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Power brake valves


Heavy construction, agriculture and forestry machinery and municipal vehicles, vehicles for material handling and special vehicles require braking systems with high operational safety at low operating forces.

These vehicles require servo-assisted or power brake systems to achieve the braking effect required by law. Power brake valves come in modular and compact design, and can be operated with fixed displacement pumps (open center) or variable displacement pumps (load-sensing hydraulic systems).


Single-circuit power brake valve

LT 05

  • Direct operated pressure reducing valve in 3-way design with stepless mechanical actuation
  • For construction equipment, material handling vehicles, forestry and agricultural machines, municipal vehicles, special vehicles
  • Max. inlet pressure 200 bar
  • Max. service brake pressure 160 bar
  • For modular system architecture

Dual-circuit power brake valve

LT 07

  • Direct operated pressure reducing valve in 3-way design with stepless mechanical actuation
  • For mobile machines
  • Max. inlet pressure 200 bar
  • Max. service brake pressure 140 bar
  • For modular system architecture

Accumulator charging valve

LT 06

  • To keep a predefined pressure level in an accumulator circuit
  • For mobile machines
  • Max. inlet pressure 200 bar
  • Accumulator charging flow 6 to 17 l/min
  • For modular system architecture

Single-circuit power brake valve

LT 12

  • Compact module with brake valve and accumulator charging valve, optional with parking brake
  • For construction equipment, material handling vehicles, forestry and agricultural machines, municipal vehicles, special vehicles
  • Max. inlet pressure 210 bar
  • Max. service brake pressure 125 bar
  • Max. parking brake pressure 120 bar

Dual-circuit power brake valve

LT 13

  • Compact module with brake valve and accumulator charging valve, optional with parking brake
  • For construction equipment, material handling vehicles, forestry and agricultural machines, municipal vehicles, special vehicles
  • Max. inlet pressure 210 bar
  • Max. service brake pressure 125 bar
  • Max. parking brake pressure 120 bar, optionally adjustable

Dual-circuit power brake valve

LT 17

  • Compact module with brake valve and accumulator charging valve, optional with parking brake
  • For construction equipment, material handling vehicles, forestry and agricultural machines, municipal vehicles, special vehicles
  • Max. inlet pressure 210 bar
  • Max. service brake pressure 125 bar
  • Max. parking brake pressure 200 bar

Relay valve

LT 09

  • Direct operated pressure reducing valve in 3-way version with hydraulic actuation
  • For mobile machines with very long brake pipes or very large brake cylinder volumes
  • Max. control pressure 140 bar
  • Max. service brake pressure 200 bar
  • Installation preferably directly at the axis to be decelerated

Inch power brake valve

LT 31

  • Combination of single-circuit braking valve and inch valve
  • For construction equipment, material handling vehicles, forestry and agricultural machines, municipal vehicles, special vehicles
  • Max. inlet pressure 210 bar
  • Max. service brake pressure 100 bar
  • Max. inch pressure 30 bar

Hand brake valve

LT 08

  • Direct operated pressure reducing valve in 3-way version with hand lever actuation
  • For use in spring loaded braking systems
  • Max. inlet pressure 200 bar
  • Parking brake pressure 25 to 125 bar
  • With detent in actuated position


Subject to change without notice, last update 2016-10-30 14:29:20