Intro4u2u

A lubricator or lubricator/isolating valve is required for semi-metallic packing and is recommended for graphite asbestos and TFE-impregnated asbestos packing. The lubricator or lubricator/isolating valve combination should be installed on the side of the valve bonnet, replacing the pipe plug used with packing types not requiring lubrication. Use Dow Corning X-2 lubricant or equivalent for standard service up to 450°F(232°C) and Hooker chemical Corporation Fluorolube Lubricant or equivalent for chemical service up to 300°F (149°C). With lubricator, isolating valve, and pipe nipple (if used) completely filled with lubricant and installed on bonnet, open isolating valve (if used) and rotate lubricator bolt a full turn clockwise to force lubricant into the packing box. Close the isolating valve after each lubrication.