| CIP liners for high-pressure pipelines |
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| Pipe materials | Steel |
| Diameter | HPL-450
(Type 1 liner): 10" - 24" (> 24" upon request for
large projects only) HPL-180 (Type 2 liner): 6" .-24" (> 24" upon request for large projects only) |
| Length | up to2,000 ft. per line depending on installation equipment and pipe diameter |
| Operating pressure | high
pressure up to 250 psi for type 1 liner (HPL-450) high pressure up to 180 psi for type 2 liner (HPL-180) |
| Prerequisites | Launch
and target pit Determine condition of pipe, remove any barriers Statics of pipe body for planned service life Pipe cleaned and dried Fill voids for operating pressures above 100 psig |
| Offsets | Can be lined depending on size, radius and deflection. |
| Line condition | partially deteriorated gas pipes, e. g. holes up to 2" or gaps up to 1" |
| Tees | are opened without excavation trenchless with a robotic cutter equipped with a CCTV camera |
| Adhesive system | epoxy resin with very long pot life |
| Curing | Ambient - no additional equipment required |
| Excavation | only one small starting and target pit required per section. An additional small cleaning pit is only needed for section lengths exceeding 1000 ft. |
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| Benefits of the technology: |
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