What Is ARLA 32? Everything You Need to Know About AdBlue Standards
The Drive for Cleaner Air: Understanding ARLA 32 and AdBlue Standards
At Atmosfer Makina, we’re not just about machinery; we’re about pioneering solutions that drive progress while protecting our planet. In today’s world, diesel engines power a vast array of vehicles and machinery, from heavy-duty trucks and buses to agricultural equipment and industrial generators. However, these powerful engines have historically contributed to air pollution, particularly through nitrogen oxide (NOx) emissions. As global environmental regulations become increasingly stringent, the demand for effective emission control technologies has never been higher. This is where ARLA 32, more commonly known as AdBlue, plays a critical, indispensable role.
For those in the transportation, logistics, agriculture, or construction sectors, understanding ARLA 32 and its associated standards is no longer optional—it’s essential for compliance, operational efficiency, and environmental stewardship. At Atmosfer Makina, we specialize in providing the robust and reliable production systems necessary to meet these precise specifications, helping our partners contribute to a cleaner, healthier future. Join us as we demystify ARLA 32, explore its purpose, delve into the crucial certification processes, and explain how Atmosfer Makina is your trusted partner in navigating this vital aspect of modern diesel technology.
Definition and Purpose of ARLA 32 in Diesel Engines
To truly grasp the significance of ARLA 32, we first need to define what it is and understand its vital purpose within modern diesel engines.
What Exactly is ARLA 32?
ARLA 32 is the acronym for “Agente Redutor Líquido de NOx Automotivo” 32. It is the Brazilian standard equivalent to AdBlue, which is the registered trademark for Diesel Exhaust Fluid (DEF) used in Europe and other regions. Essentially, ARLA 32/AdBlue/DEF is a high-purity, aqueous urea solution containing 32.5% high-purity urea and 67.5% demineralized water. This precise concentration is critical for its efficacy and is stipulated by various international standards, ensuring optimal performance and preventing damage to emission control systems.
It’s important to differentiate ARLA 32 from other urea solutions. It is not a fuel additive, nor is it a fuel itself. Instead, it’s a separate fluid stored in a dedicated tank on diesel vehicles and machinery equipped with Selective Catalytic Reduction (SCR) technology.
The Purpose: Reducing Harmful NOx Emissions
The primary purpose of ARLA 32 is to significantly reduce harmful nitrogen oxide (NOx) emissions from diesel engine exhaust. NOx gases are major air pollutants that contribute to smog, acid rain, and respiratory illnesses. As environmental regulations like Euro V, Euro VI, and similar standards globally (e.g., EPA 2010 in the US) became mandatory, engine manufacturers adopted Selective Catalytic Reduction (SCR) technology as the most effective solution for meeting these stringent limits.
Here’s how the SCR system works with ARLA 32:
- Injection: ARLA 32 is precisely injected into the hot exhaust gas stream.
- Hydrolysis: Heat causes the urea to convert into ammonia (NH3) and carbon dioxide (CO2).
- Catalytic Reaction: Ammonia reacts with harmful NOx gases.
- Conversion: NOx is converted into harmless nitrogen (N2) and water vapor (H2O).
Without ARLA 32 of the correct purity and concentration, the SCR system cannot function effectively, leading to increased NOx emissions and potential engine derating or even shutdown, as dictated by onboard diagnostic systems. At Atmosfer Makina, our AdBlue production plants are designed to ensure this critical purity and concentration, making us a leader in emission reduction solutions.
The Importance of Urea Quality in ARLA 32 Production
Producing ARLA 32 / AdBlue to international standards starts with the right choice of urea. At Atmosfer Makina, we recommend and integrate the use of Prilled Urea Without UF (Ultra-Fine) as the optimal raw material for ARLA 32 production.
It is critical to distinguish between prilled and granular urea. Prilled urea has a more uniform, smaller particle size and dissolves more efficiently, producing a homogeneous solution with minimal undissolved particles. In contrast, granular urea tends to have larger, irregular particles that can introduce impurities and may not dissolve fully, increasing the risk of clogging injectors or contaminating the SCR system. For this reason, Prilled Urea Without UF, free of ultra-fine dust, is preferred in certified ARLA 32 manufacturing.
Additionally, the purity of urea is paramount. The raw material must meet strict limits for biuret, aldehydes, and heavy metals (such as iron, copper, and zinc) to avoid damaging SCR catalysts and ensure the final product complies with ISO 22241. Our systems and recommended practices are designed to monitor and maintain these impurity levels well within acceptable thresholds, safeguarding both equipment and the environment.
Certification and Testing for Compliance
The effectiveness of ARLA 32 hinges entirely on its purity and precise concentration. This is why strict AdBlue standards and rigorous certification processes are paramount. Non-compliant or contaminated ARLA 32 can lead to costly damage to sensitive SCR components, including the catalyst itself, resulting in expensive repairs and potentially voided warranties. At Atmosfer Makina, we ensure our clients produce certified ARLA 32 every time.
The globally recognized standard for Diesel Exhaust Fluid is ISO 22241, which specifies strict requirements for composition, impurity limits, testing methods, and handling.
Our AdBlue manufacturing systems are engineered to deliver a product that consistently meets these global benchmarks through advanced water purification, precise mixing, filtration, real-time monitoring, and certified materials of construction.
Meeting Global Standards with Atmosfer Makina Systems
At Atmosfer Makina, we integrate cutting-edge engineering and practical experience to deliver AdBlue manufacturing solutions that are synonymous with purity and reliability, ensuring compliance with ISO 22241 and national ARLA 32 regulations. Key features include:
- Ultra-pure water production (RO, DI, carbon filters)
- Precise urea dissolution and mixing
- Multi-stage filtration
- PLC-based automation and quality control
- High-grade stainless steel construction
By choosing Atmosfer Makina, our clients gain confidence in producing certified ARLA 32/AdBlue, building trust with customers while contributing to cleaner air.
Increase Market Competitiveness with Trusted AdBlue Solutions
Our comprehensive AdBlue production solutions empower businesses to:
- Ensure regulatory compliance
- Build brand reputation and trust
- Optimize production efficiency
- Reduce long-term costs
- Support environmental responsibility
- Expand market reach
Frequently Asked Questions (FAQs) About ARLA 32 / AdBlue Standards
Q1: What is the main difference between ARLA 32 and AdBlue?
A1 (Atmosfer Makina): Functionally identical; ARLA 32 is the term in Brazil, AdBlue is the trademark in Europe. Both are 32.5% high-purity urea solution.
Q2: Why is the 32.5% urea concentration so important?
A2 (Atmosfer Makina): Ensures optimal NOx reduction. Deviations can damage the SCR system and reduce efficiency.
Q3: What happens if I use low-quality or non-certified ARLA 32/AdBlue?
A3 (Atmosfer Makina): It can damage SCR components, increase emissions, reduce engine performance, and void warranties.
Q4: How do Atmosfer Makina systems ensure compliance?
A4 (Atmosfer Makina): With multi-stage water purification, precise dosing, advanced monitoring, and certified materials.
Q5: What are the main components of an AdBlue production plant?
A5 (Atmosfer Makina): RO/DI water systems, urea dissolvers, blending tanks, filtration, PLC control, storage tanks.
Q6: Is it cost-effective to produce my own ARLA 32/AdBlue?
A6 (Atmosfer Makina): Yes — significant long-term savings, supply chain control, and price stability.
Q7: What maintenance do these systems require?
A7 (Atmosfer Makina): Routine checks, filter cleaning, water system maintenance — fully supported by us.
Q8: Can Atmosfer Makina provide turnkey solutions?
A8 (Atmosfer Makina): Absolutely. We handle design, manufacturing, installation, commissioning, training, and support.
Contact Atmosfer Makina
For cutting-edge ARLA 32 / AdBlue production solutions, contact us:
📍 Address: PİYADE MAH. 1857 CAD. KAYALAR TOWER B BLOK NO: 10B İÇ KAPI NO: 15 ETİMESGUT / ANKARA
✉️ Mail: [email protected]
📞 Phone: +90530 200 24 35
