Catalog HY15-3501/US
LM13
Load Control Valve
Series E2A040, E2B040, E2H040
Parker Hannifin Corporation
Hydraulic Cartridge Systems
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
General Description
Threaded Cartridge Style Counterbalance Valve.
Pilot assisted, designed for motion control
applications. For additional information see
Technical Tips on pages LM1-LM4.
Features
•
Poppet construction for minimal leakage
•
Incorporates direct acting relief valve for overload
protection
•
Includes reverse check valve within body, saving space
and minimizing installation cost
•
Excellent control and very good stability
•
Three pilot ratios available, 1.75:1 and 3:1 for cylinders
and 8:1 for motor control
•
Hardened working parts for maximum durability
•
Adjustable, preset and tamper resistant versions available
•
Preset version is tamper resistant and compact
•
All external parts zinc plated
Specifications
Technical Information
Performance Curves
Rated Flow 60 LPM (15.9 GPM)
Pressure 50 - 350 Bar (725 - 5000 PSI)
Sensitivity: 99 Bar (1435 PSI)
Pressure/Turn
Pilot Ratio E2A040 - 8 : 1
E2B040 - 3 : 1
E2H040 - 1.75 : 1
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 0.27 kg (0.60 lbs.)
Cavity 68-1
(See BC Section for more details)
(1)
(2)
(3)
Flow (Q)
40
10.6
30
7.9
10
2.6
20
5.3
LPM
GPM
0
50
13.2
60
15.9
Hydraulic Oil 150 SSU @ 100°F (32 cSt)
0
1450
400
200
300
100
5800
PSI Bar
2900
4350
Pressure Drop Bar, PSI
Relief & Pilot Performance 1 to 2
RELIEF
E2A040
E2B040
E2H040
PILOT PRESSURE WITH
100 BAR LOAD
Pressure Drop vs Flow
Hydraulic Oil 150 SSU @ 100°F (32 cSt)
0
73
20
10
15
5
290
PSI Bar
145
218
PressurDrop Bar, PSI
Flow (Q)
40
10.6
30
7.9
10
2.6
20
5.3
LPM
GPM
0
50
13.2
60
15.9
PILOTED OPEN 1 to 2
& FREE FLOW 2 to 1