Catalog HY15-3502/US
Parker Hannifin Corporation
Hydraulic Cartridge Systems
Check
Valves
Shuttle
Valves
Load/Motor
Controls
Flow
Controls
Pressure
Controls
Logic
Elements
Directional
Controls
Manual
Valves
Solenoid
Valves
Proportional
Valves
Coils &
Electronics
Bodies &
Cavities
Technical
Data
SH
CV
LM
FC
PC
LE
DC
MV
SV
PV
CE
BC
TD
CV37
Pilot Piston Style Dual P.O. Check Valve
Series CDP161 / CDPH161Technical Information
Performance Curve
Pressure Drop vs. Flow (Through cartridge only)
General Description
Pilot Piston Style Dual Pilot Operated Check Valve.
For additional information see Technical Tips
on pages CV1-CV4.
Features
•
Hardened precision ground parts for durability
•
Optional sealed pilot piston
Specifications
Maximum Flow 187 LPM (50 GPM)
Maximum Inlet 210 Bar (3000 PSI) - CDP161
Pressure 350 Bar (5000 PSI) - CDPH161
Leakage at 5 drops/min (.33 cc/min)
150 SSU (32 cSt) @ 350 Bar (5000 psi)
Leakage Across 312 cc/min
Pilot Piston 0.3 LPM (.08 GPM)
(No Seals)
Pilot Ratio 3:1
Pilot Piston No Seal - 717918
Part Numbers Nitrile Seal - 717918N
Fluorocarbon - 717918V
Cartridge Material All parts steel. All operating parts
hardened steel.
Body Material Aluminum - CDP161
Steel - CDPH161
Operating Temp. -40°C to +93.3°C (Nitrile)
Range (Ambient) (-40°F to +200°F)
-31.7°C to +121.1°C (Fluorocarbon)
(-25°F to +250°F)
Filtration ISO code 16/13,
SAE Class 4 or better
Fluids Mineral-based or synthetic with
lubricating properties at viscosities
of 45 to 2000 SSU (6 to 420 cSt)
Approx. Weight
Cylinder Port A
Cylinder Port B
CVH161
(Two Places)
Valve Port B
Free Flow Pressure
Valve Port A - Return
Flow Piloted From B
Body
Piston Position
Hydraulic Oil 150 SSU @ 100°F (32 cSt)
Flow (Q)
76
20
38
10
LPM
GPM
0
114
30
151
40
189
50
Piloted
Open
Free
Flow
0
20
100 6.9
4.1
5.5
2.8
1.4
60
80
PSI Bar
40
Pressure Drop ( P)
Cylinder A
Cylinder B
Valve A
Valve B
Catalog HY15-3502/US
Parker Hannifin Corporation
Hydraulic Cartridge Systems
Check
Valves
Shuttle
Valves
Load/Motor
Controls
Flow
Controls
Pressure
Controls
Logic
Elements
Directional
Controls
Manual
Valves
Proportional
Valves
Coils &
Electronics
Technical
Data
SH
CV
LM
FC
PC
LE
DC
MV
SV
PV
CE
BC
TD
Bodies &
Cavities
Solenoid
Valves
Pilot Piston Style Dual P.O. Check Valve
Series CDP161 / CDPH161
CV38
Technical Information
Dimensions
Millimeters (Inches)
Ordering Information
Code Seals / Kit No.
Omit Nitrile / (SK16-2N)
V Fluorocarbon /
(SK16-2V)
Code Cracking Pressure
*Omit 0.3 Bar (5 PSI)
20 1.4 Bar (20 PSI)
65 4.5 Bar (65 PSI)
175 12.1 Bar (175 PSI)
16 Size
Dual Pilot Piston
P.O. Check Valve
Cracking
Pressure
Seals
Port
Size
Piston
Type
Code Piston Type
P Pilot Piston without seal
A Pilot Piston with seal
Note: Requires 1.4 Bar
(20 PSI) crack minimum.
*Not available with “A” option.
CDP
178
(7.00)
203.2
(8.00)
25.4
(1.00)
VB
VA
50.8
(2.00)
152
(6.00)
85.7
(3.38)
7.9
(.31)
10.3
(.41)
Ty p.
25.4
(1.00)
12.7
(.50)
Ty p.
CB
CA
101.6
(4.00)
Model
Description
Code Model Description
161 3000 PSI Series
H161 5000 PSI Series
Code Port Size Material
Omit Cartridge Only
A16T SAE-16 Aluminum
(CDP161 Only)
16T SAE-16 Steel
(CDPH161 Only)
THIRD-ANGLE
PROJECTION
