Chemically active gases at times must be compressed. These active gases include oxygen, chlorine, hydrogen chloride, sulfur dioxide and hydrogen sulfide. Petroleum based oils should not be used to lubricate active gas compressors.
In cylinder lubrication operating temperature is a major consideration. Since oil viscosity is reduced at high temperature, _______________ viscosity oils are required to maintain an adequate lubricant film.
Oil is fed to cylinders for lubrication by site feeders and feed rates are typically measured in: