Flow control valves

3 port flow control valve

ventil protoka

This valve enables to keep "P" flow constant to a certain setting, independently of the required pressure or the inlet flow of the valve. Exceeded flow is drained in "B" and it is available for a second use. Also port "B" is insensitive to pressure changes but not to flow changes.
Sizes:

  • G 1/4"
  • G 3/8"
  • G 1/2"
  • G 3/4"
  • G 1"
  • Hydraulic scheme

Connect E to the pressure flow and P to the actuator or to a line of an hydraulic circuit where flow adjustment is needed. Connect B to the tank or to a second actuator. To adjust inlet pressure in P screw in or off hand wheel after loosening the locknut.

shema regulatora protoka

Flow control valve with check valve


regulator protoka

This valve is used to adjust flow speed of actuators in one direction; flow is free in the reverse one. As pressure compensation is not provided, flow adjustment depends on pressure and fluid viscosity. High adjustment sensitivity.
Sizes:

  • G 1/4"
  • G 3/8"
  • G 1/2"
  • G 3/4"
  • G 1"
  • Hydraulic scheme

Connect V to the pressure flow and C to the actuator to set; flow is adjust from C to V and is free in the reverse direction. When used on actuator with double pilot check valve, VRFU 90° has to be mounted between the actuator and the double pilot check valve. Flow adjustment is made by rotating the plastic hand knob after loosening the side locking screw. This particular configuration allows an accurate and sensitive adjustment.

regulator protoka shema


Flow control valve

ventil protoka

This valve is used to adjust flow speed of actuators in both directions. As pressure compensation is not provided, flow adjustment depends on pressure and fluid viscosity. High adjustment sensitivity.
Sizes:

  • G 1/4"
  • G 3/8"
  • G 1/2"
  • G 3/4"
  • G 1"
  • Hydraulic scheme

Connect a port to the pressure. Flow will be adjusted in the other one. When used on actuator with double pilot check valve, VRFB90° has to be mounted between the actuator and the double pilot check valve. Flow adjustment is made by rotating the plastic hand knob after loosening the side locking screw. This particular configuratio nallows an accurate and sensitive adjustment.

shema regulatora protoka