Safety on board with ammonia as the refrigerant. The ship classification society DNV GL (Det Norske Veritas, Germanischer Lloyd) now also certifies the BITZER screw compressors in the OS.A95 series. Models OSKA9593-K and OSKA95103-K are available, which amongst other features boast large displacement flow rates of up to 1,015 m3/h, with an integrated IQ Modul and infinite capacity control. Apart from a variety of reciprocating compressors, open and semi-hermetic screw compressors, with this, BITZER now also has the largest and newest series of screw compressors with the DNV GL certificate.