阀体与盖被中间隔膜隔开，使得隔膜上方的阀盖，阀杆等零件不受介质侵蚀；

　　4．隔膜可更换，维护费用低

　　5．目测式位置显示开关状态

　　6．多种表面抛光技术，无死角，在正常位置下无残留。

　　7．结构紧凑，适用与狭小的空间。

　　隔膜优点:可安装于任何位置，介质流向对阀门开闭不影响阀体使用球体堰槽密封，结构可延长隔膜片的使用寿命提供所有现行的卡接和焊接的工业。

　　隔膜阀广泛应用于:发酵罐、配制罐、灌装机、冷冻干燥设备、无菌过滤器、制水设备、PW、WFI 输送与分配无菌超滤机、无菌流体输送及CIP、SIP等制药、食品饮料、流体设备、化妆品、酿酒、轻化工等

　　美国RYAN瑞恩阀门的产品:

　　气动隔膜阀、电动隔膜阀、手动隔膜阀、衬胶隔膜阀、衬氟隔膜阀、气动手动隔膜阀、不锈钢隔膜阀、铸铁隔膜阀、铸钢隔膜阀、隔膜阀标准、隔膜阀选型、隔膜阀作用

　　代理公司:上海东格阀门有限公司

　　Using rubber or plastic membrane made of soft sealing, seal better. As for the vulnerability of the diaphragm, should be replaced periodically depending on the media characteristics. Limited by the diaphragm material, diaphragm valves for low pressure and relatively high temperature applications.

　　Diaphragm valves can be classified according to structure : housing type diaphragm valve, DC diaphragm valve, diaphragm valve, diaphragm valve, gate valve and a diaphragm valve six; connection usually takes the form of flange connection; by driving method can be divided into manual, electric and pneumatic three, wherein the gas pneumatic drive is divided again for normally open, normally closed, and three kinds of reciprocating. Diaphragm valve is the use of the stem elastomer film is pressed on the valve to cut off gas. Rotate the hand wheel can drive the valve rod to move up and down, so that the diaphragm away from the valve seat to open the valve or the diaphragm pressing on the valve seat to close the valve. The valve such as the use of Dingqing rubber diaphragm, applicable to the front stage and drainage pipeline and the temperature is -25 ℃ ~ 80 ℃noncorrosive gas. Such as the use of fluorine rubber diaphragm, can be used in high vacuum system, temperature range is -30 ℃ ~ 150 ℃

　　Diaphragm valve:The 1 resilient sealing opening and closing piece, the valve sealing weir groove using arc design structure, to ensure that no leakage;2 streamline flow passage, the drag reduction;The 3 valve body and cover are intermediate diaphragm separates, the above the diaphragm valve cover, valve and other parts is not corroded by the medium;A 4 diaphragm replacement, low maintenance costThe 5 visual type position display switch state6 kinds of surface polishing technology, no dead angle, no residue in the normal position.7 has the advantages of compact structure, and the application of the narrow space.

　　The diaphragm has the advantages: it can be installed in any position, medium to flow to the valve opening and closing valve ball does not affect use weir groove seal structure of diaphragm, can prolong the life of all existing clamping and welding industry.Diaphragm valves are widely used in: fermentation tank, preparation tank, filling machine, drying equipment, sterile filters, water equipment, PW, WFI transport and distribution of sterile sterile fluid transport and ultrafiltration machine, CIP, SIP, pharmaceutical, food and beverage, fluid equipment, cosmetics, wine, light industry etc.

　　The United States of America RYAN Ryan valve products:Pneumatic diaphragm valve, diaphragm valve, diaphragm valve, rubber lined diaphragm valves, fluorine lined diaphragm valve, pneumatic diaphragm valve, stainless steel diaphragm valve, cast iron diaphragm valve, diaphragm valve, diaphragm valve, diaphragm valve, diaphragm valve selection

　　contact: Mr. Weng