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
DE-RVD DIFFERENTIAL AREA RELIEF VALVE
DESCRIPTION
10 size, 7/8-14 thread, “Delta” series, differential area relief valve.
OPERATION
The DE-RVD blocks ow from (1) to (2) until sufcient pressure is present at (1) to force the poppet to open and
allow metered ow from (1) to (2). The cartridge offers smooth transition in response to load changes in common
hydraulic circuits.
FEATURES
• Hardened parts for long life.
• Industry common cavity.
VALVE SPECIFICATIONS
Nominal Flow 15 GPM (57 LPM)
Rated Operating Pressure 4000 PSI (276 bar)
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 .57 lbs (.26 kg)
Operating Fluid Media General Purpose Hydraulic Fluid
Cartridge Torque Requirements 30 ft-lbs (40.6 Nm)
Cavity DELTA 2W
Cavity Form Tool (Finishing) 40500000
Seal Kit 21191200
0
500
1000
1500
0
2000
2 4 6 8 0 1 2 1 4 1 1 6
0
50
Pressure Drop (PSI)
Flow (GPM)
0
100
5
Pressure Drop (bar)
Flow (LPM)
1 0 1 5 2 0 2 5 3 0 3 5 4 0 4 5 5 0 5 5 6 0
P o rt 1 t o 2 P o rt 1 to 2
0
500
1000
1500
2000
2500
3000
3500
4000
4500
0 2 4 6 8 1 21 0 1 4 1 6
0
5 0
Pressure Drop (PSI)
100
150
Flow (GPM)
200
250
300
0 5 1 0 1 5 2 0 2 5 3 53 0 4 0 4 5 5 0 5 5 6 0
Pressure Drop (bar)
Flow (LPM)
P o rt 1 to 2 P o rt 1 to 2
0
500
1000
1500
0
2000
2 4 6 8 0 1 2 1 4 1 1 6
0
50
Pressure Drop (PSI)
Flow (GPM)
0
100
5
Pressure Drop (bar)
Flow (LPM)
1 0 1 5 2 0 2 5 3 0 3 5 4 0 4 5 5 0 5 5 6 0
P o rt 1 t o 2 P o rt 1 to 2
0
500
1000
1500
2000
2500
3000
3500
4000
4500
0 2 4 6 8 1 21 0 1 4 1 6
0
5 0
Pressure Drop (PSI)
100
150
Flow (GPM)
200
250
300
0 5 1 0 1 5 2 0 2 5 3 53 0 4 0 4 5 5 0 5 5 6 0
Pressure Drop (bar)
Flow (LPM)
P o rt 1 to 2 P o rt 1 to 2
Low PSI/turn adjustment.
Good pressure vs. ow characteristic.
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
DE-RVD – – –
OPTIONS BODIES
Buna Standard 00 Blank Without Body
Viton Standard V0 N 3/8” NPTF Ports
Buna, Screen A0 S #8 SAE Ports
Viton, Screen W0
Buna, Knob 0K
Viton, Knob VK
Buna, Knob, Screen AK PRESSURE RANGE/SETTING
Viton, Knob, Screen WK 0200 50 - 200 PSI
1500 200 - 1500 PSI
Note: use screen only if ow direction 3000 1500 - 3000 PSI
is from (1) to (2).
4000 2500 - 4000 PSI
Body Weight: .47 lbs (.21 kg)
