Versatile application areas

Construction machinery

Various excavator types and a wide range of road construction applications

Construction machinery
Conveying equipment

Mobile cranes and aerial work platforms

Conveying equipment
Forestry machinery

Various timber processing applications

Forestry machinery
Municipal equipment

Refuse collection vehicles, carriers and winter services

Municipal equipment
Agricultural machinery

Self-propelled and towed machines (EPOM program)

Agricultural machinery

Technical Documentation

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Overview of LVS12 directional valve sections

Description
Standard equipment
  • Port thread for actuators A and B = G¾"
  • Integral pressure compensator
Freely configurable functions
  • Flow rate
  • Spool type in mid-position
  • Plug base
  • Emergency control
  • With spool type 3A, 4A and 4D: spool stroke limiter feature (adjustable ex works)
2 independent 3/2 proportional directional valves
The spool types 6A and 6D are designed to supply 2 motorized drives. By dividing the control spool 6A, 2 motorized drives can be implemented in parallel, and independently of one another, in one valve body.
For further information on ordering, see chapter Order information.
Actuator type Center position: actuator locked to tank Center position: actuator connected to tank
For single-acting actuators 3J
For double-acting actuators 4A 4D
For two single-acting actuators in one section (split control spool) 6A 6D
Description
Standard equipment
  • Port thread for actuators A and B = G¾"
  • Integral pressure compensator
  • Pressure/make-up valve (choice of pressure settings)
Freely configurable functions
  • Flow rate
  • Spool type in mid-position
  • Plug base
  • Emergency control
  • With spool type 3A, 4A and 4D: spool stroke limiter feature (adjustable ex works)
2 independent 3/2 proportional directional valves
The spool types 6A and 6D are designed to supply 2 motorized drives. By dividing the control spool 6A, 2 motorized drives can be implemented in parallel, and independently of one another, in one valve body.
Pressure, make-up function
The pressure control valves protect actuators from unacceptably large pressure peaks when the actuator is operated or when external forces act on the actuator. The make-up function supplies oil to the actuator when the tank pressure is higher than the actuator pressure.
For further information on ordering, see chapter Order information.
Actuator type Center position: actuator locked to tank Center position: actuator connected to tank
For single-acting actuators 3J
For double-acting actuators 4A 4D
For two single-acting actuators in one section (split control spool) 6A 6D
Description
Standard equipment
  • Integral pressure compensator
  • Port thread for actuators A and B = G¾"
  • Additional manual operator
  • Spool stroke limiter feature
Freely configurable functions
  • Flow rate
  • Spool type in mid-position
  • Plug base
  • Emergency control
  • With spool type 3A, 4A and 4D: spool stroke limiter feature (adjustable ex works)
2 independent 3/2 proportional directional valves
The spool types 6A and 6D are designed to supply 2 motorized drives. By dividing the control spool 6A, 2 motorized drives can be implemented in parallel, and independently of one another, in one valve body.
For further information on ordering, see chapter Order information.
Actuator type Center position: actuator locked to tank Center position: actuator connected to tank
For double-acting actuators 4A 4D
Description
Standard equipment
  • Port thread for actuators A and B = G¾"
  • Integral pressure compensator
  • Pressure/make-up valve (choice of pressure settings)
  • Additional manual operator
  • Spool stroke limiter feature
Freely configurable functions
  • Flow rate
  • Spool type in mid-position
  • Plug base
  • Emergency control
  • With spool type 3A, 4A and 4D: spool stroke limiter feature (adjustable ex works)
2 independent 3/2 proportional directional valves
The spool types 6A and 6D are designed to supply 2 motorized drives. By dividing the control spool 6A, 2 motorized drives can be implemented in parallel, and independently of one another, in one valve body.
Pressure, make-up function
The pressure control valves protect actuators from unacceptably large pressure peaks when the actuator is operated or when external forces act on the actuator. The make-up function supplies oil to the actuator when the tank pressure is higher than the actuator pressure.
For further information on ordering, see chapter Order information.
Actuator type Center position: actuator locked to tank Center position: actuator connected to tank
For double-acting actuators 4A 4D

Technical data

Hydraulic characteristics Description, value, unit
Maximum operating pressure Pump side: 300 bar1)
Actuator side: 320 bar1)
Maximum flow rate 180 l/min
Spool increments according to the actuator flow rates at 12 bar Δp 16(C), 25(D), 40(F), 50(P), 63(G), 80(H), 100(K), 125(L), 150(M), 180(O) l/min
Nominal voltage 12 or 24 V DC
Voltage tolerance ± 10%
Power consumption max. 18 W (at 1.5 A + 12 V or 0.75 A + 24 V)
Energizing current At 12 V: 0.6 - 1.50 A
At 24 V: 0.3 - 0.75 A
Actuated time 100 %
Protection class AMP: IP65
Deutsch DT04: IP67 (DIN EN 60529)
1) Higher pressures and flow rates on request
Pressure-reducing valve characteristics Description, value, unit
Maximum current At 12 V: 1.6 mA
At 24 V: 0.8 mA
Coil resistance at 12 V: 5.3 Ω
at 24 V: 21.2 Ω
PWM frequency (dither) 100 Hz

Performance graphs

Control characteristic LVS12 direction valve sections
  1. Spool type C, 4.25 gpm (16 l/min)
  2. Spool type D, 6.5 gpm (25 l/min)
  3. Spool type F, 11 gpm (40 l/min)
  4. Spool type P, 13 gpm (50 l/min)
  5. Spool type G, 16.5 gmp (63 l/min)
  6. Spool type H, 21 gpm (80 l/min)
  7. Spool type K, 26 gpm (100 l/min)
  8. Spool type L, 33 gpm (125 l/min)
  9. Spool type M, 40 gpm (150 l/min)
  10. Spool type O, 48 gpm (180 l/min)