How to fix a cracked pipe without digging #shorts
A repair packer presses a resin-and-fiberglass patch onto a cracked pipe and holds it while the patch cures.
Application Overview
This is an excerpt from the full explainer. The 2 bar inflation and about 40 minutes of summer curing are the video's example; curing time depends on the resin and site temperature.
English transcript
Based on YouTube's automatic captions, with sound tags removed and obvious transcription errors corrected. Refer to the video and product documentation for technical details.
A cracked sewer under a busy road. The usual fix is to dig it up. The wet patch is wrapped around a repair packer and the packer is pulled through the pipe to the crack. Then the packer is inflated. It presses the patch against the wall all the way round, squeezing out trapped air. The leak stops and the packer holds the patch in place. Why press so hard? Pressure is force spread over area. A repair packer for a 300 mm pipe inflates to two bar. Two bar is 20 newtons on every square centimeter of patch. That's 200,000 newtons on each square meter. About 20 tons pushing the patch onto the wall. Now the resin cures while the packer holds the patch against the wall. In summer, that takes about 40 minutes. Then the packer is deflated and pulled out. The cured patch stays on the wall, sealing the crack from inside. Watch the full explainer on our channel.
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.
