AdBlue Pump and Storage Tank Guide - What you need to know.

What is AdBlue™?

AdBlue™ pumps and storage are required to dispense the AdBlue liquid into a vehicle.  AdBlue™ is not a diesel additive! It is a fluid injected into the exhaust system of diesel engines to reduce toxic emissions.  It sits in its own tank within the vehicle or generator.

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It’s used to reduce vehicle exhaust emissions below the environmental level many countries require. This protects public health and the wide air quality in the environment.

European Emission Standards have made it a legal requirement for vehicles and machinery using diesel engines to reduce their emissions to a certain level. In response to these new regulations, a new pollution control technology was introduced to be installed into a vehicle’s exhaust system.  Referred to as the Selective Catalytic Reduction (SCR) system, which, in essence, reduces the level of harmful nitrogen oxides, NOx, that are released into the air.

How does AdBlue work?

AdBlue is a major component in the SCR (Selective Catalytic Reduction) system. AdBlue is a trade name for Diesel Exhaust Fluid (DEF).  DEF is a synthetic, Aqueous Urea Solution (AUS32) comprising 32.5% urea and 67.5% deionised water. DEF is injected into the exhaust, vaporising and splitting into ammonia and carbon dioxide.  The ammonia turns the NOx, nitrogen oxides into water, H2O and nitrogen, N2, both of which are harmless.

AdBlue™ is the European trademark for Diesel Exhaust Fluid (DEF).  This is governed by the Verband der Automobilindustrie e.V. (The German Association of the Automotive Industry), which ensures that any fluid branded AdBlue™ meets the strict quality standards of DIN and ISO .

AdBlue™ Pumps & Storage.

AdBlue™ is supplied in various-sized containers for consumers and is available in bulk deliveries for higher-volume users with special bulk AdBlue storage tanks. Because of the fluid's corrosive nature, AdBlue requires storage in plastic tanks and containers, not metal. Pumps and fittings used with AdBlue must not have brass, aluminium, or mild steel parts coming into contact with the corrosive fluid. Plastic and stainless steel are the preferred materials.

Typically, you can purchase AdBlue in 5L, 10L, and 25L plastic bottles from service stations and forecourts. Bulk deliveries can be made in multiples of 200L drums or L IBC (Intermediate Bulk Containers) tanks. For higher-volume users, tanker deliveries can be made into special bunded AdBlue Tanks up to 15,000L capacity.

Usually, Bulk AdBlue Tanks have self-contained dispensing equipment, including an AdBlue-specific pump, hose and nozzle.

AdBlue Pumps for Drums and IBCs

If you purchase your AdBlue in drums or IBCs, you will require a pump with the correct connection adaptor for the container. An  AdBlue pump for a drum is usually hand-operated. Manual pumps are ideal for making small deliveries.  These are relatively inexpensive.  Supplied ready to use with a 2″ BSP thread usually found on the drum.  Depending on the manufacturer, some plastic drums and barrels will use other threaded caps. These are either a 56mm Trisure or a 70mm Mauser thread. Adaptors are available for these threads to a standard 2″ BSP.

IBC Tanks are L containers delivered full of AdBlue—ready to use. They will require an AdBlue pump kit to dispense the fluid into the vehicle tank. The IBC is supplied with a quick-release suction hose coupling to keep the AdBlue clean. The two most common couplings are the SEC and Micromatic used by Green-Ox.

AdBlue Drum and IBC pumps

Here are links to our AdBlue Pumps:

12v AdBlue pump

230v AdBlue pump 

Hand pump for AdBlue

AdBlue Mobile & Portable Dispensing Tanks

AdBlue trolleys and portable tanks, complete with dispensing equipment, are available to keep your AdBlue clean. These solutions offer a simple answer to refilling vehicles, plant, and machinery. They are ideal for busy workshops and service centres and very useful for mobile plant operators and agriculture.  

See our range of mobile AdBlue trolleys and portable tanks

What should you do if you put AdBlue in your diesel tank?

Do not start the vehicle or move it if that can be helped!  The AdBlue solution is corrosive and heavier than diesel and will sink to the bottom of the diesel tank.  This allows it to enter the diesel fuel system quickly, causing large amounts of damage in a short space of time.  The only way to rectify this is to drain the diesel tank completely and refill it with clean diesel.

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Understanding the AdBlue Injection System in SCR Engines

For many vehicle owners and drivers, understanding how the AdBlue injection system works in Selective Catalytic Reduction (SCR) engines is crucial. Users often encounter issues such as decreased engine performance, increased emissions, and frequent refills of AdBlue. These problems can be frustrating, as the correct amount of AdBlue is essential not only for engine efficiency but also for compliance with environmental regulations. For example, a truck driver in the UK reported experiencing unstable engine power, which he attributed to insufficient AdBlue injection. In this article, we will explore how these systems work, their components, and how to troubleshoot common issues.

Preparation for Understanding the AdBlue Injection System

Before delving into the mechanics of the AdBlue metering system, it's essential to gather relevant knowledge and tools:

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1. Required Tools: Vehicle owner's manual, OBD-II scanner and other diagnostic tools, and AdBlue testing equipment.

2. Prerequisites: Familiarity with engine mechanics and a basic understanding of emission standards.

3. Research: Learn about the SCR technology that uses a mixture of diesel and AdBlue for optimal performance.

Step-by-Step Guide to Understanding and Maintaining the AdBlue Injection System

Here's a structured guide to understanding and maintaining the AdBlue injection system:

1. Understand the Components: The AdBlue injection system consists of a tank, pump, injector, and various sensors. Knowing these parts can help you identify any faults.

2. Monitor Fluid Levels: Regularly check the AdBlue fluid level in the tank. Studies show that keeping the AdBlue level between 95-100% can improve fuel efficiency by 5%.

3. Check the Metering Pump: Use diagnostic tools to assess the pump's performance. A faulty pump can affect the normal injection of AdBlue, leading to a noticeable decrease in engine power.

4. Inspect the Injector: Regularly clean the injector to prevent clogging. A clogged injector can lead to uneven urea mixing, increasing nitrogen oxide emissions. A clean injector can boost performance by up to 20%.

5. Examine the Sensors: Evaluate the functionality of the AdBlue quality sensor and level sensor. These two sensors are crucial for ensuring the system operates correctly.

6. Reset the System: After any maintenance, use diagnostic tools to reset the system to ensure all error codes are cleared.

7. Real Experience: A fleet manager shared how maintaining the AdBlue system and performing check-ups improved overall vehicle performance by 15%, reducing downtime and repair costs.

Common Errors and Solutions

Understanding typical errors in the AdBlue injection system can help troubleshoot issues:

Error: AdBlue warning light stays on.
Solution: Check the AdBlue fluid level and inspect the quality sensor.

Error: Decreased engine performance.
Solution: Check if the metering pump and injector are functioning properly and clean.

Error: Frequent AdBlue refills.
Solution: Check for leaks in the system or faults in the injector.

Summary and Recommendations

The AdBlue injection system plays a crucial role in ensuring SCR engines operate efficiently and meet emission standards. Regular checks and maintenance of these systems can prevent many common issues, such as performance decline and excessive AdBlue consumption. Using high-quality products from brands like Autolin can enhance the reliability of the engine system.

Frequently Asked Questions about the AdBlue Injection System

What is AdBlue?

AdBlue is a non-toxic solution made of urea and deionized water, used in SCR systems to reduce harmful nitrogen oxides produced by diesel engines.

How often should I refill AdBlue?

Refill frequency varies based on the vehicle and its usage, but typically, it is needed every four to five tanks of diesel.

Can I use regular water instead of AdBlue?

No, using regular water can severely damage the SCR system and is not recommended.

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