Protection caps protect bolts, nuts, and flange faces on
raised-face or full-face flanges in conditions where extreme
corrosion occurs, such as at gas plants, pump stations, and above-
and below- ground installations.it is a patented transparent
polymer band with grease injection fittings and a relief vent plug
that allows **0 degrees of continuous inspection. The flange
protectors are used for preventing corrosion from developing
between flanges on piping systems, and they enable visual
inspection of the flange surface without removing the flange
protector.
nutcaps.net
