The Swivel Expansion Joint from Storm Plastics is a flexible sewer/PVC “knuckle” joint capable of rotating + or – 15º from its axis, including 50mm – longitudinal – telescopic expansion.
It allows stress free junction performance, while simultaneously providing a flexibility, at normally fixed branch positions, thus compensating for soil movement in reactive soils.
The Swivel movement is protected by a black plastic DUST membrane, preventing loose or muddy soil from entering the sealing ‘O’ rings for the products life.
The Swivel joint will alleviate breakage of pipe junctions at foundation, inlet and outlet level on all tank systems.
These joints can be used in above and underground Sewer and Storm water pipe systems and are available in 100 mm, 150 mm and 225 mm pipe sizes.