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
DG-CDP Double Pilot Operated Check Valve
DESCRIPTION
10 size, 7/8 -14 thread, “Delta” series, double pilot operated check valve.
OPERATION
The DG-CDP allows flow to pass from (3) to (4) and (2) to (1). The valve blocks flow from (4) to (3) and from
(1) to (2). Blocked flow is released when pilot pressure is applied to the port opposite of (3) and /or (2)
respectively.
The valve has a 3:1 pilot ratio, so at least 1/3 of the load pressure at port (4) or (1) is required at the pilot
line ports (ports (4) or (1) respectively) to open the flow passage to allow flow from port (4) or (1)
respectively.
The check spring biased at 20 PSI (1.4 bar) to assure holding in the static or no-load conditions.
FEATURES
• Hardened parts for long life.
• Industry common cavity.
VALVE SPECIFICATIONS
Nominal Flow 8 GPM (30 LPM)
Rated Operating Pressure
3000 PSI (207 bar)
HYDRAULIC SYMBOL
Typical Internal Leakage
(150 SSU)
0 - 5 drop / min
Viscosity Range
36 to 3000 SSU (3 to 647 cSt)
Filtration
ISO 18/16/13
Media Operating
Temperature Range
-40° to 250° F (-40° to 120° C)
Weight
.20 lbs. (.09 kg)
Operating Fluid Media
General Purpose Hydraulic Fluid
Cartridge Torque
Requirements
30 ft-lbs (40.6 Nm)
Great for “in Cylinder “ use
Application
Cavity
DELTA 4W
Cavity Form Tool (Finishing)
40500002
PERFORMANCE
Seal Kit 21191216
Actual Test Data (Cartridge Only)
-
0
50
100
150
200
250
0246810
Flow (gpm)
Pressure Drop (psi)
0
5
10
15
0102030
Flow (LPM)
Pressure Drop (bar)
Pressure dro
p
, 2 to 1 Pressure dro
p
, 3 to 4
PRESSURE DROP - PILOTED
0
50
100
150
200
0246810
Flow (gpm)
Pressure Drop (psi)
0
2
4
6
8
10
12
0 5 10 15 20 25 30 35
Flow (LPM)
Pressure Drop (bar)
Pressure drop 4 to 3 Pressure Drop 1 to 2
Page 268
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
DG-CDP - - -
OPTIONS BODIES
Urethane Standard
U0
Blank Without Body
N
1/4” NPTF PORT
S
#6 SAE Ports
SPRING BIAS
0020
20 PSI
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