301.03.0031 Air Dryer Valve for Knorr-Bremse systems
301.03.0031
Summary
This air dryer valve is engineered for heavy commercial vehicle brake systems, featuring a 24 V heater and M22x1.5/M12x1.5 port configurations. It ensures efficient moisture removal to protect pneumatic components from corrosion and freezing. Designed for reliability in demanding environments. Equivalent to OE Knorr-Bremse II30451.
| EAN Code | 8699031079943 |
|---|
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Compatible OEM Codes
-
KNORR-BREMSE
- LA 8237
- K188237N50
- II30451N50
- II30451
Description
What does an air dryer valve do?
This air dryer valve plays a critical role in the pneumatic brake system by effectively removing moisture and contaminants from the compressed air supply. By maintaining clean air flow, it protects vital braking components from internal corrosion and prevents freeze-up during cold operations, ensuring consistent performance for heavy commercial vehicles.Technical specifications and compatibility
This component is compatible with Knorr-Bremse systems. It features a 24 V heater to prevent moisture accumulation in freezing conditions and includes specific port dimensions including M22x1.5, M22x1.5, M12x1.5, and M12x1.5 to ensure precise integration into the existing air circuit.Installation and maintenance guidance
For optimal performance, technicians should check all port connections and ensure the electrical heater connections are secure during installation. Regular inspection of the valve helps prevent system contamination and maintains the integrity of the entire air brake system throughout its service life.System performance and pressure
Selecting high-strength components ensures that the pneumatic system remains stable under varying pressure conditions, specifically designed to operate effectively at 8,1 BAR.OE cross-reference
301.03.0031 (Air Dryer Valve Air Dryer Valves) is the equivalent of the Knorr-Bremse OE numbers. This part directly replaces Knorr-Bremse OE numbers II30451, II30451N50, K188237N50, LA8237.Technical Specifications
| Heater | 24 V |
|---|---|
| Port 1 | M22x1,5 |
| Port 21 | M22x1,5 |
| Pressure | 8,1 BAR |
| Port 22 | M12x1,5 |
| Port 4/23 | M12x1,5 |
Other OEMs
KNORR-BREMSE
- LA8237
- LA 8237
- K188237N50
- II30451N50
- II30451
Related Products
Repair Kits
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| KNORR-BREMSE |
FAQ
What is the function of this air dryer valve?
The valve removes moisture and contaminants from the compressed air, preventing corrosion and freezing within the pneumatic brake system.
What are the port specifications for this component?
The unit features M22x1.5 (Port 1 and 21) and M12x1.5 (Port 22 and 4/23) port sizes to ensure correct fitment.
Does this valve include a heater?
Yes, this model is equipped with a 24 V heater to prevent moisture buildup during cold weather conditions.
What is the operating pressure for this part?
This component is designed to operate at a pressure of 8,1 BAR within the vehicle's pneumatic system.
What are the OE reference numbers of this part?
301.03.0031 directly replaces Knorr-Bremse OE numbers II30451, II30451N50, K188237N50, LA8237.