Concept
Wearflex® Telescopic Seal are being applied in the chemical and petrochemical industry in catalytic tubes in reformers penetrate the roof. Tubes in certain reformers have a large expansion into the axial direction only. The penetration has to be sealed off in order that there will be no cold air ingress into the radiant section, as cold air ingress will lead to high energy costs.

Wearflex® Telescopic Seals are easy to install around each reformer tube at pigtail connection and on top of the steel roof. The installation of Insulcon’s Wearflex® Telescopic Seal takes only 5-10 minutes, using a screwdriver and stainless steel jubilee clips. The upper set of two half pipe sections (fixed around each tube) moves like a telescope over the lower set (fixed at the roof casing plate), forming a perfect seal while absorbing axial movements of more than 250 –350 mm.

Throughout the years Wearflex® Telescopic seals have been proven to save installation and reduce energy cost.
(a reference list is available upon request).