MECHANICAL DIRECTIONAL 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-CVA Direct Acting Check Valve, Poppet
DESCRIPTION
“High Pressure” 10 size, 7/8-14 thread, “Delta” series, direct acting check valve.
OPERATION
The HE-CVA allows free flow passage from (2) to (1), and blocks flow from (1) to (2).
The cartridge has a fully guided check poppet, which is spring-biased closed, until sufficient pressure is
applied at (2) to open to (1).
.
FEATURES
x Hardened parts for long life and low leakage.
x Optional bias springs for backpressure application flexibility.
x Fully guided poppet assembly.
x Industry common cavity.
HYDRAULIC SYMBOL
Drop-In pilot pistons can be used (except the 135 and 150 psi version)
to create P.O. Check Valve Function, see the Hydraulic Integrated
Circuits section (page 480) for details.
PERFORMANCE
Actual Test Data (Cartridge Only)
VALVE SPECIFICATIONS
Nominal Flow 15 GPM (57 LPM)
Rated Operating Pressure 5000 PSI (345 bar)
Typical Internal Leakage
(150 SSU)
0-5 drops/min
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 1.23 lbs. (.56 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
0
50
100
150
200
250
0 5 10 15 20
Flow (GPM)
Pressure Drop (PSI)
0
5
10
15
0255075
Flow (LPM)
Pressure Drop (BAR)
Port 2 to 1
Page 234
MECHANICAL DIRECTIONAL 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-CVA - - -
OPTIONS BODIES
Buna Standard 00 Consult Factory WARNING
Viton Standard V0 DO NOT USE ALUMINUM BODY
HIGH PRESSURE (5000 PSI) PRODUCT.
CRACK PRESSURE
0005 5 PSI
0010 10 PSI
0020 20 PSI
0035 35 PSI
0070 70 PSI
0090 90 PSI
0135 135 PSI
0150 150 PSI
± 10%
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