力士乐管式单向阀S10A3.0
武汉百士自动化设备有限公司专注于液压、气动、工控自动化备件销售，热诚欢迎新老客户咨询购买！
博世力士乐rexroth管式单向阀 博世力士乐rexroth管式单向阀
力士乐rexroth管式液压阀 力士乐rexroth管式单向阀 力士乐流量阀
单向阀是气流只能一个方向流动而不能反向流动的方向控制阀。其工作原理与液压单向阀一样。压缩空气从P口进入，克服弹簧力和摩擦力使单向阀阀口开启，压缩空气从P流至A；当P口无压缩空气时，在弹簧力和A口(腔)余气力作用下；阀口处于关闭状 态，使从A至P气流不通。单向阀应用于不允许气流反向流动的场合，如空压机向气罐充气 时，在空压机与气罐之间设置一单向阀，当空压机停止工作时，可防止气罐中的压缩空气回流 到空压机。单向阀还常与节流阀、顺序阀等组合成单向节流阀、单向顺序阀使用。
5止回阀
止回阀用途广，有很多种类，下面说的是供水和热力常用的止回阀：
1、弹簧式：液体由下而上，依靠压力顶起弹簧控制的阀瓣，压力消失后，弹簧力将阀瓣压下，封闭液体倒流。常用于通径较小的止回阀。
2、重力式：和弹簧式相似，依靠阀瓣的自身重力封闭，防止倒流。
3、旋启式：液体在阀体内直通，依靠压力顶开一侧的旋转阀瓣，压力失去后，阀瓣依靠自重回位，反向的液体压力封闭阀瓣。
4.塑料隔膜式: 外壳和隔膜均为塑料.一般外壳为ABS,PE,PP,NYLON, PC.隔膜有硅树脂,氟树脂等。
其它的单向阀（止回阀），如排污的止回阀，人防的防爆阀和液体使用的止回阀的原理是大同小异。
每个单向阀均在**工作压力下用氮气进行密封性测试。
CV型
1.弹性密封圈阀座，无噪音，有效止回；
2.**工作压力：207 bar (3000 psig)；
3.多种端接和阀体材料。
CH型
1.浮动密封圈，防止污染物影响密封；
2.**工作压力：414 bar (6000 psig)；
3.多种端接和阀体材料。
CO型
1.一体式阀体，结构紧凑；
2.**工作压力：207 bar (3000 psig)；
3.多种端接和阀体材料。
COA型
1.一体式阀体，结构紧凑；
2.**工作压力：207 bar (3000 psig)；
3.多种端接和阀体材料。
CL型
1.**工作压力：414 bar (6000 psig)；
2.多种端接和阀体材料；
3.联合阀帽设计，更安全，全金属结构，水平方向安装，阀帽螺母在上部。
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