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 specications/application data shown in our catalogs and data sheets are intended only as a general guide for the product described (herein). Any specic application should not be undertaken
without independent study, evaluation, and testing for suitability.
W 51 / 12-2022
MA-RVA DIRECT ACTING RELIEF VALVE
HYDRAULIC SYMBOL
PERFORMANCE VALVE SPECIFICATIONS
DESCRIPTION
7 size, 5/8-18 thread, “Mini” series, direct acting relief valve.
OPERATION
The MA-RVA blocks ow from (2) to (1) until sufcient pressure is present at (2) to force the poppet to open and
allow metered ow from (2) to (1). The cartridge offers smooth transition in response to load changes in common
hydraulic circuits.
FEATURES
Hardened parts for long life.
Industry common cavity.
Nominal Flow 5 GPM (19 LPM)
Rated Operating Pressure 3000 PSI (207 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 .39 lbs (.17 kg)
Operating Fluid Media General Purpose Hydraulic Fluid
Cartridge Torque Requirements 15 ft-lbs (20.3 Nm)
Cavity MINI 2W
Cavity Form Tool (Finishing) 40500003
Seal Kit 21191000
Actual Test Data (Cartridge Only)
0
500
1000
1500
2000
2500
3000
3500
4000
420 6 8
Pressure Drop (PSI)
0
50
100
150
200
250
0
Flow (GPM)
5 10 15 20 25 30
Flow (LPM)
Pressure Drop (bar)
Port 2 to 1 Port 2 to 1 Port 2 to 1
1
2
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 specications/application data shown in our catalogs and data sheets are intended only as a general guide for the product described (herein). Any specic application should not be undertaken
without independent study, evaluation, and testing for suitability.
W 51 / 12-2022
DIMENSIONS
ORDERING INFORMATION
MA-RVA – – –
OPTIONS BODIES
Buna Standard 00 Blank Without Body
Viton Standard V0 N 1/4” NPTF Ports
Buna, Knob 0K S #6 SAE Ports
Viton, Knob VK
PRESSURE RANGE
0500 100 - 500 PSI
1500 500 - 1500 PSI
3000 1500 - 3000 PSI
Body Weight: .29 lbs (.13 kg)