MECHANICAL PRESSURE CONTROLS
4484 Boeing Drive Rockford, IL 61109 • USA • Phone +1 (815) 397-6628 • Fax +1 (815) 397-2526
mail: delta@delta-power.com • www.delta-power.com
WARNING: the specications/application data shown in our catalogs and data sheets are intended only as a general guide for the product described (herein). Any specic application should not be undertaken
without independent study, evaluation, and testing for suitability.
W 51 / 12-2022
DF-PCR PRESSURE COMPENSATING REGULATOR VALVE
DESCRIPTION
10 size, 7/8-14 thread, “Delta” series, pressure compensating regulator valve.
OPERATION
The DF-PCR-0P with an orice between ports (3) and (1) maintains a constant ow rate from (3) regardless of
load pressure changes in the system upstream of (3), or in the bypass leg at (2) as long as pressure at (2) is less
than (1). The valve’s spool maintains a constant differential pressure across an external orice, thereby regulating
the hydraulic ow rate from (3) to (2) (see options table for pressure ranges). When used with an orice as
described above, as a priority type regulator, delivering pump ow rst to (3), then bypassing excess to (2). All
ports may be fully pressurized. The DF-PCR-0V with a dump valve and a pilot relief valve at (1) acts as main
stage of a ventable relief valve.
FEATURES
• Hardened parts for long life.
• Industry common cavity.
VALVE SPECIFICATIONS
Nominal Flow 10 GPM (38 LPM)
Rated Operating Pressure 3500 PSI (241 bar)
Seat Ratio Area of Pilot is equal to the area
at Port (3)
Viscosity Range 36 to 3000 SSU (3 to 647 cSt)
Filtration ISO 18/16/13
Media Operating Temp. Range -40° to 250°F (-40° to 120°C)
Weight .19 lbs (.09 kg)
Operating Fluid Media General Purpose Hydraulic Fluid
Cartridge Torque Requirements 30 ft-lbs (40.6 Nm)
Cavity DELTA 3W
Cavity Form Tool (Finishing) 40500001
Seal Kit 21191206
0
50
100
150
200
250
86420 10
Flow (GPM)
0
5
10
15
0 5
Pressure @ Port 3 (PSI)
10 15 25
20 30 35
Flow (LP
M)
Pressure @ Port 3 (bar)
Port 3 to 2 Port 3 to 2
HYDRAULIC SYMBOL
PERFORMANCE
Actual Test Data (Cartridge Only)
Can be used as a logic element.DF-PCR-0P is commonly
used as a bypass ow regulator (80 PSI recommended).
DF-PCR-0V is commonly used as the main stage of a
ventable relief valve (40 and 80 PSI recommended).
MECHANICAL PRESSURE CONTROLS
4484 Boeing Drive Rockford, IL 61109 • USA • Phone +1 (815) 397-6628 • Fax +1 (815) 397-2526
mail: delta@delta-power.com • www.delta-power.com
WARNING: the specications/application data shown in our catalogs and data sheets are intended only as a general guide for the product described (herein). Any specic application should not be undertaken
without independent study, evaluation, and testing for suitability.
W 51 / 12-2022
DIMENSIONS
ORDERING INFORMATION
DF-PCR – – –
OPTIONS BODIES
Buna, Pilot to Close 0P Blank Without Body
Viton, Pilot to Close VP N 1/4” NPTF Ports
Buna, Vent to Open 0V S #6 SAE Ports
Viton, Vent to Open VV
PRESSURE SETTING
0040 40 PSI
0080 80 PSI
0150 150 PSI
0200 200 PSI
Body Weight: .76 lbs (.35 kg)
