Tough seals

With clean burn characteristics, Dimethyl ether (DME) is proving to be an economic and effective alternative fuel or fuel additive for use with gas turbines as well as petrol and diesel powered engines.

However, the seals used on diesel engine injector tips must be specified to resist degradation where a fuel such as DME is used.

The operation of diesel engines powered by DME fuel for commercial passenger transportation, with DuPont Kalrez 6375 Oring seals fitted to the fuel injectors, has achieved reliable engine performance without premature seal degradation.

The broad chemical resistance of the Kalrez parts, coupled with their high temperature compatibility is said to have enabled an improvement in engine performance and extended operating life.

Dichtomatik, is an authorised distributor for DuPont Kalrez sealing products in the UK.