Page 65 - Parker - Pressure Control Valves

Catalog HY15-3502/US Dual Cross-Over Relief Valve
Technical Information Series XRDH101

CV
General Description
Dual Cross-Over Relief Valve. For
additional information see Technical
Valves
Check
SH Tips on pages PC1-PC6.

Features
Shuttle
Valves
LM • Fast acting differential area reliefs for high flow capacity
• Spherical poppets for low leakage
• Internal mechanical stop limits poppet travel eliminating
spring solidification
Controls
Load/Motor
FC • “D”-Ring eliminates backup rings A A
• All external parts have yellow zinc dichromate. This
coating is ideal for salt spray applications.
B RVA RVB B
Flow
Controls
PC

Controls
Pressure
LE Specifications RDH103 Series
A A Relief Valve
Cartridges (2)
Maximum Flow 75 LPM (20 GPM) RVA
RVB
Elements
Logic
Maximum Inlet 350 Bar (5000 PSI)
DC
Pressure
B B
Maximum 350 Bar (5000 PSI)
Pressure Setting
Directional
Controls
MV
Reseat Pressure 85% of crack pressure
Leakage at 5 drops/min. (.33 cc/min.) Performance Curve
150 SSU (32 cSt) @ 75% of crack pressure
Flow vs. Inlet Pressure
Manual
Valves
SV (Pressure rise through cartridge only)
Cartridge Material All parts steel. All operating
parts hardened steel. PSI Bar Hydraulic Oil 150 SSU @ 100°F (32 cSt)
6000 414
Body Material Steel
Valves
Solenoid
5000 345
PV
Operating Temp. -45°C to +93.3°C (“D”-Ring)
Range (Ambient) (-50°F to +200°F) 4000 276
-31.7°C to +121.1°C (Fluorocarbon)
(-25°F to +250°F) Pressure 3000 207
Proportional
Valves
CE
Filtration ISO Code 16/13, 2000 138
SAE Class 4 or better
1000 69
Fluids Mineral-based or synthetic with
Electronics
Coils &
lubricating properties at viscosities
BC 0
of 45 to 2000 SSU (6 to 420 cSt) LPM 15.1 30.3 45.4 60.6 75.7
0
GPM 4 8 12 16 20
Flow (Q)
Approx. Weight
Cavities
Bodies &
TD
Note: A 6.9 Bar (100 PSI) pressure differential must be maintained
between the two relief valve settings.
Technical
Data
PC63 Parker Hannifin Corporation
Hydraulic Cartridge Systems