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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 2900 psi
  • Nominal pressure 580 … 1800 psi
  • For modular design

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 2900 psi
  • Nominal pressure 580 … 2050 psi
  • For modular design

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 2900 psi
  • Nominal pressure 365 … 1800 psi
  • With detent in actuated position

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 3050 psi
  • Nominal pressure 580 … 1800 psi
  • Max. parking brake pressure 1750 psi

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 3050 psi
  • Nominal pressure 580 … 1800 psi
  • Max. parking brake pressure 3050 psi, 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 3600 psi
  • Nominal pressure 580 … 1800 psi
  • Max. parking brake pressure 3050 psi


Values in the US customary unit system are converted and rounded values. In case of doubt, only metric values are valid.
Subject to change, status 2019-07-08 20:47:22