Skid pipe covering

An insulating jacket enclosing a water-cooled pipe, said jacket comprising arcuate segments of pre-cast insulating material formed to include an aperture extending radially therethrough, an elongate metallic band held concentrically adjacent said pipe, an elongate projection having the inner end thereof attached to said metallic band and the outer end thereof adapted to extend radially outward through an aperture in a segment of said jacket, and means clasping the outer end of said projection to anchor the arcuate segments of insulating material between ends thereof whereby said jacket is held firmly to said pipe.