Page 71 - Parker - Pressure Control Valves

Catalog HY15-3502/US Differential Area Unloading Relief Valve
Technical Information Series RU101

CV
General Description
Differential Area Unloading Relief Valve. This valve is
best suited for low flow accumulator unloading circuits
Check
Valves
SH or can be used as remote pilot valves. They provide a
fixed percentage between load and unload pressures.
For additional information see Technical Tips on pages
PC1-PC6.
Valves
Shuttle
LM
Features
• Low hysteresis
Load/Motor
Controls
• Cartridge design
FC Tank
• All external parts zinc plated (3)
(2) (3)
Pressure
(2)
Controls
Flow
PC Specifications
Pilot
(1) (1)
Rated Flow 3.75 LPM (1 GPM)
Controls
Pressure
Maximum .94 LPM (.25 GPM)
LE Pilot Flow Performance Curve
Inlet Flow vs. Pressure Drop
Maximum Inlet 245 Bar (3500 PSI)
Pressure Without pilot assist (Through cartridge only)
Elements
Logic
PSI Bar Hydraulic Oil 150 SSU @ 100°F (32 cSt)
DC Maximum 210 Bar (3000 PSI) 100 6.9
Pressure Setting
Maximum Tank 210 Bar (3000 PSI) P) 75 5.2
Directional
Controls
Pressure
MV
Leakage at Port 2 to 3 50 3.5
150 SSU (32 cSt) 10 drops/min. (0.66 cc/min.) Pressure Drop (
Port 1 to 2
Manual
Valves
60 drops/min. (3 cc/min.)
SV 25 1.7
Cartridge Material All parts steel. All operating
parts hardened steel.
0
LPM 0.9 1.9 2.8 3.8
Solenoid
Valves
Operating Temp. -40°C to +93.3°C (Nitrile) GPM 0 .25 .5 .75 1
PV Range/Seals (-40°F to +200°F) Flow (Q)
-31.7°C to +121.1°C (Fluorocarbon)
(-25°F to +250°F)
Valves
Proportional
Fluid Mineral-based or synthetic with
CE 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
Electronics
Coils &
BC
Approx. Weight .23 kg (.50 lbs.)
Cavity C10-3
Bodies &
Cavities
(See BC Section for more details)
TD
Form Tool Rougher NFT10-3R
Finisher NFT10-3F
Technical
Data
PC69 Parker Hannifin Corporation
Hydraulic Cartridge Systems