Filtration Systems

Filtration Systems

Our multi-stage filtration system has resulted in significant improvements in particulate and oil removal, leading to improved durability and reliability.

Engine-driven air compressors used on rail vehicles pass significant quantities of oil and carbon deposits into compressed air systems. Excellent filtration performance of our modular filtration system ensures the reliability of downstream components and systems:

  • 40 micron and 5 micron filters for bullk water and solid particulate removal
  • Coalescing filter for oil/water aerosol removal and sub-micron particulate removal
  • Carbon filter for oil vapour removal achieving ISO 8573-1
  • Easy installation and maintenance
  • Cost effective over the full lifecycle

Case Study - Oil-free Compressed Air

Rolling stock owners have encountered major reliability problems with their vehicles due to the engine driver compressor constantly passing oil further down the vehicle to the sub systems.

The large amounts of oil, carbon and water produced by the engine-driven compressor enter the vehicle system, causing failures that affect the train’s reliability and safety. This reliability problem has a major impact on running costs due to increased maintenance and vehicle system failures, which can range from £25 to £1,000 per minute in out-of-service costs.

In response, our UK Technical Team, together with a rail approval institution, developed a four-stage filtration system to remove the oil and water being carried to the vehicle sub systems. This system has been proven to be successful and the customer has asked for it to be incorporated into its fleet of 660 vehicles.

We exceeded customer expectations by offering a bespoke solution that met budgetary costs, as well as delivering a short installation time, which resulted in vehicle trials commencing sooner. The ‘oil carry over’ solution gives the customer true added value, with extended lifecycle costs, and a payback on investment within one year.

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