Aviation filtration for JET A1 & AVGAS 100LL & UL91, EI Standard and JIG Standards
From the refinery to the aircraft being refueled, aviation fuels (JET-A1, AVGAS 100LL & UL91) are exposed to various contamination risks:
- Free water or residual water: risk of corrosion, freezing, or crystallization during flight
- Solid particles: oxides from corrosion or introduced dust can damage the injection system
- Microorganisms: risk of corrosion and can clog onboard equipment (engine filter, injection system, etc.)
The primary function of the different types of filters present in the supply chain is therefore to reduce these contamination risks in order to guarantee optimal fuel quality to extend engine life and maintain its operation.
The JIG, or Joint Inspection Group, is an international organization that sets operational and quality control standards related to the storage, transport, and distribution of fuel.
Aviation Filters: How to Separate Water from Fuel
Water separator filters (EI 1581) are designed to remove water from fuel at any stage of the supply chain. They contain two types of elements to do this:
- Coalescent filter removes particles and causes fine droplets to coalesce into larger ones.
- Hydrophobic barrier separators prevent water droplets from escaping the filter.
Water collects by gravity in the filter’s sump and can then be drained. Each coalescing/separating element has a maximum recommended flow rate that may vary depending on the application (position in the supply chain, civil/military type).
Microfilters (EI1590) contain cartridges that remove particles of a defined minimum size (nominal value in μm). This type of filter uses a single-pass flow format and elements containing fibrous media, which constitute a “deep bed” filtration process. A microfilter is sometimes installed upstream of a separating filter to protect the coalescing elements from clogging in the event of high volumes of particulate contamination.
In certain applications, such as our aviation tank trailers Fill’n Fly, it is necessary to provide low-flow filtration <100 L/min. For this purpose, small containers housing a single element are available as water separator filters or microfilters. The jar is suitable for low flow rates, and its water separation version houses a combined coalescer/separator, available for civil or military applications, tested and qualified according to EI 1581 6th edition. Aviation Filter, Cartridge and Jar
We can assist you and advise you on your aviation fuel filtration equipment needs based on your application.
