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

400X flow control valve is a multi-functional valve that adopts high precision pilot mode to control flow.It is suitable for piping which needs to control flow rate and pressure in distribution pipe, keep the predetermined flow rate unchanged, limit the excessive flow rate to a predetermined value, and reduce the upstream high pressure appropriately, even if the upstream pressure of main valve changes, it will not affect the downstream flow of main valve.This valve changes the principle that the conventional throttle valve USES orifice plate or purely mechanically reduces the drainage area, and USES the relevant guide valve to minimize the loss of energy in the throttling process.The 400XA flow control valve can completely shut off flow in case of emergency to avoid loss.High control sensitivity, safety and reliability, easy debugging, long service life.

Product model: 400X
Nominal diameter: DN20~800mm
Nominal pressure: PN1.0~ 2.5MPa
Applicable temperature: 0~80℃
Suitable medium: water
Main material: cast iron, carbon steel, etc