TRU-REHABILITATION1 L&M is designed for effective rehabilitation of drinking water mains in low pressure systems. The liner is drinking water approved and is designed to have a lifespan of more than 50 years, under conditions of normally used water treatment disinfectants.

With TRU-REHABILITATION1 L we offer a more sustainable solution for the rehabilitation of old pipelines with minimal disruption to traffic, pedestrians, and the environment in general, with an improved CO2 footprint and HSE performance. The liner is tested and approved for use with potable water, and it is flexible in terms of the diameter variation of the original pipe, effortlessly passing bends even at long section lengths.

TRU-REHABILITATION1 L

TRU-REHABILITATION1 M

Product Specifications

Primary Uses & Applications

· Safe trenchless rehabilitation of drinking water lines

Color Options

· Blue (standard)

Lengths and Diameters

TRU-Rehabilitation L
We offer a range of diameters and lengths for this liner, depending on the nominal pipe diameter. The diameters range from DN25mm to DN350mm.

· DN25-DN150 can be delivered in lengths up to 600m

· DN200-DN350 can be delivered in lengths up to 400m

TRU-Rehabilitation M
We offer a range of diameters and lengths for this liner, depending on the nominal pipe diameter. The diameters range from DN150mm to DN350mm.

· DN150-DN350 can be delivered in lengths up to 400m

Section lengths will depend on

· Number of bends: More bend => Higher friction => Higher pull-force.

· Bend angle and R/D ratio: Sharp bends (critical low R/D ratio) => Higher friction and greater risk of damage to the hose during Pull-in. Can be dampened with good lubrication (silicone oil/cooking oil etc.) on the hose. Increased risk of “kinking” of the hose within the bend and reduced flow.

Operating Temperature

    The maximum recommended operating temperature is +23°C (73°F)

Lifetime Expectancy

    Service Lifetime will depend on several important factors such as proper and correct installation, condition of the existing pipe, dosage of and type of disinfectants used.

Chemicals and pH Range

    The drinking water is normally stabilized as to chemical reactivity and microorganisms contents. The recommended pH range is 4-9.

Product Description and Features

TRU-REHABILITATION1 L is a semi-structural, stand-alone liner which will absorb all internal pressure while in operation. The liner is manufactured using a thermoplastic polyether-based polyurethane (TPU) with excellent wear & tear properties, outstanding hydrolysis resistance and resistance against microbiological attack. The “extrusion through the weave”production technology gives excellent bonding between cover and lining as well as firmly encapsulating the circular woven polyester reinforcement. TRU-REHABILITATION1 L supplies the liner leak-proof tested, and tape wrapped in a “U”-shape. Prior to installation a regular cleaning procedure is required of the host pipe and condition controlled by CCTV inspection.

The liner is pulled through the host pipe by using a winch and can be installed in pipes having bends up to 45° (R/D ≥5). No steaming is needed to cure the liner, only a small amount of pressure is required to break the tape. Thereafter the liner is re-coupled and connected again to the existing infrastructure and the system is ready to be put back into operation. Max. recommended operational temperature is +23° (+73°F) at a pH range 4-9. Service lifetime will depend on several important factors such as proper and correct installation, condition of the existing pipe, dosage of and type of disinfectants used. Accelerated aging tests performed at a chlorine dosage up to 4ppm indicate a service lifetime of more than 50 years.