Catalog HY15-3502/US
Direct Acting Relief Valve
Series A04B2
PC21
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
General Description
Direct Acting Poppet-Type Relief Valve. For additional
information see Technical Tips on pages PC1-PC6.
Features
•
Fast response with good stability
•
Virtually leak-free
•
Hardened working parts for maximum durability
•
Adjustable, preset and tamperproof versions available
•
Preset version is tamperproof and compact
•
All external parts zinc plated
Rated Flow 100 LPM (26 GPM)
Maximum Inlet H - 5-210 Bar (72-3000 PSI)
Pressure P - 5-420 Bar (72-6000 PSI)
Maximum 420 Bar (6000 PSI)
Pressure Setting
Maximum Tank 420 Bar (6000 PSI)
Pressure
Leakage at 5 drops/min.
150 SSU (32 cSt) @ 100 Bar (1450 PSI)
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 0.28 kg (0.62 lbs.)
Cavity C10-2
(See BC Section for more details)
Form Tool Rougher None
Finisher NFT10-2F
Performance Curves
(Pressure rise through cartridge only)
Flow (Q)
75
19.8
0
25
6.6
50
13.2
LPM
GPM
100
26.4
Hydraulic Oil 150 SSU @ 100°F (32 cSt)
0
725
150
200
100
50
Pressure Drop
2175
2900
PSI Bar
1450
Flow vs. Inlet Pressure
A04B2H
BASIC VALVE PRESSURE DROP
Flow (Q)
75
19.8
0
25
6.6
50
13.2
LPM
GPM
100
26.4
Hydraulic Oil 150 SSU @ 100°F (32 cSt)
0
1450
300
400
200
100
Pressure Drop
4350
5800
PSI Bar
2900
Flow vs. Inlet Pressure
A04B2P
BASIC VALVE PRESSURE DROP
(2)
(1)
(2)
(1)
Direct Acting Relief Valve
Series A04B2
Catalog HY15-3502/US
PC22
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
Adjustment
Style
Pressure
Adjustment
Range
Seals
Optional
Pressure
Setting
Code Seals / Kit No.
N Nitrile, Buna-N (Std.) /
(SK30503N-1)
V Fluorocarbon /
(SK30503V-1)
Code Pressure Adjustment Range
H 5 - 210 Bar (72 - 3000 PSI)
P 5 - 420 Bar (72 - 6000 PSI)
Code Adjustment Style / Kit No.
Z Screw Adjust (Std.)
W Knob Adjust
T Tamper Resistant Cap (TC1130)
Y Non Adjustable Preset
A04B2
10 Size
Direct Acting
Relief Valve
Optional Pressure Setting
Specify setting if required (Bar)
Y Setting must be specified
A04B2H Standard Setting:
100 Bar (1450 PSI)
@ 15 LPM (4.0 GPM)
A04B2P Standard Setting:
200 Bar (2900 PSI)
@ 15 LPM (4.0 GPM)
'Z'
21.8
(0.86)
max
59
(2.32)
31.8
(1.25)
'Y'
61.0
(2.40)
max
5 AF Hex socket
17 AF Hex.
12 Nm
(9 lb. ft.)
Torque
26 AF Hex.
50 Nm
(37 lb. ft.)
Torque
7/8" - 14 UNF
T (2)
P (1)
Body
Material
Port
Size
Code Body Material
Omit Steel
A Aluminum
* Add “A” for aluminum, omit for steel.
† Steel body only.
Code Port Size Body Part No.
Omit Cartridge Only
4P 1/4″ NPTF (B10-2-*4P)
6P 3/8″ NPTF (B10-2-*6P)
8P 1/2″ NPTF (B10-2-*8P)
6T SAE-6 (B10-2-*6T)
8T SAE-8 (B10-2-*8T)
T8T SAE-8 (B10-2-T8T)†
6B 3/8″ BSPG (B10-2-6B)†
