- Name – CIPP "UV"
Rehabilitation method technology description
Uv-cured in place pipe liner (CIPP)
according to PN-EN 752-5; 13689; ISO 11296-1; ISO 11296-4.
1. Material
The components of the pipe liner are selected according to PN-EN 13566-4, Table 1.For UV-cured in place pipes polyester (UP) or vinylesther (VE) resins can be used. The carrier can be made of fiber glass or fiber glass combined with felt.
2. Equipment for installation of the pipe liner
- sewer cleaning equipment (pressure truck)
- remotely controlled pipeline inspection camera
- remotely controlled machine for milling inner surfaces of the pipeline
- UV curing assembly
- pulling machine (pipe puller)
- pipe liner calibration equipment
- by-passing unit (pumps, hoses)
- testing equipment
3. Preparation to installation
Assessment of the sewer’s technical condition
Before starting rehabilitation, the pipeline is cleaned using a hydrodynamic sewer cleaning unit mounted on a truck. Then the pipeline is inspected using a remotely controlled camera. The video footage is used for preparing a detailed digital report on the pipeline’s technical condition. The report is a base for classifying the sewer’s technical condition.
Choice of the rehabilitation method
The rehabilitation method depends on the technical condition class and damage degree. In order to select the right CIPP pipe, after the sewer’s technical condition is analyzed, other factors need to be considered: geodetic data, ground water level compared to the base of the pipeline, motor traffic in the area, and other parameters that impact the characteristics of the liner to be used. The designer calculates the thickness of CIPP liner using the Young modulus (E) characterizing the proposed carrier.
Saturation of the pipe liner
The pipe liner is saturated with resin in controlled environment, using vacuum.
Storage and transport to the site
Resin-saturated pipe liner is stored in dark rooms isolated from UV radiation. The liner is taken from the storage place to the site in containers or boxes ensuring optimal transport conditions.
4. Installation
After separation of the sewer section, a slip film is pulled inside the section.
When the old sewer surface is secured, a pulling machine is mounted over the upper manhole, a line is pulled to the lower manhole and the liner is attached to the line. The pipe liner is pulled in with controlled speed and pulling force.
To appropriately prepared end of the pipe liner a lock for mounting a set of lamp carriages and a pressure hose is installed. Compressed air is supplied, which calibrates positioning of the liner inside the rehabilitated sewer.
After the pipe liner calibration, a set of UV lamp carriages is introduced through the lock. The lamps emit UV rays of appropriate wavelength. The pipe liner is cured as the carriages with UV lamps on pass through the pipeline with speed adjusted to the dimensions of the rehabilitated sewer and the thickness of the liner. The process is continued until the liner is completely cured and is carried out according to internal instructions and procedures consistent with ISO 9001.
After installation, ends in extreme manholes are cut off using a milling machine and openings in “blank” connections of the cured pipe liner are cut out.
During the installation the following process parameters have to be recorded: pressure inside the pipe liner during all the stages of installation and curing and continuous readings of carriage speed and UV radiation wavelength.
5. Inspection
5.1. TV Inspection
After the installation and opening house drains, acceptance TV inspection (including VHS or CD recording) is carried out. Inspection report is also prepared.
5.2. Tests
According to PN-EN ISO 11296-1, 11296-4 and PN-EN 1610
6. Correction of flaws
Flaws are corrected using a robot controlled via a camera or / and inserting and gluing short pipe sections.
- Name – CIPP "water"
Rehabilitation method technology description
Hot water cured in place pipe liner (CIPP)
according to PN-EN 752-5; 13689; 13566-1; 13566-4.
1. Material
The components of the pipe liner are selected according to PN-EN 13566-4, Table 1. For hot water cured in place pipes (CIPP), polyester (UP), vinylesther (VE), or epoxy (EP) resins can be used. The carrier is usually polymer fabric (PA, PAN, PET, PP). Depending on the requirements of specific pipe liner manufactures, membranes can be added.
2. Equipment for installation of the pipe liner
- sewer cleaning equipment (pressure truck)
- remotely controlled pipeline inspection camera
- pipeline calibration device
- remotely controlled machine for milling inner surfaces of the pipeline
- heating unit (water boiler)
- inversion equipment (water tower or inversion drum)
- water column
- by-passing unit (pumps, hoses)
- equipment for putting the pipeline back to operation after the installation
- testing equipment
3. Preparation to installation
Assessment of the sewer’s technical condition
Before starting rehabilitation, the pipeline is cleaned using a hydrodynamic sewer cleaning unit mounted on a truck. Then the pipeline is inspected using a remotely controlled camera. The video footage is used for preparing a detailed digital report on the pipeline’s technical condition. The report is a base for classifying the sewer’s technical condition.
Choice of the rehabilitation method
The rehabilitation method depends on the technical condition class and damage degree. In order to select the right CIPP pipe, after the sewer’s technical condition is analyzed, other factors need to be considered: geodetic data, ground water level compared to the base of the pipeline, motor traffic in the area, and other parameters that impact the characteristics of the liner to be used. The designer calculates the thickness of CIPP liner using the Young modulus (E) characterizing the proposed carrier.
Saturation of the pipe liner
Przewód rurowy jest nasączany żywicą w kontrolowanych warunkach z zastosowaniem podciśnienia.
Transport to the site
Resin-saturated pipe liner is delivered to the site in containers or boxes ensuring temperature conditions optimal for the used resin. In case of liners saturated with epoxy resin (EP), there is no need to transport it from the saturation site because the saturation equipment is in direct vicinity of the site.
4. Installation
After separation of the sewer section, a protective sleeve (preliner) is pulled inside the section.
When the surface of the old sewer is secured, a water column or inversion drum is mounted over the place where the pipe liner will be introduced. The pipe liner is introduced using water inversion method.
Then a heating unit is turned on. It heats water (in closed circuit) inside the pipe liner to the curing temperature.
After installation, ends in extreme manholes are cut off using a milling machine and openings in “blank” connections of the cured pipe liner are cut out.
During the installation the following process parameters have to be recorded: pressure of the fluid fed to the pipe liner during all the installation and curing stages and continuous temperature readings from all the control points during the curing process.
5. Inspection
5.1. TV Inspection
After the installation and opening house drains, acceptance TV inspection (including VHS or CD recording) is carried out. Inspection report is also prepared.
5.2. Tests
According to PN-EN 13566-1, 13566-4 and PN-EN 1610
6. Correction of flaws
Flaws are corrected using a robot controlled via a camera or / and inserting and gluing short pipe sections.
- Name – CIPP "steam"
Technical description of a rehabilitation method
Steam-cured in place pipe liner (CIPP)
according to PN-EN 752-5; 13689; 13566-1; 13566-4.
1. Material
The components of the pipe liner are selected according to PN-EN 13566-4, Table 1. For steam-cured in place pipes polyester (UP) or vinylesther (VE) resins can be used. The carrier can be made of polymer fabric (PA, PAN, PET, PP) or, more often, ECR glass fiber. Combinations of the materials can be used as well. Depending on the requirements of specific pipe liner manufactures, membranes can be added.
2. Equipment for installation of the pipe liner
- sewer cleaning equipment (pressure truck)
- remotely controlled pipeline inspection camera
- pipeline calibration device
- remotely controlled machine for milling inner surfaces of the pipeline
- steam generator
- pulling machine (pipe puller)
- by-passing unit (pumps, hoses)
- testing equipment
3. Preparation to installation
Assessment of the sewer’s technical condition
Before starting rehabilitation, the pipeline is cleaned using a hydrodynamic sewer cleaning unit mounted on a truck. Then the pipeline is inspected using a remotely controlled camera. The video footage is used for preparing a detailed digital report on the pipeline’s technical condition. The report is a base for classifying the sewer’s technical condition.
Choice of the rehabilitation method
The rehabilitation method depends on the technical condition class and damage degree. In order to select the right CIPP pipe, after the sewer’s technical condition is analyzed, other factors need to be considered: geodetic data, ground water level compared to the base of the pipeline, motor traffic in the area, and other parameters that impact the characteristics of the liner to be used. The designer calculates the thickness of CIPP liner using the Young modulus (E) characterizing the proposed carrier.
Saturation of the pipe liner
The pipe liner is saturated with resin in controlled environment, using vacuum.
Storage and transport to the site
The saturated pipe liner is stored in refrigeration chambers ensuring optimal temperature conditions. The liner is taken from the storage place to the site in containers or boxes ensuring temperature conditions optimal to give resin.
4. Installation
After separation of the sewer section, a slip film is pulled inside the section.
When the old sewer surface is secured, a pulling machine is mounted over the upper manhole, a line is pulled to the lower manhole and the liner is attached to the line. The pipe liner is pulled in with controlled speed and pulling force.
To appropriately prepared end of the pipe liner a steam hose is connected and compressed air is supplied. The purpose is to calibrate positioning of the liner inside the rehabilitated sewer. After the pipe liner calibration steam is fed inside the liner. The steam's parameters (pressure and temperature) are adjusted to the liner material. The process is continued until the liner is cured and is carried out according to internal instructions and procedures consistent with ISO 9001.
After installation, ends in extreme manholes are cut off using a milling machine and openings in “blank” connections of the cured pipe liner are cut out.
During the installation the following process parameters have to be recorded: pressure in the pipe liner during all the installation and curing stages and continuous temperature and time readings from all the control points during the curing process.
5. Inspection
5.1. TV Inspection
After the installation and opening house drains, acceptance TV inspection (including VHS or CD recording) is carried out. Inspection report is also prepared.
5.2. Tests
According to PN-EN 13566-1, 13566-4 and PN-EN 1610
6. Correction of flaws
Flaws are corrected using a robot controlled via a camera or / and inserting and gluing short pipe sections.
- Name – Process Phoenix
Rehabilitation method technology description
Steam-cured in place pipe liner (CIPP)
according to PN-EN 752-5; 13689; 13566-1; 13566-4.
1. Material
The basic element of the „Process Phoenix” set is a flexible, seamed sleeve made of woven fabric coated with polyethylene on one side. After the rehabilitation the polyethylene coat is the pipeline’s inner, smooth surface. The sleeve is saturated with epoxy resin.
The material used for high-grade TUBETEX products is HD polyester. Its key attributes include excellent mechanical properties (high tensile strength, reduced creep, stable mechanical properties), excellent thermal stability (150?) and superb abrasion resistance.
2. Equipment for installation of the pipe liner
- pipeline cleaning machine with a water heating unit
- remotely controlled inspection camera
- remotely controlled machine for milling inner surfaces of the pipeline
- liner inversion and curing set (inversion drum)
- by-passing unit (pumps, hoses)
- testing equipment
3. Preparation to installation
Assessment of the sewer’s technical condition
Before starting rehabilitation, the pipeline is cleaned using a hydrodynamic cleaning unit mounted on a truck. A unique combination of a high pressure pump (1200 bar) with water heating ensure complete cleaning of the pipeline (steel, cast iron) of all the sediments and buildups as well as its degreasing and drying. Then the pipeline is inspected using a remotely controlled camera. The video footage is used for preparing a detailed digital report on the pipeline’s technical condition.
Saturation of the pipe liner
The pipe liner is saturated with epoxy resin at the site and, after passing thorough calibration rollers, is ready for installation.
4. Installation
The pipeline rehabilitation method consists in lining it with a sleeve, saturated with epoxy resin, which adjusts to the shape of the rehabilitated pipeline. The liner, after curing, covers cracks and seals the pipeline and functions as a replacement pipeline. It also prevents infiltration and exfiltration.
The liner is introduced into the rehabilitated pipeline using inversion method, which prevents damage during installation. For that purpose an inversion drum is used. When the liner is in place, compressed air and steam are fed inside it (through special connections). They polymerize the resin and cure the liner. The resin-saturated fabric abuts against walls of the rehabilitated pipeline.
After the curing, control tests are carried out. They consist in inspecting the inner surface of the liner using a camera and leak proof tests. Afterwards, the pipeline is ready for operation.
5. Inspection
5.1. TV Inspection
After the installation and opening connections, acceptance TV inspection (including VHS or CD recording) is carried out. Inspection report is also prepared.
5.2. Tests
According to PN-EN 13566-1, 13566-4.
6. Correction of flaws
Flaws are corrected using a robot controlled via a camera or / and inserting and gluing special correction sets.
