产品名称： 对夹升降式止回阀

产品型号： H71H/W

公称压力： 1.0-4.0Mpa

产品规格： DN15-250

适用温度： ≤200℃

适用介质： 适用介质：水、油品、蒸气

本实用新型全部材料采用耐腐蚀不锈钢。可在任何位置的管路上安装，防止介质逆流，锅炉给水系统上回，其连接方式是利用原有管道两端法兰对夹即可投入运行。其各项指标都优于目前市售的任何一种上回阀。它的运用范围广泛，凡水、气、油、酸、碱液、氢、氨、特别消防管道等介质均可使用。

  Whole material of this practical new type uses corrosion preventive stainless steel.Can install on the road at the pipe of any seat,preventing the medium go against the current,the boiler is to river system all last times,and namely his attended mode is using original pipeline both ends flanges can dive into the operating to the clamp.Any one kind of last time valve that his all quota all is superior to at present that sells in the city.Its application scope be extensively,and the medium such as Shui Qi,oil,acid,lye,hydrogen,ammonia and special fire fighting pipeline etc all can use altogether.

阀体材料Body material：WCB、1CR18Ni9Ti、CF3、CF8、CF3M、CF8M。