PRESSURE CONTROLS
Delta Power Company
4484 Boeing Drive - Rockford, IL 61109
WARNING: The specifications/application data shown in our catalogs and data sheets are intended only as a general guide for the product described
(herein). Any specific application should not be undertaken without independent study, evaluation, and testing for suitability.
Phone: (815) 397-6628 Fax: (815) 397-2526 E-mail: delta@delta-power.com
HE-RVD Differential Area Relief Valve
DESCRIPTION
10 size, 7/8-14 thread, “Delta” series, differential area relief valve
OPERATION
The HE-RVD blocks flow from (1) to (2) until sufficient pressure is present at (1) to force the poppet to open
and allow metered flow from (1) to (2).
The cartridge offers smooth transition in response to load changes in common hydraulic circuits.
FEATURES
x Hardened parts for long life.
x Industry common cavity.
HYDRAULIC SYMBOL
Good pressure vs. flow characteristic.
Recommended Return Line Pressure as shown on Performance
Data Graph.
Undercut Cavity Recommended for Max. flows.
(Consult Factory for Details)
PERFORMANCE
Actual Test Data (Cartridge Only)
VALVE SPECIFICATIONS
0 10 20 30 40 50 60 70 80 90 100 110 120 130
Ͳ40
10
60
110
160
210
260
310
0
500
1000
1500
2000
2500
3000
3500
4000
4500
0 5 10 15 20 25 30 35
Flow(LPM)
Pressure(BAR)
Pressure(PSI)
Flow(GPM)
Port1to2 Tank Port1to2
Nominal Flow 40 GPM (151 LPM)
Rated Operating Pressure 5000 PSI (310 bar)
Viscosity Range 36 to 3000 SSU (3 to 647 cSt)
Filtration ISO 18/16/13
Media Operating
Temperature Range
-40q to 250q F (-40q to 120q C)
Weight .57 lbs. (.26 kg)
Operating Fluid Media General Purpose Hydraulic Fluid
Cartridge Torque
Requirements
50 ft-lbs (67.8 Nm)
Cavity DELTA 2W
Cavity Form Tool (Finishing) 40500000
Seal Kit 21191200
Page 352
PRESSURE CONTROLS
Delta Power Company
4484 Boeing Drive - Rockford, IL 61109
WARNING: The specifications/application data shown in our catalogs and data sheets are intended only as a general guide for the product described
(herein). Any specific application should not be undertaken without independent study, evaluation, and testing for suitability.
Phone: (815) 397-6628 Fax: (815) 397-2526 E-mail: delta@delta-power.com
DIMENSIONS
ORDERING INFORMATION
HE-RVD - - -
OPTIONS BODIES Note: Aluminum, NOT durability rated for
Buna Standard 00 Blank Without Body 4000 PSI. Consult factory options.
Viton Standard V0 N 3/8 NPTF Ports
Buna, Screen A0 S #8 SAE Ports
Viton, Screen W0
Buna, Knob 0K
Viton, Knob VK PRESSURE RANGE/SETTING
Buna, Knob, Screen AK 5000 1000-5000 PSI
Viton, Knob, Screen WK
Note: Use screen only if flow direction
is from (1) to (2).
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