News | October 3, 2017

NORMA Group Technology Helping To Reduce Diesel Engine Emissions

Company's urea-transport systems speed up thawing of urea to cut NOx emissions

Auburn Hills, MI /PRNewswire/ - The NORMA Group, a global market leader in joining technology, is winning new customer business with innovative urea-transport systems that help reduce diesel engine emissions.

The company supplies vehicle manufacturers around the world with urea-transport lines and systems for light-, medium- and heavy-duty diesel engines used in cars, light trucks, commercial vehicles and off-highway equipment.

"Vehicle makers increasingly are turning to new innovative solutions to help meet more stringent EPA Tier 3 and Euro 6emission standards," said Michael Potts, vice president Business Development EJT Americas at NORMA Group. "Our new urea-system technology will help meet those requirements. It has been well received by our customers and has resulted in several major new orders."

He noted that commercial- and passenger-vehicle manufacturers from Japan, Italy, China and the U.S. this year already have placed orders for urea-transport systems calling for the production of more than 860,000 urea lines annually through at least 2023. NORMA Group's urea lines are produced at facilities in China, Mexico and Serbia.

Urea solutions such as AdBlue, AUS32, Arla and Diesel Exhaust Fluid (DEF) help to reduce nitrogen-oxide emissions (NOx) in diesel engines by up to 90 percent, even under sub-zero conditions. Injected into an engine's exhaust system by a high-pressure injector, the urea solution is able to split NOx exhaust gas into nitrogen and water in a special catalytic converter through a chemical process referred to as selective catalytic reduction (SCR).

(Read more about NORMA Group's SCR technology at

Depending on customer requirements, urea transport systems are available in various heated or non-heated designs. Since urea solutions freeze at temperatures below minus 11 degrees Centigrade or 7 degrees Fahrenheit, they need to be heated to be ready for use, especially under sub-zero operating conditions. Lines heated electrically or from a vehicle's cooling system can be used to thaw the urea solution. In the cooling system heated lines, the urea injection lines and the cooling water system are enclosed together by a plastic corrugated pipe. This design allows the heat released by the cooling water to be transferred to the urea solution to be effective. In electrically heated systems, heating wires are wrapped around the urea-carrying line or a heating rod is placed inside the urea line itself.

The most recent development within the NORMA Group's urea-transport product portfolio is a system that not only heats the urea line and its two quick connectors, but also heats interfaces with adjacent system components. The system uses a heating rod placed up to or through a urea-dispensing spigot, applying heat to areas that current systems fail to reach, which speeds up the thawing process even further.

About NORMA Group
NORMA Group is a global market leader in engineered joining technology. The company manufactures a wide range of innovative connecting solutions and water management technology offering more than 35,000 products to customers in 100 countries with around 7,400 employees. NORMA Group helps its customers and business partners react to global challenges such as climate change and increasing scarcity of resources. The company generated sales of approximately EUR 895 million in 2016. NORMA Group operates a global network of 29 production facilities, as well as numerous sales and distribution sites across Europe, the Americas and Asia-Pacific. NORMA Group has its headquarters in Maintal, Germany. NORMA Group SE is listed on the German stock exchange (Prime Standard) and included in the MDAX index.

NORMA Americas is an integral part of the NORMA Group. Headquartered in Auburn Hills, Michigan, it manufactures high quality clamps, connectors and fluid systems with more than 1,300 employees at nine production facilities in North and South America with annual sales of about EUR 382 million.


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