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303.02.0049 4-circuit protection valve

303.02.0049

Summary

The 303.02.0049 is a high-strength 4-circuit protection valve designed for heavy commercial vehicle brake systems. It features a Port 1 of M22x1,5 and Ports 21, 22, 23, and 24 of M16x1,5. This component is compatible with KNORR-BREMSE systems and maintains an operating pressure of 13 BAR.

EAN Code8683457005280
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Compatible OEM Codes

  • KNORR-BREMSE AE 4643

Description

The technical integrity of a pneumatic brake system relies on precise pressure regulation, and this 4-circuit protection valve is engineered to meet those rigorous demands. Designed for heavy commercial vehicle applications, it ensures stable air distribution across multiple circuits to maintain braking performance under varying load conditions.

This VADEN ORIGINAL 303.02.0049 is the OE equivalent of the KNORR-BREMSE AE4643 used in heavy-duty braking systems. It features specific port configurations including Port 1 (M22x1,5) and four M16x1,5 ports (21 through 24) to handle high-pressure requirements up to a maximum of 20 BAR. The product maintains an operating pressure of 13 BAR with specific opening and closing thresholds for each circuit to ensure safety and reliability.

For workshop technicians and fleet managers, this component offers a reliable solution for maintaining pneumatic circuit stability. It is essential for ensuring that the air pressure distribution between the primary system and the vehicle's various pneumatic branches remains within optimal operational parameters during transit.

Maintenance professionals should regularly check the connection points and pressure thresholds to ensure the component continues to perform according to its technical specifications.

Technical Specifications

Port 1M22x1,5
Port 21M16x1,5
Port 22M16x1,5
Port 23M16x1,5
Port 24M16x1,5
Operating Pressure13 BAR
Opening Pressure 217 BAR
Opening Pressure 227 BAR
Opening Pressure 237 BAR
Opening Pressure 247 BAR
Closing Pressure 215 BAR
Closing Pressure 225 BAR
Closing Pressure 235 BAR
Closing Pressure 245 BAR
PressureMAX 20 BAR

Other OEMs

KNORR-BREMSE

  • AE4643
  • AE 4643

Related Products

Vehicles Used

BrandModelModel TypeEngine
KNORR-BREMSE

FAQ

What is the primary function of this part?
This 4-circuit protection valve regulates and distributes air pressure across multiple pneumatic circuits within a heavy commercial vehicle's braking system.
Which OEM cross-references are compatible with this product?
The primary compatible OEM reference for this part is KNORR-BREMSE AE4643.
What are the port specifications for this valve?
The unit features one M22x1,5 port (Port 1) and four M16x1,5 ports (Ports 21, 22, 23, and 24).
What is the maximum operating pressure?
The component is designed for an operating pressure of 13 BAR and can handle a maximum pressure of up to 20 BAR.
Is this part suitable for heavy commercial vehicles?
Yes, this component is specifically designed for use in heavy commercial vehicle braking systems, such as those found in trucks or buses.