Catalog HY15-3502/US
Dual Cross-Over Relief Valve
Series XRDH101
PC63
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
Performance Curve
Flow vs. Inlet Pressure
(Pressure rise through cartridge only)
RVA
A
B
A
BRVB
AA
RVA
RVB
BB
RDH103 Series
Relief Valve
Cartridges (2)
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
Specifications
Maximum Flow 75 LPM (20 GPM)
Maximum Inlet 350 Bar (5000 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 (Ambient) (-50°F to +200°F)
-31.7°C to +121.1°C (Fluorocarbon)
(-25°F to +250°F)
Filtration ISO Code 16/13,
SAE Class 4 or better
Fluids Mineral-based or synthetic with
lubricating properties at viscosities
of 45 to 2000 SSU (6 to 420 cSt)
Approx. Weight
Note: A 6.9 Bar (100 PSI) pressure differential must be maintained
between the two relief valve settings.
General Description
Dual Cross-Over Relief Valve. 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 XRDH101
Catalog HY15-3502/US
PC64
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
Parker Hannifin Corporation
Hydraulic Cartridge Systems
Technical Information
Dimensions
Millimeters (Inches)
Ordering Information
THIRD-ANGLE
PROJECTION
Pressure
Range
Adjustment
Style
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)
XRDH101
10 Size
Dual Cross-Over
Relief Valve
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. XRDH101S50-8T means that both A & B reliefs are screw adjustable
and have a range of 138 - 345 Bar (2000 - 5000 PSI).
Port
Size
SealsOptional
Pressure
Setting
Pressure
Range
Adjustment
Style
Optional
Pressure
Setting
RVA
RVB
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 11.3 LPM (3 GPM)
Code Pressure Range
10 6.9 - 69 Bar (100 - 1000 PSI)
Standard Setting:
34.5 Bar (500 PSI) @ 11.3 LPM (3 GPM)
20 34.5 - 138 Bar (500 - 2000 PSI)
Standard Setting:
69 Bar (1000 PSI) @ 11.3 LPM (3 GPM)
30 69 - 207 Bar (1000 - 3000 PSI)
Standard Setting:
103.5 Bar (1500 PSI) @ 11.3 LPM (3 GPM)
50 138 - 345 Bar (2000 - 5000 PSI)
Standard Setting:
172.4 Bar (2500 PSI) @ 11.3 LPM (3 GPM)
41.1
(1.62)
44.5
(1.75)
Ø 7.1 (.28)
Thru Mounting
Hole (2) Places
50.8
(2.00)
6.4
(.25)
78.4 (3.09)
Max.
63.5
(2.50)
6.4 (.25)
Hollow Hex.
RVA
220.5 (8.68)
Max.
RVB
127.0
(5.00)
106.3
(4.19)
20.7
(.82)
31.8
(1.25)
15.9
(.63)
B
A
Code Port Size Part No.
Omit Cartridge Only
8T SAE-8 830318
Steel body only.
Individual body requires 2 SAE 6 plugs.
Part number 6 HP50N-S.
