Installing pre-fabricated segments is a technically effective, quick and economical way of insulating pipe elbows. Installing an insulation elbow or bend costs, and its dimensional accuracy improves quality, and reduce unnecessary heat loss. The insulation properties of a pipe elbow insulated with PAROC segments are comparable to pipe sections. The difference to a traditional on-site wired mat installation can be significant.   The advantage is due to the dimensional accuracy of the prefabricated PAROC segments and sections;  there is no need to measure or fabricate the external cladding on-site, they need no reinforcements, and the seams fit tightly. Installing the cladding is easy, thus making a good result even more likely.
The segmented bends are attached to a pipe elbow using Paroc recommendation with a wire or steel bandage, taking into account the special requirements set by the operating temperature or other fixing requirements of the site.   On the segmented bends, the central line following the curvature of the pipe elbow has been marked to facilitate installation. The cutting surfaces of the segmented bends at the ends of the elbow will be perpendicular to the central line of the straight pipe.   1. Installation begins by placing the PAROC-lock section on the straight pipe towards the welding joint, male part overlapped. Place the segment on the elbow so that the end of the section and the cut surface of the installation part meet. Place the mark in the segment so that it is aligned with the central line of the pipe when seen from the side of the pipe elbow.   2. Next, place the required number of segments on the pipe elbow so that the central line markings are aligned. Attach the segments with a wire or steel band, for example, with one steel band per segment in the middle. This ensures good binding of the segment, and the bindings shape the back of the pipe elbow in such a manner that installation of cladding becomes easier.   3. In two-layer insulation, attach both layers separately by overlapping the seams by approx. 50 mm. Apply the inner layer using one binding (as in section 4) and the outer layer with a minimum of two bindings per one part approximately 50 mm from the ends of the insulation part.   4. Pipe elbows with a different radius of curvature, not included in this selection guide, can be insulated with segments in accordance with the drawings, by rotating them along the axis of the pipe elbow and aligning the central line markings at equally spaced steps. The step dimension (angle of rotation) is best achieved by experimenting: when insulation parts are rotated 180o with respect to each other (i.e. so that the marks are at opposite sides) they form a straight pipe section.     We would be happy to give you a practical demonstration of this system.