What is a prince valve?
The PRINCE valve is a pressure compensated adjustable flow control valve. By rotating the handle, the flow out the “CF”, or controlled flow port, can be varied from approximately 0 to the maximum controlled flow shown in the chart below. Any remaining flow is bypassed to the “EF” or excess flow port.
How do you adjust a prince hydraulic valve?
THE RELIEF SETTING IS ADJUSTED BY LOOSENING THE JAM NUT, AND TURNING THE ADJUSTING SCREW. TURNING THE ADJUSTING SCREW CLOCKWISE INCREASES RELIEF PRESSURE AND COUNTERCLOCKWISE DECREASES RELIEF PRESSURE (A PRESSURE GAUGE MUST BE INSTALLED IN THE INLET LINE OR PORT WHENEVER THE RELIEF PRESSURE IS ADJUSTED).
What does P and T stand for on hydraulic valve?
The supply port, which is called the ‘P’ or pressure port, a tank or ‘T’ port which takes the spent fluid back to the hydraulic tank, and a working port, called the ‘A’ port, that delivers the fluid to the load.
How does a 4-way 3 position valve work?
4-way valves have 4 ports; Pressure (P), Tank (T), Advance (A) and Retract (B). The 3 positions are used to control the advance, retract and hold the tool or cylinder. 4-way valves are designed to operate double-acting hydraulic tools. and cylinders.
How do you adjust a hydraulic block valve?
To adjust the spool valve, loosen the valve-locking nut on the side. Removing the locking nut gives you access to the adjustment screw. Turn the screw clockwise to raise the pressure, and twist it counter-clockwise to lower the pressure.
What does AT and P stand for on valve?
Temperature and Pressure (T&P) Relief Valves.
What is the difference between a 3 way and 4-way valve?
A 3-way valve allows fluid flow to an actuator in one position and exhausts the fluid from it in the other position. Some 3-way valves have a third position that blocks flow at all ports. A double-acting actuator requires a 4-way valve. A 4-way valve pressurizes and exhausts two ports interdependently.
What is a 4-way 2 position valve?
A 4-way 2 position valve is known as a 4/2. These valves are common in double acting cylinder applications where they are always supplying pressure to one side of the cylinder while venting the opposite side to atmosphere.