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 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.
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 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.
By making a collared T-junction, the need for a T-pipe is removed, thus reducing the number of soldered (copper) or welded (stainless steel) joints.
Collaring for soldering, insert pipe notched
A radius is cut out of the connecting pipe (notching) to avoid disturbing the flow in the junction. This method is suitable for both heating and tap water systems.
Collaring for fillet welding
The connecting pipe is inserted in the collared pipe but without notching. This method is suitable for installations in heating systems with no special hygiene requirements.
Collaring for butt welding
The connecting pipe is not inserted in the collared pipe but welded along the joint after it has been filed down. This method is suitable for installations in tap water systems, as these demand a high level of hygiene.
A: Minimum c/c distance between the bend and the collar is
86 mm.
B: Minimum distance between the collar and the fitting is
15 mm.
Collar´s dimension Ø | 8 | 10 | 12 | 15 | 18 | 22 | 28 | 35 | |
12 | 1.0 | 1.0 | 1.0 | ||||||
15 | 1.0 | 1.0 | 1.0 | ||||||
18 | 1.0 | 1.0 | 1.0 | ||||||
22 | 1.0 | 1.5 | 1.5 | 1.5 | |||||
Pipe dimension Ø | 28 | 1.0 | 1.2 | 1.2 | 1.5 | 1.5 | 1.5 | ||
35 | 1.0 | 1.5 | 1.5 | 1.5 | |||||
(mm) | 42 | 1.0 | 1.2 | 1.2 | 1.5 | 1.5 |
Collar´s dimension Ø | 10 | 12 | 15 | 18 | 22 | 28 | 35 | |
12 | 1.0 | 1.0 | ||||||
15 | 1.0 | 1.0 | 1.0 | |||||
18 | 1.0 | 1.0 | ||||||
22 | 1.0 | |||||||
Pipe dimension Ø | 28 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | |
35 | 1.0 | 1.0 | 1.0 | 1.0 | 1.5 | |||
(mm) | 42 | 1.0 | 1.2 | 1.2 | 1.2 |