308 Series


308 Series

These electrofusion entry seals weld directly to the walls of polyethylene chambers or sumps. They have been specifically designed to reduce the number of fittings necessary to provide water tight seals between the underground tank sump/chamber and the UPP primary or secondary contained pipe and electrical conduit or duct. The nature of the seal means that after installation it becomes one with the sump, with zero leak paths, creating a 100% leak tight system. The seals are polyethylene based allowing electrofusion of UPP pipework systems directly to the penetration, negating the need for mechanical boots and creating a homogeneous structure of the sump, boot and pipe. The spigot on both sides of the 308 allow a second boot to be fitted to the outside as a gravel guard.

The seal is fully vacuum and pressure testable ensuring 100% leak free seals and sumps.

  • Large diameter access.
  • For use with 50mm (1½"), 63mm (2"), 75mm (SC), 90mm (3"), 110mm (4") and 160mm (6") pipe.

UPP EN14125:2013 Standard Primary Pipe

Model Number Description
308 UPP® 8" Fusion Seal for 90/110/160 mm
  • If this is to be used for 160 mm then you will also need to order our part SS8 - Jubilee clip for 160 mm
Model Number Description
308-R UPP 8" Fusion Ring
Model Number Description
308-SB UPP® Seal Boot Kit for 90/110/160 mm
Model Number Description
308-075 UPP® 8" Fusion Seal with Rubber Boot for 75/63/50 mm
  • If this is to be used for 75mm then you will also need to order our part SS4 - Jubilee clip for 75mm
Model Number Description
308-075-SB UPP® 8" Seal Boot Kit for 75/63/50 mm


Title Type Size
CD_PC_308_001.pdf PDF 0.13 MB
CD_PC_308_001.dwg DWG 0.42 MB