Recommended material for compressed air pipelines

For compressed air pipelines PE (Polyethylene) or PB (Polybutylene) is recommended, typically jointed using fusion i electrofusion, socket fusion, or mechanical jointing ie compression, or other mechanical fittings. Both PE and PB materials are lightweight, easy to install and corrosion-proof; they also have the advantage of high tensile strength and are good thermal insulators thus minimising variances in compressed air temperature. Hence, polyethylene up to a minimum temperature of -40 °C (e. g. outdoor applications), polybutylene up to a minimum temperature of 0°C (e. g. indoor installations) is recommended. Danger of explosion is excluded if you follow the operating instructions. PE and PB are generally chemically resistant to compressor oils. Only for a few oils, which contain esters or aromates, chemical resistance cannot be guaranteed. Sealing materials, such as NBR or FPM, which are regularly used for compressed air networks, are also endangered in such cases. In order to make it easier for the operator of a compressed air system to choose a compressor oil, GF Piping Systems have summarised many of the oils offered on the market and have divided them into sections according to their chemical structure. After consulting the oil supplier, it is also possible to choose an oil which is not on the list since we do not claim its entirety. The type of oil used must be included in one of the categories deemed by GF as suitable. Also recommend that the oil selected is approved by the compressor manufacturer as well. For further information refer to PIPA POP002 Industry Guideline (POLYETHYLENE (PE) PIPES AND FITTINGS FOR COMPRESSED...