Our Services
- Thrust Washer
- Clamp Nut Axle
- Cap Bolt ISO 4762-M10X 40-10.9 DBL9
- Hub Cap
- Steering Knuckle Kit Single Cut
- Steering Knuckle Kit Double Cut
- Profile Seal Packing Front
- Nutring ABS Ring
- Radial Shaft Sealing Ring ABS
- Tapered Roller Bearing / 125X70X41 (33214 Front Inner)
- Tapered Roller Bearing / 90X50X32 (33210 Front Outer)
- Wheel Mounting Bolt / HDT / M22 X 2.5 X 78
- Wheel Nut M22 X 2.5
- Front Wheel Hub ABS
- Front Wheel Hub NonABS
- Drag Link Assembly
- Tie Rod Assembly
- Tie Rod Assembly
- Radial Shaft Sealing Ring NonABS
- Rear Axle Shaft Short With Diff. Lock
- Wheel Mounting Bolt / HDT / M22 X 2.5 X 98
- Tapered Roller Bearing / 130X80X37 (33116 Rear Outer)
- Tapered Roller Bearing / 150X100X31 (33020 Rear Inner)
- Profile Seal Packing Rear
- Radial Shaft Sealing Ring BS4/6
- Radial Shaft Sealing Ring BS3
- Axle Locknut - M80X1.5
- Axle Locknut - M80X1.5 OS
- Lock Plate for Grooved Nut
- Distanzplatte Washer
- Impulsring Spacer
- Radial Seal Input Thru Shaft
- Input Thru Shaft Nut M39X1.5 (Yoke)
- Brake Drum / 180MM 7"
- Brake Drum / 220MM/FG300 9"
- Brake Drum / Oil Hub
- Brake Shoe 14 Holes
- Brake Shoe 12 Holes
- Brake Lining / Set-(STD) Cons - 410X220 12 Hole
- Brake Lining / Set-(STD) Construction 14 Hole
- Retaining Spring / Abutment End Small
- Tension Spring / Spring Cam End Big
- Brake Cam Oil Seal
- Brake Cam Bush Brass
- Brake Adjustment / Automatic-160MM-75 Offset / LH
- Brake Adjustment / Automatic-160MM-75 Offset / RH
- Brake Adjustment / Automatic-160MM
- Brake Cylinder LH / Type 24/24/200MM/ RT1
- Brake Cylinder RH / Type 24/24/200MM/ RT1
- Brake Cylinder LH / Type 20/24/72MM/IN/ RT2
- Brake Cylinder RH / Type 20/24/72MM/IN/ RT2
- Four-Circuit Protection Valve / EG FU
- Quick Exhaust Valve – QRV (WABCO)
- Air Drier – KNORR
- AIR DRIER / WABCO
- Relay Valve - Delivery Plug-WABCO
- Solenoid Valve VOSS Type
- Pressure Sensor / KB
- Drain Valve / Water Drain Plug
- Air Pressure Limiter / Valve Unit Euro4
- Dual-Circuit Brake Valve
- Compressed Air Line Brake / Rubber Hose / FRT
- Cylinder Head / Air Compressor Cyl Assy HD
- Cylinder Head
- Coolant Line
- Coolant Line
- Brake Shoe Liner Set
Dual-Circuit Brake Valve
It provides proportional air pressure to the front and rear circuits based on pedal input, maintaining stability and preventing total brake failure in case one circuit loses pressure. Built with high-precision internal components and corrosion-resistant housing, the valve delivers reliable performance under varying loads, temperatures, and driving conditions. Its dual-channel design ensures smooth modulation, quick response, and consistent brake feel.
By ensuring accurate and safe air distribution, the valve enhances braking efficiency, reduces stopping distance, and improves overall vehicle safety.
Key Features
- Dual-circuit control for independent front and rear brake regulation
- Ensures safe braking even if one circuit fails
- Provides proportional air pressure based on pedal input
- High-strength, corrosion-resistant construction
- Stable operation under high pressure, temperature, and vibration
Product Specifications
| GROUP | MODEL | REF. PART NUMBER | SPECIFICATIONS |
|---|---|---|---|
| 11.077 | 3128, 2523, 2528 | A4004310305 | Dual-Circuit Brake Valve – Air Brake System Control Module |
Process Steps
- Depressurize the vehicle’s air-brake system completely.
- Disconnect all air lines and mounting hardware from the old valve.
- Remove the existing dual-circuit brake valve from its bracket.
- Install the new valve and secure it using OEM-specified torque.
- Reconnect air lines according to port markings for both circuits.
- Recharge system, check for leaks, and test brake response for proper modulation.
FAQ
What does a dual-circuit brake valve do?
It controls and distributes air pressure separately to two brake circuits, ensuring safety and balanced braking.
Why are two circuits necessary?
If one circuit fails, the second circuit continues operating, preventing total brake failure.
