Description
Copeland by Vilter 2939B Vilter 717 Refrigeration Oil is a premium-grade ammonia compressor lubricant formulated for use in industrial refrigeration systems, including reciprocating and rotary screw compressors. Developed with severely hydrocracked, isodewaxed base oils and advanced additives, this oil delivers exceptional thermal, oxidative, and hydrolytic stability, enabling extended drain intervals and reliable performance in extreme temperature conditions. Its low pour point and stable viscosity ensure efficient lubrication, while its low-foaming characteristics make it ideal for aggressive ammonia environments. Packaged in a 55-gallon drum, the 2939B is a trusted solution for maintaining compressor efficiency and protecting system components in demanding applications.