Page 26 - Parker - Check Valves

Catalog HY15-3502/US Pilot Piston Style P.O. Check Valve
Technical Information Series CSP161 / CSPH161

CV
General Description
Pilot Piston Style Pilot Operated Check Valve. Cylinder
For additional information see Technical Tips
Valves
Check
SH on pages CV1-CV4. Free
Flow
Without
Pilot
Pilot
Features
Shuttle
Valves
LM • Hardened precision ground parts for durability Valve
• Optional sealed pilot piston
• Steel or aluminum body construction
Controls
Load/Motor
FC
Cylinder

Controls
Flow
PC
Pilot
Specifications
Pressure
Controls
CVH161
LE
Check Valve
Maximum Flow 187 LPM (50 GPM) Pilot Piston Valve
Maximum Inlet 210 Bar (3000 PSI) - CSP161
Logic
Pressure 350 Bar (5000 PSI) - CSPH161
Elements
DC
Performance Curve
Leakage at 5 drops/min (.33 cc/min)
150 SSU (32 cSt) @ 350 Bar (5000 psi) Pressure Drop vs. Flow (Through cartridge only)
Controls
Directional
Leakage Across 312 cc/min PSI Bar Hydraulic Oil 150 SSU @ 100°F (32 cSt)
MV Pilot Piston 0.3 LPM (.08 GPM) 100 6.9
(No Seals)
80 5.5
Pilot Ratio 3:1 P) Piloted
Manual
Valves
Open
SV Pilot Piston No Seal - 717910 60 4.1
Part Numbers Nitrile Seal - 717910N
Fluorocarbon - 717910V Pressure Drop ( 40 2.8
Solenoid
Valves
Cartridge Material All parts steel. All operating parts Free
Flow
PV hardened steel. 20 1.4
Body Material Aluminum - CSP161 0
Steel - CSPH161 LPM 38 76 114 151 189
0
Proportional
Valves
GPM 10 20 30 40 50
CE Operating Temp. -40°C to +93.3°C (Nitrile) Flow (Q)
Range (Ambient) (-40°F to +200°F)
-31.7°C to +121.1°C (Fluorocarbon)
(-25°F to +250°F)
Coils &
Electronics
BC Filtration ISO code 16/13,
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
Technical
Data
CV25 Parker Hannifin Corporation
Hydraulic Cartridge Systems