国产成人在线观看_青青草91视频_日韩一二在线_天天操91_国产精品内射后入合集_四库成人免费视频

ZLF self-operated balancing valve is a valve that takes advantage of the pressure change of the medium itself to self-regulate so as to keep the flow through the controlled system unchanged. ZLF self-balancing valve has flow indication and can be adjusted online, suitable for flow control of non-corrosive medium such as heating and air conditioning system.The one-time test adjustment before operation can make the system flow automatically constant at the preset set value.The valve has accurate flow regulation, simple operation, stable operation, reliable performance and long service life.

Product model: ZLF
Nominal diameter: DN15~350mm
Nominal pressure: PN0.6~ 2.5MPa
Applicable temperature: 0~100℃
Suitable medium: water
Main material: cast iron, carbon steel, etc