Catalog HY15-3502/US
Pilot Operated Relief Valve
Series RAH201
PC45
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
Parker Hannifin Corporation
Hydraulic Cartridge Systems
Technical Information
Specifications
Rated Flow 379 LPM (100 GPM)
Maximum Inlet 380 Bar (5500 PSI)
Pressure
Maximum 350 Bar (5000 PSI)
Pressure Setting
Maximum Tank 350 Bar (5000 PSI)
Pressure
Reseat Pressure 80% of crack pressure
Leakage at 5 cc per 100 PSI (6.8 Bar) setting
150 SSU (32 cSt)
Cartridge Material All parts steel. All operating
parts hardened steel.
Operating Temp. -40°C to +93.3°C (Nitrile)
Range/Seals (-40°F to +200°F)
-31.7°C to +121.1°C (Fluorocarbon)
(-25°F to +250°F)
Fluid Mineral-based or synthetic with
Compatibility/ lubricating properties at viscosities
Viscosity of 45 to 2000 SSU (6 to 420 cSt)
Filtration ISO Code 16/13,
SAE Class 4 or better
Approx. Weight 0.9 kg (2.0 lbs.)
Cavity C20-2
(See BC Section for more details)
Form Tool Rougher None
Finisher NFT20-2F
Performance Curve
Flow vs. Inlet Pressure
(Pressure rise through cartridge only)
General Description
Pilot Operated Spool-Type Relief Valve. For additional
information see Technical Tips on pages PC1-PC6.
Features
•
Low override curve
•
Ball-type pilot for added stability
•
High accuracy - pilot operated design
•
Hardened, precision ground parts for durability
•
Compact size for reduced space requirements
•
All external parts have yellow zinc dichromate. This
coating is ideal for salt spray applications.
Out
(2)
In
(1)
Tank
(2)
Pressure
(1)
Flow (Q)
227
60
76
20
151
40
LPM
GPM
0
303
80
379
100
Hydraulic Oil 150 SSU @ 100°F (32 cSt)
0
1000
2000
345
414
207
276
69
138
Pressure
5000
6000
PSI Bar
3000
4000