Repairs can be done with a sheath-type repair jig with a complete sealing ring, but this repair method is different from flange or weld repairs and is not a permanent repair. This type of repair is generally suitable for buried applications, because the compacted soil will limit the thermal expansion movement of the pipe and the tension caused by the internal pressure. Generally speaking, the longer the repair fixture, the better the sealing effect of the thermoplastic pipe. Recommended The minimum clamp length is 1.25-2 times the nominal outer diameter of the pipe. When the pipe is wiped clean and all foreign objects are removed, the clamp should be evenly clamped. After the fixture is installed, backfill and compaction should be completed before water pressurization.
