Parker Hannifin Corporation
Hydraulic Cartridge Systems
Catalog HY15-3502/US
Dual Cross-Over Relief Valve
Series XRDH103
PC67
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
Specifications
Technical Information
Maximum Flow 75 LPM (20 GPM)
Maximum Inlet 380 Bar (5500 PSI)
Pressure
Maximum 350 Bar (5000 PSI)
Pressure Setting
Reseat Pressure 85% of crack pressure
Leakage at 5 drops/min. (.33 cc/min.)
150 SSU (32 cSt) @ 75% of crack pressure
Cartridge Material All parts steel. All operating
parts hardened steel.
Body Material Steel
Operating Temp. -45°C to +93.3°C (“D”-Ring)
Range/Seals (-50°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 2.0 kg (4.5 lbs.)
Performance Curve
Flow vs. Inlet Pressure
(Pressure rise through cartridge only)
Note: A 6.9 Bar (100 PSI) pressure differential must be maintained
between the two relief valve settings.
RVA
AB
A Motor
Control Valve
B
RVB
RDH103 Series
Relief Cartridge Valve (2 Ea.)
Body
RVB
RVA
Flow (Q)
45.4
12
15.1
4
30.3
8
LPM
GPM
0
60.6
16
75.7
20
Hydraulic Oil 150 SSU @ 100°F (32 cSt)
0
1000
2000
345
414
207
276
69
138
5000
6000
PSI Bar
3000
4000
Pressure
General Description
Dual Cross-Over Relief Valve with
Motor Mount. This valve provides
overload and shock protection for
small gerotor motors with a manifold
mounting pattern, such as the Parker TB
and TE series. Close coupling the valve to the motor
provides ideal protection and eliminates plumbing.
For additional information see Technical Tips on
pages PC1-PC6.
Features
•
Fast acting differential area reliefs for high flow capacity
•
Spherical poppets for low leakage
•
Internal mechanical stop limits poppet travel eliminating
spring solidification
•
“D”-Ring eliminates backup rings
•
All external parts have yellow zinc dichromate. This
coating is ideal for salt spray applications.
Dual Cross-Over Relief Valve
Series XRDH103
Parker Hannifin Corporation
Hydraulic Cartridge Systems
Catalog HY15-3502/US
PC68
Check
Valves
Shuttle
Valves
Load/Motor
Controls
Flow
Controls
Pressure
Controls
Logic
Elements
Directional
Controls
Manual
Valves
Proportional
Valves
Coils &
Electronics
Technical
Data
SH
CV
LM
FC
PC
LE
DC
MV
SV
PV
CE
BC
TD
Bodies &
Cavities
Solenoid
Valves
THIRD-ANGLE
PROJECTION
Ordering Information
Technical Information
Dimensions
Millimeters (Inches)
Code Port Size Part No.
8T SAE-8 830338
Code Seals
Omit “D”-Ring
N Nitrile
V Fluorocarbon
Code Adjustment Style / Kit No.
F Fixed style, preset at factory.
K Knob Adjust (717784-10)
(Requires 2)
S Screw Adjust
T Tamper Resistant Cap (717943)
(Requires 2)
Note: A 6.9 Bar (100 PSI) pressure differential must be maintained
between the two relief valve settings. If both reliefs are adjustable and
have the same pressure range; it is not necessary to repeat the
adjustment and setting.
i.e. XRDH10350-6T means that both A & B reliefs are screw adjustable
and have a range of 34.5 - 345 Bar (500 - 5000 PSI).
Pressure
Range
Adjustment
Style
XRDH103
10 Size Dual Cross-Over
Relief Valve With Manifold
Mounting Pattern
Port
Size
SealsOptional
Pressure
Setting
Pressure
Range
Adjustment
Style
Optional
Pressure
Setting
RVA
RVB
78.4
(3.09)
69.9
(2.75)
23.9
(.94)
55.6
(2.19)
79.2
(3.12)
8.7 (.343) Dia. Thru
12.7 (.50) Dia. C' Bore
x 9.4 (.37) DP.
Mtg. Holes (4) Places
RVARVB
AB
47.5
(1.87)
50.8
(2.00)
33.3
(1.31)
28.6
(1.13)
7.8
(.31)
9.0
(.35)
63.5
(2.50)
45.8
(1.80)
14.3
(.56)
Code Pressure Range
10 6.9 - 69 Bar (100 - 1000 PSI)
Standard Setting:
34.5 Bar (500 PSI) @ .95 LPM (.25 GPM)
20 34.5 - 138 Bar (500 - 2000 PSI)
Standard Setting:
69 Bar (1000 PSI) @ .95 LPM (.25 GPM)
30 34.5 - 207 Bar (500 - 3000 PSI)
Standard Setting:
103.5 Bar (1500 PSI) @ .95 LPM (.25 GPM)
50 34.5 - 345 Bar (500 - 5000 PSI)
Standard Setting:
172.4 Bar (2500 PSI) @ .95 LPM (.25 GPM)
Optional Pressure Setting
Pressure ÷ 10
i.e. 235 = 2350 PSI
(Omit if standard setting is used)
Setting Range:
100 to 5000 PSI
All settings at .95 LPM (.25 GPM)
Individual body requires 4 SAE 5 plugs.
Part number 5 HP50N-S.
