| CIP liners for mains |
 |
|
|
| Pipe materials | cast iron, steel, asbestos, and PVC |
| Diameter | 3" - 24" |
| Length | up to1,000 ft. per line |
| Operating pressure | high pressure (up to 90 psi) |
| Drip pots | can be lined, with proper preparation |
| Offsets | 45° offsets can be lined |
| Line condition | partially
deteriorated gas pipes, e. g. holes or gaps up to 4" |
| Tees | are opened without excavation trenchless with a robotic cutter equipped with a CCTV camera |
| Adhesive system | PU adhesive or epoxy resin |
| Curing | cold or warm |
| Performance | 1 lining section having been lined by one rehabilitation crew (4 workers) can be put back into operation within 12 - 16 hours |
| Excavation | only one small starting and target pit required per section |
| Special features of the technology: | maintains
gas-tightness even if the pipe breaks, misalignment of 7° and more
possible uniform bonding, i. e. no gas migration new service tees can be installed using the utility's standard procedure no significant reduction in pipe capacity |
