用途及特点USAHE AND CHARACTERISTICS   微阻球形止回阀，采用橡胶包皮球为阀瓣，在介质的作用下，可在阀体内的滑道上滚动，从而打开或关闭阀门。流量大流阻损失小，密封性能好，消声关闭，可减小水击波。水平或垂直安装均可。可用于冷水、热土、工业及生活污水等管网的水泵出口，防止介质倒流。
It uses the rubber covered roller as the disc, which, under the action of the medium, can roll up  an down along with the sliding path inside of the valve so as to open or close it, and features a big flow, small flow-resistance loss, good tightness, silenced close and reduced water shock wave, It is vertically or horizontally mountable and can be used on the outlet of the water pump of the cold-water, hot-water, industrial and living sludge pipe networks to prevent the medium from going back.

主要技术参数 MAIN TECHNICAL PARAMETRS

主要外形尺寸及连接尺寸MAIN EXTERNAL ANDCONNECTIONG DIMENSIONS

主要外形尺寸及连接尺寸MAIN EXTERNAL ANDCONNECTIONG DIMENSIONS