The Poulton Technologies PT-1 connector is a weldless mechanical connector that has been designed to replace:
Both the flange and PT 1 are shown in the same scale
(4” NB, ANSI 2500lb).
This means the PT-1 will survive significant bending, vibration and tension, whilst maintaining an effective, pressurised seal.CATASTROPHIC FAILURE IS NOT POSSIBLE due to the mechanical strength of the PT 1; Where as a pair of flanges, when exposed to excessive external mechanical stresses can break apart.
The existing pressure classification is maintained, and no additional work is required, because the PT 1 is classed by Lloyd’s Register as a permanent connection with a 20-year life.
It is not a temporary repair. It does NOT suffer from fatigue degeneration.
2x 4” pipes welded to ANSI 2500lb weld-neck flanges would require over 20 hours work, which includes: weld preparation, pre-heating, positioning, welding, NDT, bolting, etc.
The same job with a PT 1 will take less than a couple of hours.
The tests required for Type Approval are both numerous and very tough and would not be passed by a traditional flanged connections.
It is protected by global patents.
With a flange joint, even the tiniest radial or axial misalignment can introduce stress into the pipeline, and cause installation problems.
Much cheaper to install, offering through-life costs much lower than a flanged connection.
No other connector offers equivalent performance in extreme conditions.