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
SL-PCA PRESSURE COMPENSATING REGULATOR VALVE
DESCRIPTION
16 size, 1 5/16-12 thread, “SIXTEEN” series, pressure compensating regulator valve.
OPERATION
The SL-PCA-0P with an external orice between ports (3) and (1) maintains a constant ow rate across the
external orice, 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 the external orice, thereby regulating the hydraulic ow rate across the 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 SL-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 Initially area of Pilot is 1.2 times
the area at Port (3), then 1:1
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 .70 lbs (.32 kg)
Operating Fluid Media General Purpose Hydraulic Fluid
Cartridge Torque Requirements 90 ft-lbs (122 Nm)
Cavity SIXTEEN 3WS
Cavity Form Tool (Finishing) 40500021
Seal Kit 21191406
0
50
100
150
200
250
300
0
350
5 10 15 20 25 30 35 40
Flow (GPM)
0
5
10
15
20
0 25 50 75 100
Pressure @ Port 3 (PSI)
125 150
Flow (LPM)
Flow (GPM)
Flow (LPM)
Pressure @ Port 3 (bar)
Port 3 to 2 (Undercut Cavity) Port 3 to 2 (Standard Cavity)
0
50
100
150
200
250
300
350
0 5
400
10 15 20 25 30 35 40
0
5
10
15
20
25
0 25 50 75 100
Pressure @ Port 3 (PSI)
125 150
Pressure @ Port 3 (bar)
Port 3 to 2 (Undercut Cavity) Port 3 to 2 (Standard Cavity)
0
50
100
150
200
250
300
0
350
5 10 15 20 25 30 35 40
Flow (GPM)
0
5
10
15
20
0 25 50 75 100
Pressure @ Port 3 (PSI)
125 150
Flow (LPM)
Flow (GPM)
Flow (LPM)
Pressure @ Port 3 (bar)
Port 3 to 2 (Undercut Cavity) Port 3 to 2 (Standard Cavity)
0
50
100
150
200
250
300
350
0 5
400
10 15 20 25 30 35 40
0
5
10
15
20
25
0 25 50 75 100
Pressure @ Port 3 (PSI)
125 150
Pressure @ Port 3 (bar)
Port 3 to 2 (Undercut Cavity) Port 3 to 2 (Standard Cavity)
Can be used as a logic element. SL-PCA-0P is commonly
used as a bypass ow regulator (100 PSI recommended).
SL-PCA-0V is commonly used as the main stage of a
ventable relief valve (50 and 100 PSI recommended).
HYDRAULIC SYMBOL
PERFORMANCE
Actual Test Data (Cartridge Only)
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
SL-PCA – – –
OPTIONS BODIES
Buna, Pilot to Close 0P Blank Without Body
Viton, Pilot to Close VP S #12 SAE Ports
Buna, Vent to Open 0V
Viton, Vent to Open VV
Buna, Pilot to Close with Seals 0B
Viton, Pilot to Close with Seals VB
Buna, Vent to Open with Seals 0C Δ P SETTING
Viton, Vent to Open with Seals VC @ 1 GPM with Pilot Vented
0020 20 PSI
0050 50 PSI
0100 100 PSI
0150 150 PSI
Body Weight: 1.89 lbs (.86 kg)
