Clamp

Details Clamp Clamp

B - Operations, Transporting

23

Q

189/14

B23Q 17/00 (2006.01) F16L 21/06 (2006.01) F16L 55/17 (2006.01)

Patent

CA 1288361

ABSTRACT OF THE INVENTION A clamp for forming a seal on a pipeline section, the clamp comprising a pair of complementary clamp members to be clamped together, each clamp member having an inner surface with a pair of axially spaced, circumferentially extending circumferential seals, and one clamp member having a pair of circumferentially spaced longitudinal seals which extend axially to bridge the gaps between the opposed circumferential ends of the pair of circumferen- tial seals to define four junction zones where the circum- ferential seals and the longitudinal seals abut, and retention means at each junction zone to connect the circumferential and longitudinal seals together in the retention zones, and at the same time connect the seals to the clamp member at the junction zones. The clamp in- cludes corner seals to provide back-up sealing for the junction zones. The clamp includes heat protection grooves to protect certain of the clamp seals. The clamp may include a pipe branch to provide a hot tapping facility. Embodiments of the clamp have an optimised body design to provide for weight minimization.

532003

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