Casing End Seal Type FW

PSI casing end seals type FW were specially developed to provide a pressure-tight seal between carrier pipes and casing pipes.

The casing seal is made of high-quality Rottolin and, thanks to its 9-11 mm thickness, it is particulary dimensionally stable and pressure-tight up to 0.5 bar. As a result of it´s exceptional flexibility, the casing seals allow axial and radial movements between the casing and carrier pipe.

To ensure tightness, the annular space should be no larger than 70 mm. A Special, permanently elastic  adhesive sealant  is sprayed from a cartridge on to the underside of the collar of the sealing sleeve, which is then secured over the casing and carrier pipe with two stainless steel fastening straps. Before backfilling, the casing end seal needs to be covered with foam pads.