Page 22 - Parker - Check Valves

Catalog HY15-3502/US Pilot Piston Style P.O. Check Valve
Technical Information Series CSP081 / CSPH081

CV
General Description
Pilot Piston Style Pilot Operated Cylinder
Check Valve. For additional
Valves
Check
SH information see Technical Tips Free
on pages CV1-CV4. Flow
Without
Pilot
Pilot
Shuttle
Valves
Features Valve
LM
• Spherical poppet for low leakage
• “D”-Ring eliminates back-up rings
• Optional sealed pilot piston
Controls
Load/Motor
FC
Ø8.7 (Ø.34)
Mounting Hole Cylinder
(2 Places) Body (Free Flow Outlet)
Controls
Flow
PC

Specifications
Controls
Pressure
Pilot
LE Maximum Flow 56 LPM (15 GPM)
Maximum Inlet 210 Bar (3000 PSI) - CSP081
Pressure 350 Bar (5000 PSI) - CSPH081
Elements
Logic
DC Leakage Across 2 drops/min. (.13 cc/min.)
Check Valve CVH081P
Pilot Piston
150 SSU (32 cSt) (Free Flow Inlet) Check Valve
(Typ. 2 Places)
Directional
Controls
Leakage Across 312 cc/min
MV Pilot Piston 0.3 LPM (.08 GPM)
(No Seals)
Performance Curve
Pilot Ratio 4:1 Pressure Drop vs. Flow (Through cartridge only)
Manual
Valves
PSI Bar Hydraulic Oil 150 SSU @ 100°F (32 cSt)
SV Pilot Piston No Seal - 718237 120 8.3
Part Numbers Nitrile Seal - 718237N
Fluorocarbon Seal - 718237V 100 6.9
Free Flow
P) 30 PSI Spring
Solenoid
Valves
Cartridge Material All parts steel. All operating parts 80 5.5
Pressure Drop ( 60 4.1 Piloted
PV hardened steel.
Body Material Aluminum - CSP081 Open Free Flow
Steel - CSPH081 40 2.8 5 PSI Spring
Proportional
Valves
CE Operating Temp. -45°C to +93.3°C (“D”-Ring)
20 1.4
Range (Ambient) (-50°F to +200°F)
-31.7°C to +121.1°C (Fluorocarbon)
0
(-25°F to +250°F)
LPM 15 30 45 61
0
Coils &
Electronics
GPM 4 8 12 16
BC Filtration ISO code 16/13, Flow (Q)
SAE Class 4 or better
Fluids Mineral-based or synthetic with
Bodies &
Cavities
lubricating properties at viscosities
TD of 45 to 2000 SSU (6 to 420 cSt)
Approx. Weight
Data
Technical
CV21 Parker Hannifin Corporation
Hydraulic Cartridge Systems