YCF2000 Series Dynamic Differential Pressure Balance Valve

   The arrow direction on the valve body shall be consistent with the direction of medium flow.

   The valve shall be installed on the return pipe and connected an impulse pipe, and the other end of the impulse pipe is con-nected with the water supply pipe. It is recommended to install a 1/2 "ball valve at the water supply end of the impulse pipe to activate the function of eliminating blockage.

   A filter screen shall be installed on the water supply pipe in front of the impulse pipe to prevent the valve from losing its auto-
matic regulation function due to poor water quality.

   The water supply pipe and the return pipe in front of the valve shall be respectively equipped with pressure meters to facilitatethe adjustment and control differential pressure.

   If the flow of the system is too large or too small, the possible cause is that the sundries during the installation of the pipelineelements are stuck on the valve plug. Close the 1/2 "ball valve for 3-5 minutes, the light blockage can be eliminated automatically.

If it cannot be eliminated, the valve should be disassembled to check and eliminate the blockage.

   Adjustment of control differential pressure adjust the pressure regulating stem counterclockwise. When the pressure meter in
front of the valve decreases by 0.0lMPa, the control differential pressure willincrease from the set 0.02MPa to 0.03MPa, and so on.

   The working diferential pressure of the valve is 0.03-0.3MPa. Ifit is found that the working differential pressure of the valveisgreater than 0.3MPa after installation, a manual control valve should be instaled on the water supply pipe to reduce the differen-tial pressure of the water supply and return pipes at the thermal inlet device. Otherwise, the diferential pressure valve may onlywork under a small opening for long, which will generate noise and greatly reduce the service life of the valve.