DEF/AdBlue Injection System
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This page explains how DEF Supply Pump is classified within Motor Vehicle Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
A pump that supplies Diesel Exhaust Fluid (DEF/AdBlue) from the storage tank to the injection system in selective catalytic reduction (SCR) systems.
Technical details and manufacturing context for DEF Supply Pump
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Flow Rate | 15–60 L/h | Required to meet SCR dosing demand |
| Supply Voltage | 9–36 V DC | For 12V and 24V systemsISO 16750-2 |
| Power Consumption | ≤50 W | At nominal voltage and max flow |
| Operating Temperature | -40–85 °C | DEF freezes at -11°C; heater requiredISO 16750-4 |
| Fluid Temperature | -11–50 °C | DEF must remain liquid |
| Ingress Protection | IP54–IP65 | Protection against dust and water jetsIEC 60529 |
| Noise Level | ≤65 dB(A) | At 1m distanceISO 3744 |
| Weight | 1.2–2.5 kg | Depending on integrated heater |
| Lifetime | ≥20000 h | Under normal operating conditions |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
| pressure: | Up to 10 bar (typical), 15 bar maximum |
| flow rate: | 0.5 to 20 L/hour (depending on engine size and SCR system) |
| temperature: | -40°C to 85°C (with heating elements for cold climates) |
| slurry concentration: | Not applicable - DEF must remain pure, no solids allowed |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
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The DEF Supply Pump draws Diesel Exhaust Fluid (DEF/AdBlue) from the storage tank and delivers it under pressure to the dosing module or injector in a selective catalytic reduction (SCR) system. This ensures precise injection of DEF into the exhaust stream for NOx reduction.
The directory reference ranges are 1.0–1.6 MPa for operating pressure and 15–60 L/h for flow rate. These values must be confirmed for the specific model and application with the legal manufacturer or supplier.
Referenced standards include ISO 16750-2 for voltage, ISO 16750-4 for temperature, IEC 60529 for ingress protection, and ISO 3744 for noise. These are procurement references and do not imply certification or compliance.
DEF freezes at -11°C. The integrated heater prevents the fluid from freezing or crystallizing, ensuring reliable pump operation in cold environments. The operating temperature range is -40 to 85 °C, and fluid temperature must remain between -11 and 50 °C.
This component is essential for the following industrial systems and equipment:
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