RD Series Manual Flow Control

Description

The PRINCE valve model RD-1900 is a pressure compensated adjustable flow control valve.

By rotating the handle the flow out the ‘CF’ or controlled flow port can be varied within the range given in the chart above.

Any remaining flow is bypassed to the ‘EF’ or excess flow port. This flow can be used to power another circuit or can be returned to tank. Once the controlled flow is set it will remain nearly constant with variations in pressure on either the controlled or excess flow ports. Please note: If during operation the controlled flow port is blocked the valve will compensate in such a way as to shut off flow to the excess port. These valves can be used a restrictive flow control by plugging the excess flow port. The PRINCE valve models RDRS-1900 has a built in
adjustable pressure relief preset at 1500 PSI @ 10 GPM. For this model, the excess flow port must be connected to tank.

It should be noted that whenever these or any valve is used to bypass or restrict flow heat will be generated. Steps may be required to keep oil temperature from becoming too high.

Pressure Compensated Adjustable Flow Control Valves

Pressure Compensated Adjustable Flow Control Valves with Built-In Relief Valve