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PRINCE MANUFACTURING CORPORATION • P.O. BOX 7000 • NORTH SIOUX CITY, SOUTH DAKOTA 57049-7000
URL: www.princehyd.com • E-MAIL: prince@princehyd.com
O.E.M. CUSTOMER SERVICE: (605) 235-1220 • FAX (712) 233-2181 DISTRIBUTOR CUSTOMER SERVICE: PHONE (605) 235-1220 • FAX (712) 233-2181
V58
VALVES
CATV 58-09-04-01
PRESSURE COMPENSATED
ADJUSTABLE FLOW CONTROL VALVES
The PRINCE valve models RD-100 and RD-1900 are pressure compensated
adjustable flow control valves. 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. 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 also be used as a restrictive flow control by plugging
the excess flow port.
The PRINCE valve models RDRS-100 and RDRS-1900 have a built in
adjustable pressure relief. For these models 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.
STANDARD MODELS AVAILABLE
MODEL NUMBER PORT SIZES CONTROLLED
FLOW RANgE
RD-137-8 RD-1937-8 3/8 NPTF 0-8 GPM
RD-150-8 RD-1950-8 1/2 NPTF 0-8 GPM
RD-150-16 RD-1950-16 1/2 NPTF 0-16 GPM
RD-175-16 RD-1975-16 3/4 NPTF 0-16 GPM
RD-175-30 RD-1975-30 3/4 NPTF 0-30 GPM
RD-108-8 RD-1908-8 #8 SAE 0-8 GPM
RD-112-30 RD-1912-30 #12 SAE 0-30 GPM
RDRS-150-16 RDRS-1950-16 1/2 NPTF 0-16 GPM
RDRS-175-30 RDRS-1975-30 3/4 NPTF 0-30 GPM
VALVE SPECIFICATIONS: FIELD REPAIR kITS:
Capacity: 30 gpm max inlet flow Handle hardware 660301002
Pressure: 3000 psi max Seal Kit 660501001
Weight: RD-100 8 lbs.
RD-1900 9 lbs.
SYMBOL
For Other Relief Settings Please Specify:
Relief Pressure in
Hundreds Example:
20=2000 PSI
These models have built in relief set at
1500 psi @ 10 gPM.
Special combinations of port size and controlled flow range are available in O E M quantities.
Please consult your sales representative.
MODEL RD-100
TOP PORT FLOW CONTROL
MODEL RD-1900
SIDE PORT FLOW CONTROL
IN
CF EF CF EF
IN RDRS-100 &
RDRS-1900
RD-100 &
RD-1900
RDRS-1950-16-20
RDRS-150-16-20
Relief Pressure in
Hundreds Example:
20=2000 PSI
SEE PAGE 23 OF THE STANDARD PRODUCT PRICE LIST FOR PRICING
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