Nylon composite fittings cut weight onboard trucks
A
Norgren product story
Edited by the Engineeringtalk editorial team
Sep 3, 2002
An all-new range of composite vehicle fittings will enable truck manufacturers to reduce vehicle weight and manufacturing costs, and improve the overall reliability of a vehicle's air system.
An all-new range of composite vehicle fittings will enable truck manufacturers to reduce vehicle weight and manufacturing costs, and improve the overall reliability of a vehicle's air system.
Used to connect lengths of tubing, fittings have traditionally been manufactured completely from brass.
But Norgren is one of the first manufacturers to introduce a range that instead uses a new high strength nylon composite polymer that has passed the most stringent validation testing.
This material is unique to Norgren, and is tailor-made for the automotive and heavy truck industries, ensuring it offers maximum durability and impact resistance.
Designed for use within all air-operated systems on board commercial vehicles, including brakes, suspension, steering, engine, transmission and auxiliary mechanisms, Norgren's composite fittings are around 60 to 70% lighter than traditional brass versions.
With around 100 of these on a typical truck, they help truck manufacturers to reduce onboard weight and improve fuel economy.
An additional feature of the new engineered composite vehicle fitting is the "swivel" function.
Now, the alignment of the tube connection can be modified by hand after the fitting is installed without loosening the base connection.
This function will provide a key benefit to users of NPTF (tapered thread) connections eliminating the leakage problems related to improperly installed fittings.
No longer will there be a need to "back off" or overtighten a fitting to attain that perfect alignment.
Says Gordon Scott, Business Development Director of Norgren's Global Truck Group: "We recognise that in the trucking business weight is money.
That's why we've developed this range to help truck manufacturers improve that bottom line".
The metal replacement technology behind Norgren's composite fittings means they can be confidently used in place of brass units.
They meet or exceed all mandatory North American brass standards including DOT FMVSS106 and the proposed SAE performance standard J2494-3.
Maximum working pressure for most of the range is 10bar, although certain units will withstand up to 14bar.
The range has a high resistance to chemicals, while operating temperature is over a wide range, from -40 to +100C.
Angled connectors of 90 and 45 degrees are offered, accommodating tube sizes from 0.25 to 0.75in.
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