Parker Hannifin Corporation
Hydraulic Cartridge Systems
Catalog HY15-3502/US
Dual Cross-Over Relief Valve With Check
Series XRDH102
PC65
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 60 LPM (16 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 1.8 kg (4.0 lbs.)
Performance Curve
Flow vs. Inlet Pressure
(Pressure rise through cartridge only)
General Description
Dual Cross-Over Relief Valve with anti-
cavitation checks. This valve provides
both overload and shock protection
for double acting hydraulic actuators
as well as cavitation protection. 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.
Note: A 6.9 Bar (100 PSI) pressure differential must be maintained
between the two relief valve settings.
VA VB
T
CVA CVB
RVBRVA
CYL. A CYL. B
CVB
CVH103 Series
Check Valve
Cartridges (2)
RDH103 Series
Relief Valve
Cartridges (2)
CVA
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
Dimensions
Millimeters (Inches)
38.9
(1.53)
15.9
(.63)
22.9
(.90)
45.2
(1.78)
78.4
(3.09)
Screw
Option
Shown
CVA
Dual Cross-Over Relief Valve With Check
Series XRDH102
Parker Hannifin Corporation
Hydraulic Cartridge Systems
Catalog HY15-3502/US
PC66
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
SealsPressure
Range
Adjustment
Style
Port
Size
Optional
Pressure
Setting
Code Port Size Part No.
8T SAE-8 850437
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)
XRDH102
10 Size
Dual Cross-Over
Relief Valve w/Anti
Cavitation Checks
Pressure
Range
Adjustment
Style
Optional
Pressure
Setting
Cracking
Pressure
Cracking
Pressure
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. XRDH102S50P-T6 means that both A & B reliefs are screw
adjustable and have a range of 34.5 - 345 Bar (500 - 5000 PSI).
Code Cracking Pressure
P 0.3 Bar (5 PSI)
P20 1.4 Bar (20 PSI)
P50 3.5 Bar (50 PSI)
P65 4.5 Bar (65 PSI)
P100 6.9 Bar (100 PSI)
RVA RVB CV1 CV2
Dimensions
Millimeters (Inches)
28.6
(1.13)
127.0
(5.00)
15.7
(.62)
106.2
(4.18)
20.6
(.81)
48.8
(1.92)
RVA
CYL BCYL A
63.5
(2.50)
63.5
(2.50)
18.3
(.72)
15.7
(.62)
38.9
(1.53)
CVB
40.6
(1.60)
VA
20.6
(.81)
78.2
(3.08)
106.2
(4.18)
15.7
(.62)
28.6
(1.13)
VB
RVB
63.5
(2.50)
RVA
Ø 7.1 (.28) Thru
Mounting Hole
(2 Places)
31.7
(1.25)
40.6
(1.60)
127.0
(5.00)
44.5
(1.75)
6.3
(.25)
41.1
(1.62)
22.9
(.90)
CVA
TA NK
CVB
RVB
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 6 plugs.
Part number 6 HP50N-S.
