CIPP Technology – БауТекс

CIPP Technology

Технология CIPPCIPP technology (cured-in-place pipe) – in-place pipe rehabilitation.

The most efficient trenchless method used to repair an existing pipeline. It is used for pipe diameters of 200 – 1,600 mm. The most common in the world among trenchless technologies. It is used for repair of water supply pipes, sewage, gas, heat, petrochemical lines

Annually, 30,000 km of pipelines are repaired by the trenchless method in the world. The industry leader is the USA. In Germany, 1,500 km of pipes are repaired annually by a trenchless method .  CIPP (cured-in-place) has been used in the United States for the past 35 years.  In Europe – for 20 years. In Russia, the method has become widespread for the last 10 years.

  • The trenchless pipe rehabilitation method is carried out without damaging the surfaces of networks, roads, communications and structures, which minimizes the inconvenience of repair
  • The method allows repairing pipes lying in hard-to-reach places (under buildings, roads, etc.), being an alternative to more expensive and long-term pipe laying bypassing obstacles
    • Durability up to 100 years
    • Highest pipe corrosion resistance
    • Minimal loss of pipe diameter after repair is compensated by low friction, pipe throughput improves

Technological stages

1. The repair area is determined

2. The line site is being decommissioned for the duration of the work using plugs

3. A fluid pumping station is installed. The fluid is bypassing the cut-off area.

4. Hydrodynamic flushing of the pipe

5. Remote inspection and defect detection

6. Decision making about the repair method

7. A resin-impregnated sleeve of complex material is pulled into a damaged pipe through an access point (manhole)

8. Metal repair packers are installed

9. Calibration of the sleeve in the pipe under pressure

10. An ultraviolet emitter (a set of emmiters) is introduced into the pipe and a plug is placed again

11. The emitter passes along the entire length of the pipe, the curing process occurs

12. The packers are removed and the ends of the sleeve are trimmed

13. Joints are sealed

14. Re-inspection is carried out to verify the quality of work

15. Pneumatic plugs are removed, the fluid pumping station is removed and the section is put into operation

16. A video report with the results of the work is transmitted to the client

Standards

  • The initial conditions for testing a fiberglass sleeve, the time interval for determining long-term properties comply with the requirements of the standard – GOST R ISO 10467-2013
  • All materials, structures and equipment supplied for the performance of work comply with the requirements of GOST, TU and have the appropriate certificates, technical passports and other documents certifying their quality
  • The quality of work required complies with the applicable law, including:
    1. Urban Development Code of the Russian Federation
    2. SNiP 2.04.03-85 Sewerage. Outdoor networks and facilities
    3. SP 40-102-2000
    4. GOST R ISO 10467-2013
  • The initial conditions for testing a fiberglass sleeve, the time interval for determining long-term properties meet the requirements of the standards:
    1. GOST R ISO 10467-2013
    2. GOST R 55071-2012
    3. GOST 4648-2014
    4. GOST 32652-2014
    5. DIN EN ISO 1183-2
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