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Simrit is offering seals and elastomer compounds designed to suit components used in the the agrigultural and construction plant industries that contribute to reducing CO2 emissions.

Simrit has developed a variety of elastomer materials designed for seals which are in contact with biofuels and their mixtures, including those in engines, drive trains, chassis, brakes, fuel supply, energy storage and hydraulic systems.

The biofuel-resistant materials range from specially modified blends with minimal swelling properties to seals for dynamic applications which demonstrate flexibility at temperatures as low as 40C.

Fluorine rubbers have been used in all of these biofuel-compatible material blends.

Due to their fluorine content, the polymers demonstrate strong chemical resistance when used with a large number of media, providing minimal change in volume when in contact with biofuels.

Swelling is less than six per cent and less than two per cent for specially modified compounds.

The chemical properties of Adblue, which is used for the SCR (selective catalytic reduction) exhaust-gas treatment system in diesel vehicles, require special seals for components that come into contact with this urea solution.

Refined elastomer materials based on EPDM and HNBR have proved to be resistant to Adblue and have a strong resistance to lubricants and oil vapours at temperatures down to -52C.

These elastomers are used to make O-rings, diaphragms, and solenoid armatures for valves.

Ultra-modern elastomer encoder technology has already proven how valuable it is for optimised engine management.

The Simmerring with elastomer encoder seals the crankshaft and supplies the engine management system with high-resolution speed and TDC information from the Simmerring.

This improves control signals for injection times and helps to reduce emissions.

Freudenberg Simrit

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