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
TR-PCA PRESSURE COMPENSATING REGULATOR VALVE
DESCRIPTION
12 size, 1 1/16-12 thread, “TWELVE” series, pressure compensating regulator valve.
OPERATION
The TR-PCA-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 across this external orice (see options table for pressure ranges). When used with an
orice as described above, it functions as a priority type regulator, delivering pump ow rst to the external orice,
then bypassing excess to (2). All ports may be fully pressurized. The TR-PCA-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 40 GPM (151 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 .54 lbs (.24 kg)
Operating Fluid Media General Purpose Hydraulic Fluid
Cartridge Torque Requirements 70 ft-lbs (95 Nm)
Cavity TWELVE 3WS
Cavity Form Tool (Finishing) 40500033
Seal Kit 21191306
0
50
100
150
200
250
300
350
0 5 10 15 20 25 30 35 40
Pressure @ Port 3 (PSI)
0
5
10
15
20
0 25 50
Flow (GPM)
75 100 125 150
Pressure @ Port 3 (BAR)
Flow (
LPM)
Port 3 to 2 Port
3 to 2
HYDRAULIC SYMBOL
PERFORMANCE
Actual Test Data (Cartridge Only)
Can be used as a logic element. TR-PCA-0P is commonly
used as a bypass ow regulator (90 and 150 PSI
recommended). TR-PCA-0V is commonly used as the
main stage of a ventable relief valve (50 and 90 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
TR-PCA – – –
OPTIONS BODIES
Buna, Pilot to Close 0P Blank Without Body
Viton, Pilot to Close VP S #10 SAE Ports
Buna, Vent to Open 0V
Viton, Vent to Open VV
Δ P SETTING
@ 1 GPM with Pilot Vented
0020 20 PSI
0050 50 PSI
0090 90 PSI
0150 150 PSI
0230 230 PSI
±10%
Body Weight: 1.56 lbs (.70 kg)
