Catalog HY15-3502/US
Pilot Operated, Ventable Relief Valve
Series A04H3
PC53
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
General Description
Pilot Operated, Spool-Type, Ventable Relief Valve.
For additional information see Technical Tips on
pages PC1-PC6.
Features
•
High flow capacity
•
Full tank line back pressure capability
•
Excellent flow pressure characteristics for consistent
pressure setting
•
Ideal for pump relief and remote control or unloading via
vent (port 3)
•
Integral 250 micron pilot flow filter
•
Hardened working parts for maximum durability
•
Adjustable and tamperproof versions available
•
All external parts zinc plated
Rated Flow 190 LPM (50 GPM)
Maximum Inlet H - 10-210 Bar (145-3000 PSI)
Pressure P - 10-420 Bar (145-6000 PSI)
Maximum 420 Bar (6000 PSI)
Pressure Setting
Maximum Tank 420 Bar (6000 PSI)
Pressure
Leakage at 25 ml/min.
150 SSU (32 cSt) @ 100 Bar (1450 PSI)
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 0.25 kg (0.55 lbs.)
Cavity C10-3S
(See BC Section for more details)
Form Tool Rougher None
Finisher
Performance Curves
(Pressure rise through cartridge only)
(2)
(1)
(3)
(2)
(3)
(1)
Flow (Q)
150
39.6
0
50
13.2
100
26.4
LPM
GPM
200
52.8
Hydraulic Oil 150 SSU @ 100°F (32 cSt)
0
1450
300
400
200
100
Pressure Drop
4350
5800
PSI Bar
2900
Flow vs. Inlet Pressure 1 to 2
Flow (Q)
150
39.6
0
50
13.2
100
26.4
LPM
GPM
200
52.8
Hydraulic Oil 150 SSU @ 100°F (32 cSt)
0
73
15
20
10
5
Pressure Drop
218
290
PSI Bar
145
Vented Open Pressure Drop 1 to 2