Catalog HY15-3502/US
Differential Area Relief Valve
Series RD163
PC33
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
Specifications
Rated Flow 151 LPM (40 GPM)
Maximum Inlet 240 Bar (3500 PSI)
Pressure
Maximum 210 Bar (3000 PSI)
Pressure Setting
Maximum Tank 210 Bar (3000 PSI)
Pressure
Reseat Pressure 80% of crack pressure
Leakage at 10 drops/min. (.66 cc/min.)
150 SSU (32 cSt) @75% of crack pressure
Cartridge Material All parts steel. All operating
parts hardened steel.
Operating Temp. -40°C to +93.3°C (Nitrile)
Range/Seals (-40°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 .23 kg (0.5 lbs.)
Cavity C16-2
(See BC Section for more details)
Form Tool Rougher None
Finisher NFT16-2F
Performance Curve
Flow vs. Inlet Pressure
(Pressure rise through cartridge only)
General Description
Differential Area Relief Valve. For additional informa-
tion see Technical Tips on pages PC1-PC6.
Features
•
Hardened, precision ground parts for durability
•
Compact size for reduced space requirements
•
Low leakage design
•
Fast response
•
All external parts zinc plated
(1)
(2)
Pressure
(2)
Tank
(1)
Flow (Q)
114
30
38
10
76
20
LPM
GPM
0
152
40
Hydraulic Oil 150 SSU @ 100°F (32 cSt)
Pressure
0
1000
2000
276
207
69
138
4000
PSI Bar
3000
Differential Area Relief Valve
Series RD163
Catalog HY15-3502/US
PC34
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
SealsPressure
Range
Adjustment
Style
Body
Material
Port
Size
Optional
Pressure
Setting
Code Seals / Kit No.
Omit Nitrile / (SK16-2)
V Fluorocarbon / (SK16-2V)
Code Pressure Range
10 13.8 - 69 Bar (200 - 1000 PSI)
Standard Setting:
34.5 Bar (500 PSI)
@ 11.3 LPM (3 GPM)
20 27.6 - 138 Bar (400 - 2000 PSI)
Standard Setting:
69 Bar (1000 PSI)
@ 11.3 LPM (3 GPM)
30 41.4 - 207 Bar (600 - 3000 PSI)
Standard Setting:
103.5 Bar (1500 PSI)
@ 11.3 LPM (3 GPM)
Code Body Material
Omit Steel
A Aluminum
Code Adjustment Style / Kit No.
K Knob Adjust (840208K)
S Screw Adjust
T Tamper Resistant Cap (717783)
Optional Pressure Setting
Pressure ÷ 10
i.e. 235 = 2350 PSI
(Omit if standard setting is used)
Setting Range:
100 to 3000 PSI
All settings at 11.3 LPM (3 GPM)
RD163
16 Size
Differential Area
Relief Valve
* Add “A” for aluminum, omit for steel.
† Steel body only.
Code Port Size Body Part No.
Omit Cartridge Only
12P 3/4″ NPTF (B16-2-*12P)
16P 1″ NPTF (B16-2-*16P)
8T SAE-8 (B16-2-*8T)
12T SAE-12 (B16-2-*12T)
16T SAE-16 (B16-2-*16T)
12B 3/4″ BSPG (B16-2-12B)†
16B 1″ BSPG (B16-2-*16B)
1-1/2" Hex.
54 Nm
(40 lb. ft.)
Torque
Ø 38.1 (1.50)
Knob
1-5/16-12 UNF-2A
Thread
Ø 28.5
(1.12)
45.8
(1.80)
78.0
(3.07)
97.0
(3.82)
Max.
Screw/Knob Version
In
(2)
Out
(1)
100.0
(3.94)
Tamper Resistant Version
