Our PEX Pipe Extrusion business area is an innovative manufacturer of high-quality plastic pipes for the heating and plumbing industry. Our core is the efficient, high-technology production process for crosslinked PE-Xa pipes, resulting in products with a unique combination of flexibility and hydrostatic strength.
LK Systems is the leading manufacturer of easy-to-install systems for heating and tap water distribution and pre-insulated pipes in the Nordics. Through our prefabrication factory, we also provide tailor-made solutions that simplify the installation process even further.
LK Armatur is a leading producer in Europe, manufactures millions of valves per year for the global HVAC market. Our solutions are based on a comprehensive view of how valves, control units, components and prefabricated products work together.
LK is a family-owned trading and production group, operating on a global scale within the HVAC-area. We are the market leader in Sweden and has an increasing sales of products, systems and solutions in the Nordic countries, Europe and the USA.
Having been used as a piping material for hot & cold applications since the early 70s, crosslinked polyethylene (PE-X) has a solid track record in various heating applications as well as in tap water systems. The crosslinking process into PE-X significantly increases the resistance to both heat deformation and hydrostatic pressure in the pipes, giving safety, reliability and long service life in the application. Quality testing of products in accordance with product standards EN ISO 15875 or DIN 16832 secures a design life of minimum 50 years.
LK pipes are of the PE-Xa type (crosslinking by peroxide) and are manufactured in a one-step process with extrusion followed by shortwave infrared-initiated crosslinking, and optionally extrusion of oxygen barrier layers for pipes intended for use in heating systems. The LK high-quality PE-Xa pipes are versatile products combining pressure strength with high flexibility and low weight (ease of installation).
Products are available in a range of dimensions from 8 to 110 mm, following EN ISO 15875 (e.g. SDR 7,4 and SDR 11) or ASTM F876/877 (SDR 9). Pipes are suitable for various heating applications as well as for domestic hot water use. Several third party certifications are available for PE-Xa pipe products.