Use and Operation
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.
Port “B” is insensitive to pressure changes but not to flow changes.
Materials and Features
Applications
Connect E to the pressure flow. Connect 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.
Use and Operation
This valve is used in a 2 parallel-working pumps circuit in order to release the excess of the higher flow pump to the tank when this gets the required pressure setting. Since this moment and on the actuator works with the lower flow pumps at higher pressure, consuming less energy.
Materials and Features
Applications:
Connect BP to the higher flow pump, AP to the lower flow pump, T to the tank, M to the eventual manometer and U as for necessity.
Use and Operation
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.
Materials and Features
Applications
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.
Use and Operation
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.
Materials and Features
Applications
Connect a port to the pressure. Flow will be adjusted in the other one. 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.
Use and Operation
For mounting between the end of a flexible hose and a fixed component to compensate hose’s rotations and torsion and to prevent its damaging. Not suitable for fast and continuous rotations. Used in every production field where systems have flexible moving hose. In line mounting.
Materials and Features
Applications
Connect ports P to the uses.
TYPE: VU
Use and Operation
In the check valves flow is free in one direction and blocked in the reverse one.
Materials and Features
Applications
Connect V to the pressure flow and C to the actuator. Flow is free from V to C and blocked in the reverse direction.
TYPE: VRPRL
Use and Operation
This valve allows to preserve constant the pressure downstream, regardless of the upstream pressure. The check valve allows the free return of the oil.
Materials and Features
Applications
Connect P to the main circuit, the port Reg. to the circuit where you want to reduce pressure and port T to the tank.
TYPE: VBCD
Use and Operation
These valves are used to control actuator’s movements and block in both directions in order to have a under control descent of a load; load’s weight doesn’t carry it away, as the valve prevents any cavitations of the actuator.
Materials and Features
Applications
Connect V1 and V2 to the pressure flow, C1 and C2 to the actuator to be controlled. In-line mounting.
TYPE: VBPDE
Use and Operation
Pilot check valves are used to block the cylinder in both directions. Flow is free in one direction and blocked in the reverse direction until pilot pressure is applied.
Materials and Features
Applications
Connect V1 and V2 to the pressure flow and C1 and C2 to the actuator.
TYPE: VBPDE
Use and Operation
Pilot check valves are used to block the actuator in both directions. Flow is free in one direction and blocked in the reverse direction until pilot pressure is applied. Easily assembled on a cylinder.
Materials and Features
Applications
Connect V1 and V2 to the pressure flow and C1 and C2 to the actuator with a banjo.
TYPE: VAU
Use and Operation
Made up by 2 relief valves with crossed tank, this valve is used to block pressure to a certain setting in the 2 ports of an actuator/hydraulic motor. It’s ideal to provide protection against sudden shock pressures and to adjust different pressures in the 2 ports of an hydraulic circuit as well.
Materials and Features
Applications
Connect V1 and V2 to the pressure flow or to the actuator/hydraulic motor. Vice versa for the remaining ports V1 and V2. Mounting by the actuator is highly recommended in order to avoid pressure drops.
TYPE: VAU OMP/OMR
Use and Operation
Made up by 2 relief valves with crossed tank, this valve is used to block pressure to a certain setting in the 2 ports of an actuator/hydraulic motor. It’s ideal to provide protection against sudden shock pressures and to adjust different pressures in the 2 ports of an hydraulic circuit as well. Direct flange is ideal for Danfoss motors type OMP-OMR and provides a maximum safety, very low pressure drops and solid installation.
Materials and Features
Applications
Flange M1 and M2 directly to the motor and connect ports V1 and V2 to pressure flow.
Use and Operation
Diverter flow is used to divert the flow towards 2 different outlets.
Materials and Features
Applications
Connect P to the pressure flow, A and P to the ports of the hydraulic circuit where flow has to be diverted. With lever in position 1 the flow is connected towards port A; with lever in position 2, the flow is connected towards port B. With lever in central position ports P, A and B are all connected (open centre).
TYPE: VUBA
Use and Operation
These valves are used to prevent uncontrolled descent of a load in case of hose failure.
When the flow exceeds the valve setting (reaction flow), this valve is designed to block it.
Materials and Features
Applications
Screw in the valve connecting V to the pressure flow and C to the actuator. The use together with a flow control valve is recommended.
Use and Operation
For mounting between the end of a flexible hose and a fixed component to compensate hose’s rotations and torsion and to prevent its damaging. Not suitable for fast and continuous rotations. Used in every production field where systems have flexible moving hose. In line mounting.
Materials and Features
Applications
Connect ports P to the uses.
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