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
CV23
Pilot Piston Style P.O. Check Valve
Series CSP103 / CSPH103Technical Information
Performance Curve
Pressure Drop vs. Flow (Through cartridge only)
General Description
Pilot Piston Style Pilot Operated
Check Valve. For additional
information see Technical Tips
on pages CV1-CV4.
Features
Spherical poppet for low leakage
“D”-Ring eliminates back-up rings
Optional sealed pilot piston
Steel or aluminum body construction
Specifications
Maximum Flow 56 LPM (15 GPM)
Maximum Inlet 210 Bar (3000 PSI) - CSP103
Pressure 350 Bar (5000 PSI) - CSPH103
Leakage Across 2 drops/min. (.13 cc/min.)
Check
150 SSU (32 cSt)
Leakage Across 312 cc/min
Pilot Piston 0.3 LPM (.08 GPM)
(No Seals)
Pilot Ratio 4:1
Pilot Piston No Seal - 717909
Part Numbers Nitrile Seal - 717909N
Fluorocarbon Seal - 717909V
Cartridge Material All parts steel. All operating parts
hardened steel.
Body Material Aluminum - CSP103
Steel - CSPH103
Operating Temp. -45°C to +93.3°C (“D”-Ring)
Range (Ambient) (-50°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
Hydraulic Oil 150 SSU @ 100°F (32 cSt)
Flow (Q)
38
10
45
12
7.6
2
15
4
23
6
30
8
LPM
GPM
0
53
14
61
16
Free Flow
Piloted Open
0
20
100 6.9
5.5
2.8
4.1
1.4
80
PSI Bar
40
60
Pressure Drop ( P)
Free
Flow
Without
Pilot
Cylinder
Valve
Pilot
Pilot Piston
Body
CVH103P
Check Valve
Ø10.3 (Ø.41)
Mounting Hole
(2 Places)
Valve
(Free Flow Inlet)
Cylinder
(Free Flow Outlet)
Pilot
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 P.O. Check Valve
Series CSP103 / CSPH103
CV24
Technical Information
Dimensions
Millimeters (Inches)
Ordering Information
Code Seals / Kit No.
Omit “D”-Ring / (SK10-2)
N Nitrile / (SK10-2N)
V Fluorocarbon /
(SK10-2V)
Code Cracking Pressure
*Omit 0.3 Bar (5 PSI)
20 1.4 Bar (20 PSI)
50 3.5 Bar (50 PSI)
65 4.5 Bar (65 PSI)
80 5.5 Bar (80 PSI)
100 6.9 Bar (100 PSI)
10 Size
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.
CSP
Model
Description
Code Model Description
103 3000 PSI Series
H103 5000 PSI Series
Code Port Size Material
Omit Cartridge Only
A8T SAE-8 Aluminum
(CSP103 Only)
8T SAE-8 Steel
(CSPH103 Only)
31.8
(1.25)
CYL
15.9
(.62)
Ø10.3 (Ø.41)
Mounting Hole
(2 Places)
18.3
(.72)
90.4
(3.56)
0.8 Max
(.03)
37.3
(1.47)
64.3
(2.53)
63.5
(2.50)
PILOT
39.7
(1.56)
11.9
(.47)
VALVE
CYLINDER
31.8
(1.25)
THIRD-ANGLE
PROJECTION