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303.02.0058 Multi-circuit Protection Valve, Brake System

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303.02.0058 Compatible Multi-circuit Protection Valve

303.02.0058

Summary

This multi-circuit protection valve is engineered for heavy commercial vehicle brake systems. It features specific port configurations including M22x1.5 and M12x1.5, with opening pressures of 7.5 BAR and 8.6 BAR, ensuring precise pneumatic control for Faun and WABCO systems. Equivalent to OE Faun 99707007310 and WABCO 9347050040.

Product identifiers
EAN Code8683457006850
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Compatible OEM Codes

  • WABCO
    • 934 705 004 0
  • FAUN
    • 99707007310

Description

What does a multi-circuit protection valve do?

This multi-circuit protection valve plays a critical role in the pneumatic brake system by isolating different circuits to maintain braking performance in case of a leak. Built with high-strength components, it ensures that pressure drops in one circuit do not compromise the entire braking capability of the vehicle.

Vehicle and system compatibility

This component is specifically designed for Faun vehicles and is compatible with WABCO systems. It features multiple connection points, including M22x1.5 ports and M12x1.5 ports, to accommodate complex pneumatic layouts in heavy commercial vehicles.

Installation and technical specifications

Technicians should verify the opening and closing pressures during installation to ensure system integrity. This valve operates with specific pressure thresholds, such as 7.5 BAR opening pressure for ports 23/24 and 6.6 BAR closing pressure for ports 21/22, to maintain optimal pneumatic regulation.

Maintenance and troubleshooting

Regular inspection of the port connections and pressure settings is recommended to prevent sudden pressure loss in the braking circuit.

OE cross-reference

303.02.0058 (Multi-circuit Protection Valve) is the equivalent of the Faun and WABCO OE numbers. This part directly replaces Faun OE number 99707007310. It also replaces WABCO OE number 9347050040.

Technical Specifications

Technical Specifications
Port 1M22x1,5
Port 21M22x1,5
Port 22M22x1,5
Port 23M22x1,5
Port 24M22x1,5
Port 25M22x1,5
Port 26M22x1,5
Port 27M12x1,5
Port 28M12x1,5
Opening Pressure 23/247,5 BAR
Closing Pressure 21/226,6 BAR
Closing Pressure 23/244,5 BAR
Opening Pressure 21/228,6 BAR

Other OEMs

FAUN

  • 99707007310

WABCO

  • 9347050040
  • 934 705 004 0

Related Products

Repair Kits

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
FAUN
WABCO

FAQ

What is the function of this protection valve?
It isolates various pneumatic circuits within the brake system, preventing total air loss if a single circuit develops a leak.
Which vehicle brands is this part compatible with?
This part is designed for Faun vehicles and is compatible with WABCO systems.
What are the port specifications for this valve?
The valve features M22x1.5 ports (Ports 1, 21, 22, 23, 24, 25, 26) and M12x1.5 ports (Ports 27, 28).
How can I identify if the protection valve needs replacement?
Symptoms include unusual air pressure drops or failure to maintain specific opening pressures like 7.5 BAR or 8.6 BAR.
What are the OE reference numbers of this part?
303.02.0058 directly replaces Faun OE number 99707007310. It also replaces WABCO OE number 9347050040.