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LK Group

LK Group

  • LK Armatur

    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. Svenska English Deutsch Italiano Yкраїнська Suomi

  • LK Systems

    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. Svenska English Norsk Suomi

  • LK Pex

    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. English

  • LK Group

    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. Svenska English

Discover our flanging expertise

Flanging is an efficient and relatively simple method for creating sealing joints on a pipe. By flanging the end of the pipe, a secure seal can be performed using a washer and nut.
Copper pipe with dubbel flanging

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Steel pipe with flange

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Header table 1

Straight pipe with flange for one nut.

Straight pipe with flanges for two nuts

Bent pipe drawing

Bent pipe with flange.

Header table 2
   

Straight pipe
with flange 
for one nut

Straight pipe
with flanges
for two nuts

Bent
pipe with
flange

  

Pipe dimension
(mm)		 A
Flange dimension   for nuts

B
Min. length for flanging
(mm)

B
Min. length for flanging
(mm)

B
Min. length for flanging (mm)

R
Bending radius    (mm)
12 ½" 20 45 48 21.6
15 ½" 20 45 50 22.5
15 ¾" 20 55 56 30
18 ¾" 20 55 53 27
18 1" 20 55 53 27
22 ¾" 20 42 53 33
22 ¾" 20 42 60 40
22 1" 20 42 53 33
22 1" 20 42 60 40
22 1¼" 20 110 53 33
22 1¼" 20 110 60 40
28 1" 30 110 75 55
28 1¼" 30 110 75 55
28 1½" 30 110 75 55
35 1½" 30 110 93 52.5
42 2" 40 110 100 60