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100,000th SAERTEX-LINER successfully installed


Saerbeck and Valladolid, February 2023 - SAERTEX multiCom announces the successful completion of a very special trenchless rehabilitation project. The 100,000th pipe liner from SAERTEX multiCom was successfully installed in the major Spanish city of Valladolid. The installation was carried out by the Spanish installation company STLIMA on behalf of the local network operator AQUAVALL as part of a major project that included 49 kilometers of sewer rehabilitation.

By the end of 2022, SAERTEX multiCom GmbH, based in Saerbeck (Germany), has already successfully delivered and installed the 100,000th pipe liner in the company's history in cooperation with the Spanish sewer rehabilitation specialist STLIMA. Since its founding in 1996, the family-owned company has been producing glass-fiber-reinforced (GRP) pipe liners for the trenchless rehabilitation of sewers and portable water pipes.

"We are particularly pleased with the successful installation of this anniversary liner," says Kai Diecks, Global Managing Director at SAERTEX multiCom. "Because even though this SAERTEX-LINER was tailor-made for the project in Valladolid, over the past 27 years we have managed to make trenchless rehabilitation already state of the art in many countries around the world – and thus part of everyday life in many rehabilitation projects."

100.000er LINER

The company's 100,000th GRP pipe liner, which was installed in downtown Valladolid, was used to rehabilitate a dilapidated section of sewer with an egg-shaped profile. The SAERTEX-LINER used had a diameter of 1200x800 mm and a length of 98 meters. It is part of a comprehensive rehabilitation project of the Valladolid sewer network of the local network operator Aquavall. Since the start of construction work in 2019, 49 kilometers of the dilapidated wastewater and stormwater pipes in the urban area of the major city in northern Spain have already been rehabilitated using the trenchless method.

"The advantages of light-curing pipe lining are that it can be done quickly," says Dr. David Greciano, site manager at STLIMA. "The rehabilitation of a dilapidated section of sewer, such as here with the 100,000th liner from SAERTEX multiCom, is usually completed within a day. That's why we're moving ahead quickly with the project – without causing any major disruption to the daily lives of local residents." rehabilitation with pipe liners is carried out using the existing manhole systems of the sewer system. A liner made of glass fiber reinforcements pre-impregnated with resin is pulled into the host pipe, set up with compressed air and cured by means of a UV light chain. By eliminating earthwork and tree felling, trenchless rehabilitation reduces the environmental impacts of other methods, such as noise, dust and traffic disruption. The technical service life of a pipeline rehabilitated with glass-fiber-reinforced pipe liners is designed for 50 years.

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