RSI消声止回阀
RSI silence check valve
1、阀体 2、衬套 3、阀瓣4、弹簧
用途与性能特点
该消声止回阀主要适用于高层建筑供水、排水系统，消防管道给水系统等。此消声止回阀可有效地防止介质倒流而产生破坏性水锤保护水泵和管道其它设备。其阀的主要性能特点如下：
1、此阀可立式、卧式安装，阀瓣升降灵活，且运行平稳、噪音低、安全、极少有故障
2、结构合理、密封性能好
3、耐磨损，使用寿命长
Application and performance characteristics
The silencing check valve is mainly suitable for water supply and drainage system of high-rise buildings, fire pipeline water supply system, etc. The silencing check valve can effectively prevent the media from backflow and produce destructive water hammer protection pump and pipeline other equipment. The main performance characteristics of the valve are as follows:
1, the valve can be vertical, horizontal installation, valve flap lift flexible, and smooth operation, low noise, safety, rarely failure
2, reasonable structure, good sealing performance
3, wear resistance, long service life
工作原理
消声止回阀主要由阀体、阀瓣、弹簧、出口并帽等构造而成，其工作原理如下：
当没有介质流过阀门时，阀在弹簧预紧力的作用下处于关闭状态。当有介质流过阀门，介质压力能克服弹簧预紧时，阀瓣开启当介质逆流时，逆流介质压力与弹簧预紧力的总和使得阀瓣关闭，防止介质逆流。
Working principle
Silent check valve is mainly composed of valve body, valve disc, spring, outlet cap and other structures, its working principle is as follows:
When no medium flows through the valve, the valve is closed under the action of the spring preload. When there is a medium flowing through the valve, the medium pressure can overcome the spring preload, the valve disc is opened when the medium countercurrent, the sum of the countercurrent medium pressure and the spring preload force makes the valve disc closed to prevent the medium countercurrent.
主要连接尺寸、结构尺寸
Main connection size, structure size
性能参数
Performance parameter
