303.02.0004 Multi-circuit Protection Valve
2200 Visualized

303.02.0004 Multi-circuit Protection Valve — WABCO

303.02.0004

Summary

This Multi-circuit Protection Valve features multiple high-strength ports including Port 1 (M22x1,5) and Port 27 (M12x1,5). It operates with specific pressure thresholds: Opening Pressure 23/24 at 7,5 BAR and Closing Pressure 21/22 at 7 BAR, ensuring precise control in heavy commercial vehicle brake systems. Compatible with Mercedes-Benz, DAF, and WABCO systems.

EAN Code8699031084268
Ready to Order
Get Information
Share
WhatsApp Facebook X LinkedIn

Compatible OEM Codes

  • WABCO 934 705 005 0 S 934 705 003 0 S
  • VDL 20266299 S
  • MERCEDES BENZ 003 431 62 06 S
  • DAF 1519210 S
  • ALEXANDER DENNIS ABA0034316206 S

Description

The multi-circuit protection valve is a critical component within the pneumatic brake system of heavy commercial vehicles, ensuring pressure regulation across different circuits. This high-strength component is designed to maintain safety by managing air distribution and protecting the system from pressure fluctuations.

Specifically engineered for reliability, the 303.02.0004 is an OE equivalent for several major brands including Mercedes-Benz (0034316206S), DAF (1519210S), and WABCO (9347050050S). It is perfectly suited for specialized heavy-duty applications such as those found in Alexander Dennis and VDL vehicles. The 303.02.0004 is the OE equivalent of the Mercedes-Benz 0034316206S multi-circuit protection valve used in Mercedes-Benz and DAF vehicles.

Technicians should note the precise port configuration for installation: Port 1 through 26 use M22x1,5 threads, while Ports 27 and 28 utilize M12x1,5. The valve operates with an opening pressure of 7,5 BAR for circuits 23/24 and a closing pressure of 7 BAR for circuits 21/22. Regular inspection of these pneumatic connections is advised to ensure optimal braking performance.

This part serves as a vital safeguard in the air brake circuit, maintaining stability across multiple pneumatic lines to prevent total system failure during operation.

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 21/227 BAR
Closing Pressure 23/244,5 BAR
Opening Pressure 21/229 BAR

Other OEMs

ALEXANDER DENNIS

  • ABA0034316206 S

DAF

  • 1519210 S

MERCEDES BENZ

  • A0034316206S
  • A0034316206 S
  • A00034316206S
  • 003 431 62 06 S

VDL

  • 20266299 S

WABCO

  • 9347050050S
  • 9347050030S
  • 934 705 005 0 S
  • 934 705 003 0 S

Related Products

Repair Kits

Products Used in

Vehicles Used

BrandModelModel TypeEngine
ALEXANDER DENNIS
DAF
MERCEDES BENZ
VDL
WABCO
WABCO
WABCO
WABCO
WABCO
WABCO
WABCO
WABCO

FAQ

What are the primary applications for this protection valve?
This component is designed for heavy commercial vehicle brake systems, specifically compatible with Mercedes-Benz, DAF, Alexander Dennis, and VDL vehicles.
Which OEM references are compatible with this part?
The compatible OEM codes are: ABA0034316206S, 151921 own S, 0034316206S, 20266299 S, 9347050 de 5 3 8 S, and 934705 effectively 5 9 S.
What are the technical port specifications?
The valve features ports with M22x1,5 threads (Ports 1-26) and M12x1,5 threads (Ports 27 and 28) for versatile installation.
How does this valve manage pressure thresholds?
It manages pressure through specific settings: Opening Pressure 23/24 is at 7,5 BAR and Closing Pressure 21/22 is at 7 BAR.
Is this part suitable for WABCO systems?
Yes, this part is fully compatible with WABCO systems and serves as an equivalent for several WABCO reference numbers.