高清国产一区二区三区在线-国产在线精品一区二区夜色-亚洲人成77777在线播放网站-亚洲精品久久久久久中文-无码 人妻 在线 视频

HC41X energy-saving sound-proof check valve is suitable for water supply and drainage pipeline. The disc is guided by the center axes at both ends of the inlet and outlet, flexible to open and close, and can be installed horizontally or vertically. The disc is loaded by spring, and its quick closing can effectively eliminate water hammer, good sealing performance and noise-free closing.It has the advantages of small size, light weight, small fluid resistance, fatigue resistance and long life.

Product model: H41X
Nominal diameter: DN40~600mm
Nominal pressure: PN1.0~ 2.5MPa
Applicable temperature: 0~80℃
Suitable medium: water
Main material: cast iron, ductile iron, carbon steel, etc