Page 34 - Parker - Check Valves

Catalog HY15-3502/US Pilot Piston Style Dual P.O. Check Valve
Technical Information Series CDP081 / CDPH081

CV
General Description
Pilot Piston Style Dual Pilot Operated Cylinder A Cylinder B
Check Valve. For additional
Check
Valves
SH information see Technical Tips
on pages CV1-CV4.

Valves
Shuttle
Features
LM Valve A Valve B
• Spherical poppet for low leakage
• “D”-Ring eliminates back-up rings
• Optional sealed pilot piston
Load/Motor
Controls
FC
Pilot Piston Body
Cylinder Port A Cylinder Port B
Flow
Controls
PC

Specifications
Pressure
Controls
LE Maximum Flow 56 LPM (15 GPM)
Maximum Inlet 210 Bar (3000 PSI) - CDP081
Pressure 350 Bar (5000 PSI) - CDPH081
Logic
Elements
DC Leakage Across 2 drops/min. (.13 cc/min.)
Valve Port A Valve Port B
Check CVH081P
150 SSU (32 cSt) Ø9.9 (Ø.39) Check Valve
Mounting Hole (3 Places) (Typ. 2 Places)
Controls
Directional
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)
Valves
Manual
SV Pilot Piston No Seal - 718238 PSI Bar Hydraulic Oil 150 SSU @ 100°F (32 cSt)
Part Numbers Nitrile Seal - 718238N 120 8.3
Fluorocarbon Seal - 718238V
100 6.9
Solenoid
Valves
Cartridge Material All parts steel. All operating parts P) Free Flow
PV hardened steel. 80 5.5 30 PSI Spring
Body Material Aluminum - CDP081 60 4.1
Steel - CDPH081 Pressure Drop ( Piloted Free Flow
Open
5 PSI Spring
Proportional
Valves
CE Operating Temp. -45°C to +93.3°C (“D”-Ring) 40 2.8
Range (Ambient) (-50°F to +200°F)
-31.7°C to +121.1°C (Fluorocarbon) 20 1.4
(-25°F to +250°F)
0
Electronics
Coils &
LPM 15 30 45 61
BC Filtration ISO code 16/13, 0
GPM 4 8 12 16
SAE Class 4 or better Flow (Q)
Fluids Mineral-based or synthetic with
Cavities
Bodies &
lubricating properties at viscosities
TD of 45 to 2000 SSU (6 to 420 cSt)
Approx. Weight
Technical
Data
CV33 Parker Hannifin Corporation
Hydraulic Cartridge Systems