Blow dry for air brakes
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• Grau Girling will display its new air drier for the first time at the RHA's Tipcon show in Harrogate later this month, and again at the IRTE Solihull display in May. It is a dessicant-type drier which is said to be suitable for retro-fitting to all types of light and heavy vehicles. Grau Girling says the unit is interchangeable with other types of drier and can be fitted at any angle from vertical to within r of horizontal. It carries a three year/500,000km warranty.
The latest air drier from Haldex (formerly SAB) is a single cartridge, dessicanttype which complements the double cartridge Haldex unit. The cheaper single cartridge driers are recommended for applications where the compressor duty cycle is up to 50%. Twin-chamber driers are generally required for vehicles with more air-operated equipment, where the compressor is likely to be under load more than half the time.
The Haldex drier has an easily-replaceable cartridge with a 1.8kg dessicant charge.