Trenchless pipe repair: re-round a deformed sewer first
A squashed sewer pipe takes no repair sleeve: the ring has to land on the wall all the way round. The point-repair jack presses the crown back up first.
Application Overview
The HJP 150-300 figures (130 mm initial height, 80 mm lift, 310–320 mm maximum) and the 20 MPa working pressure refer to the published models. Confirm the pipe material and condition before choosing a jack.
English transcript
From the subtitle track delivered with the video. Refer to the video and product documentation for technical details.
A point-repair jack goes in before the repair, not instead of it. A DN300 sewer pressed down to 130 millimetres opens back to 310. Then the sleeve lands on a round wall, all the way round. It works inside the pipe, from the manhole. Two configurations: up-down to DN600, duck-billed DHJ 300 to 500.
Resources
Product videos
Explainer videos and short demonstrations from Reliance’s official YouTube channels. Browse every published video by topic and follow each one to its reviewed watch page or official YouTube source.
