You should have at least the following equipment, components, and facilities available to carry out the rehabilitation works:

• pipeline cleaning equipment
• pipeline inspection equipment
• possibly robotic equipment

(Image: Suction / flushing vehicle with water recovery) (Image: CCTV inspection camera with attached pull cable) (Image: Milling robot for opening the lateral connections 6)

Vehicle equipment and components for UV curing:

• lining tube of the nominal diameter required for the project
• light source (light source chain/light source core)
• temperature measuring sensors
• UV replacement lamps
• sling and swivel
• shut-off elements
• packer with compressed air connections
• air compressor and/or blower
• compressed air hoses
• cable winch with mechanism for controlling the pull-in forces and speed
• tool and equipment room (if required)

Carefully work through the following points:

• Check the planning data and details on the specifications.
• Measuring
  • Determine the length to order. Take any accuracy tolerances of your measuring instrument into consideration.
  • Determine the internal diameter: determine it at least at four positions on both ends of the pipe and calculate the mean value.

(Image: Determining the length to order) (Image: Determining the internal diameter of the circular …

Carefully work through the following points:

• Do not take measurements at socket ends. Taking measurements at the socket end can lead to incorrect values.
• If deviations from the circular profile or the egg-shaped profile occur, determine the exact internal circumference of the pipeline, e.g., using a measuring tape (see Special Profiles too).
• For analysis purposes, carry out a laser-assisted deformation measurement over the entire length of the …

Before installing the lining tube, precisely measure the lateral connections that are to be opened up. Use the same measuring equipment before and after installing the lining tube. When measuring from the start of the pipe, note any protrusion of the CIPP liner after installation.

(Image: Measuring the lateral connections in accordance with schema A ) (Image: Measuring the lateral connections in accordance with schema B)

The sewer to be renovated - at least one section - must be taken completely out of service during the entire period of installation. Incoming wastewater must be retained without damage during this time and diverted or transferred. The discharge control measures essentially relate to the main sewers. When shutting off and pumping over the house connection pipes, the contractor shall ensure that no impairment occurs due to backwater in the cellars …

Use deflection pulleys in the start and target manholes to aid installation. Position the deflection pulleys such that the lining tube, ropes, and cables are protected at all times. Secure the deflection pulleys against the forces acting on them, e.g. using screw jacks.

(Image: Rope and deflection pulley ) (Image: Manhole deflection pulley for chain of lights) (Image: Deflection pulley for manhole channel with screw jacks (spindles) for securing ) (…

Before the pull-in of the lining tube, pull in a gliding foil and fix it.

(Image: Preparation of the gliding foil for the pull-in) (Image: Raised and prepared gliding foil) (Image: Pulling in the gliding foil) (Image: View into the manhole during the pulling in of the gliding foil) (Image: Fixation of the gliding foil )

(Video: Pulling in and fastening the gliding foil )

(Video: Pulling in the gliding foil from manhole to manhole)

Fold the lining tube lengthwise and then crosswise. Attach a winch cable fitted with a sling and swivel. Select the swivel in accordance with the pulling-in force and liner weight.

Select the swivel in accordance with the pulling-in force and liner weight.

(Image: Folded lining tube with sling and swivel ) (Image: Folding the lining tube head and assembling the sling and the swivel 2) (Image: Folding the lining tube head and assembling the sling and …