Liquefied Petroleum Gas Transfer Compressors come in ductile iron construction and oil free design. These Gas Transfer Compressors are primarily used to transfer liquid LPG through vapour displacement and for vapour recovery from LPG tanks. These Gas Transfer Compressors are only exposed to vapours and thus not affected by poor NPSH conditions. These Liquefied Petroleum Gas Transfer Compressors have self-lubricating Teflon step-cut piston rings.