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Flanges

43 items in the catalogue

Product Pipe diameter PN Bolt holes Grade Availability Price Action
Stainless steel forged weld neck flange 4" SCH40S CLASS150 1.4301 / 1.4307 / 304 / 304L S-KNSZ/04.00/SCH40S/CLASS150/1.4307 4 inches CLASS150 8 1.4301, 1.4307… in stock 73,60 € (59,84 € excl. VAT) Add to basket
Stainless steel forged blind flange DN80 88,9mm EN1092-1/05B (PN10/16) 1.4401 / 1.4404 / 316 / 316L S-KNZ/088.90/1.4404 DN80 / 88.90mm PN10, PN16 8 1.4401, 1.4404… in stock 61,31 € (49,85 € excl. VAT) Add to basket
Stainless steel forged weld neck flange DN80 88,9mm EN1092-1/11B1 (PN10/16) 1.4401 / 1.4404 / 316 / 316L S-KNSZ/088.90/1.4404/PN16 DN80 / 88.90mm PN10, PN16 8 1.4401, 1.4404… in stock 51,60 € (41,95 € excl. VAT) Add to basket
Stainless steel forged weld neck flange DN80 88,9mm EN1092-1/11B1 (PN10/16) 1.4571 / 316Ti S-KNSZ/088.90/1.4571 DN80 / 88.90mm PN10, PN16 8 1.4571, 316Ti in stock 57,64 € (46,86 € excl. VAT) Add to basket
Stainless steel forged weld neck flange DN80 88,9mm EN1092-1/11B1 (PN10/16/25/40) 1.4401 / 316 / 1.4404 / 316L S-KNSZ/088.90/1.4404 DN80 / 88.90mm PN25, PN10, PN16, PN40 8 1.4401, 1.4404… in stock 60,18 € (48,93 € excl. VAT) Add to basket
Stainless steel forged flat flange DN100 114,3mm EN1092-1/01B (PN10/16) 1.4571 / 316Ti S-KNP/114.30/1.4571 DN100 / 114.30mm PN10, PN16 8 1.4571, 316Ti in stock 54,04 € (43,93 € excl. VAT) Add to basket
Stainless steel forged weld neck flange DN100 114,3mm EN1092-1/11B1 (PN10/16) 1.4541 / 321 S-KNSZ/114.30/1.4541/PN16 DN100 / 114.30mm PN10, PN16 8 1.4541, 321 in stock 53,09 € (43,16 € excl. VAT) Add to basket
Stainless steel forged weld neck flange DN100 114,3mm EN1092-1/11B1 (PN10/16) 1.4571 / 316Ti S-KNSZ/114.30/1.4571 DN100 / 114.30mm PN10, PN16 8 1.4571, 316Ti in stock 71,16 € (57,85 € excl. VAT) Add to basket
Stainless steel forged weld neck flange DN100 114,3mm EN1092-1/11B1 (PN10/16/25/40) 1.4541 / 321 S-KNSZ/114.30/1.4541 DN100 / 114.30mm PN25, PN10, PN16, PN40 8 1.4541, 321 in stock 68,56 € (55,74 € excl. VAT) Add to basket
Stainless steel forged blind flange DN125 139,7mm EN1092-1/05A (PN10/16) 1.4541 / 321 S-KNZ/139.70/1.4541 DN125 / 139.70mm PN10, PN16 8 1.4541, 321 in stock 93,39 € (75,93 € excl. VAT) Add to basket
Stainless steel forged flat flange DN125 139,7mm EN1092-1/01B (PN10/16) 1.4301 / 1.4307 / 304 / 304L S-KNP/139.70/1.4307B DN125 / 139.70mm PN10, PN16 8 1.4301, 1.4307… in stock 50,21 € (40,82 € excl. VAT) Add to basket
Stainless steel forged flat flange DN125 139,7mm EN1092-1/01B (PN10/16) 1.4401 / 316 / 1.4404 / 316L S-KNP/139.70/1.4404 DN125 / 139.70mm PN10, PN16 8 1.4401, 1.4404… in stock 68,49 € (55,68 € excl. VAT) Add to basket
Stainless steel forged flat flange DN125 139,7mm EN1092-1/01B (PN10/16) 1.4541 / 321 S-KNP/139.70/1.4541B DN125 / 139.70mm PN10, PN16 8 1.4541, 321 in stock 54,21 € (44,07 € excl. VAT) Add to basket
Stainless steel forged loose flange DN125 139,7mm EN1092-1/02A (PN10/16) 1.4301 / 1.4307 / 304 / 304L S-KNL/139.70/1.4307 DN125 / 139.70mm PN10, PN16 8 1.4301, 1.4307… in stock 51,69 € (42,02 € excl. VAT) Add to basket
Stainless steel forged weld neck flange DN125 139,7mm EN1092-1/11B1 (PN10/16) 1.4401 / 316 / 1.4404 / 316L S-KNSZ/139.70/1.4404 DN125 / 139.70mm PN10, PN16 8 1.4401, 1.4404… in stock 90,10 € (73,25 € excl. VAT) Add to basket
Stainless steel forged weld neck flange DN125 139,7mm EN1092-1/11B1 (PN10/16) 1.4541 / 321 S-KNSZ/139.70/1.4541 DN125 / 139.70mm PN10, PN16 8 1.4541, 321 in stock 75,64 € (61,50 € excl. VAT) Add to basket
Stainless steel forged weld neck flange DN125 139,7mm EN1092-1/11B1 (PN10/16) 1.4571 / 316Ti S-KNSZ/139.70/1.4571 DN125 / 139.70mm PN10, PN16 8 1.4571, 316Ti in stock 58,03 € (47,18 € excl. VAT) Add to basket
Stainless steel forged flat flange DN150 159mm EN1092-1/01B (PN10/16) 1.4301 / 1.4307 / 304 / 304L S-KNP/159.00/1.4307B DN150 / 159.00mm PN10, PN16 8 1.4301, 1.4307… in stock 66,66 € (54,20 € excl. VAT) Add to basket
Stainless steel forged flat flange DN150 168,3mm EN1092-1/ 01B (PN10/16) 1.4401 / 316 / 1.4404 / 316L S-KNP/168.30/1.4404 DN150 / 168.30mm PN10, PN16 8 1.4401, 1.4404… in stock 93,89 € (76,33 € excl. VAT) Add to basket
Stainless steel forged weld neck flange DN150 168,3mm EN1092-1/11B1 (PN10/16) 1.4401 / 316 / 1.4404 / 316L S-KNSZ/168.30/1.4404 DN150 / 168.30mm PN10, PN16 8 1.4401, 1.4404… in stock 78,70 € (63,98 € excl. VAT) Add to basket
Stainless steel forged weld neck flange DN150 168,3mm EN1092-1/11B1 (PN10/16) 1.4571 / 316Ti S-KNSZ/168.30/1.4571 DN150 / 168.30mm PN10, PN16 8 1.4571, 316Ti in stock 83,28 € (67,71 € excl. VAT) Add to basket
Stainless steel forged weld neck flange DN150 168,3mm EN1092-1/11B1 (PN6) 1.4401 / 316 / 1.4404 / 316L S-KNSZ/168.30/1.4404/PN6 DN150 / 168.30mm PN6 8 1.4401, 1.4404… in stock 84,00 € (68,29 € excl. VAT) Add to basket
Stainless steel forged flat flange DN200 219,1mm EN1092-1/01B (PN10/16) 1.4541 / 321 S-KNP/219.10/1.4541B/PN16 DN200 / 219.10mm PN10, PN16 12 1.4541, 321 in stock 98,75 € (80,28 € excl. VAT) Add to basket
Stainless steel forged flat flange DN125 139,7mm EN1092-1/01B (PN10/16) 1.4571 / 316Ti S-KNP/139.70/1.4571 DN125 / 139.70mm PN10, PN16 8 1.4571, 316Ti in stock 67,54 € (54,91 € excl. VAT) Add to basket
Stainless steel forged weld neck flange 3 1/2" SCH40S CLASS150 1.4301 / 1.4307 / 304 / 304L S-KNSZ/03.50/SCH40S/CLASS150/1.4307 3.5 inches CLASS150 8 1.4301, 1.4307… in stock 57,42 € (46,68 € excl. VAT) Add to basket
Stainless steel forged weld neck flange 5" SCH40S CLASS150 1.4301 / 1.4307 / 304 / 304L S-KNSZ/05.00/SCH40S/CLASS150/1.4307 5 inches CLASS150 8 1.4301, 1.4307… in stock 88,43 € (71,89 € excl. VAT) Add to basket
Stainless steel forged weld neck flange DN125 139,7mm EN1092-1/11B1 (PN6) 1.4401 / 316 / 1.4404 / 316L S-KNSZ/139.70/1.4404/PN6 DN125 / 139.70mm PN6 8 1.4401, 1.4404… in stock 68,71 € (55,86 € excl. VAT) Add to basket
Stainless steel forged weld neck flange DN150 159mm EN1092-1/11B1 (PN10/16) 1.4301 / 1.4307 / 304 / 304L S-KNSZ/159.00/1.4307 DN150 / 159.00mm PN10, PN16 8 1.4301, 1.4307… in stock 83,46 € (67,85 € excl. VAT) Add to basket
Stainless steel forged weld neck flange DN150 159mm EN1092-1/11B1 (PN10/16) 1.4541 / 321 S-KNSZ/159.00/1.4541 DN150 / 159.00mm PN10, PN16 8 1.4541, 321 in stock 80,68 € (65,59 € excl. VAT) Add to basket
Stainless steel forged weld neck flange DN150 168,3mm EN1092-1/11B1 (PN10/16) 1.4301 / 1.4307 / 304 / 304L S-KNSZ/168.30/1.4307 DN150 / 168.30mm PN10, PN16 8 1.4301, 1.4307… in stock 87,65 € (71,26 € excl. VAT) Add to basket
Stainless steel forged blind flange DN100 114,3mm EN1092-1/05A (PN10/16) 1.4541 / 321 S-KNZ/114.30/1.4541 DN100 / 114.30mm PN10, PN16 8 1.4541, 321 in delivery 59,96 € (48,75 € excl. VAT) Ask about delivery
Stainless steel forged blind flange DN100 114,3mm EN1092-1/05B (PN10/16) 1.4401 / 1.4404 / 316 / 316L S-KNZ/114.30/1.4404 DN100 / 114.30mm PN10, PN16 8 1.4401, 1.4404… in delivery 73,75 € (59,96 € excl. VAT) Ask about delivery
Stainless steel forged blind flange DN80 88,9mm EN1092-1/05A (PN10/16) 1.4541 / 321 S-KNZ/088.90/1.4541 DN80 / 88.90mm PN10, PN16 8 1.4541, 321 in delivery 54,27 € (44,12 € excl. VAT) Ask about delivery
Stainless steel forged flat flange DN100 114,3mm EN1092-1/01A (PN10/16) 1.4541 / 321 S-KNP/114.30/1.4541 DN100 / 114.30mm PN10, PN16 8 1.4541, 321 in delivery 50,64 € (41,17 € excl. VAT) Ask about delivery
Stainless steel forged flat flange DN100 114,3mm EN1092-1/01B (PN10/16) 1.4401 / 316 / 1.4404 / 316L S-KNP/114.30/1.4404 DN100 / 114.30mm PN10, PN16 8 1.4401, 1.4404… in delivery 51,34 € (41,74 € excl. VAT) Ask about delivery
Stainless steel forged flat flange DN125 139,7mm EN1092-1/01A (PN10/16) 1.4541 / 321 S-KNP/139.70/1.4541 DN125 / 139.70mm PN10, PN16 8 1.4541, 321 in delivery 69,82 € (56,76 € excl. VAT) Ask about delivery
Stainless steel forged flat flange DN150 159mm EN1092-1/ 01B (PN10/16) 1.4541 / 321 S-KNP/159.00/1.4541B DN150 / 159.00mm PN10, PN16 8 1.4541, 321 in delivery 88,11 € (71,63 € excl. VAT) Ask about delivery
Stainless steel forged flat flange DN150 168,3mm EN1092-1/ 01A (PN10/16) 1.4541 / 321 S-KNP/168.30/1.4541 DN150 / 168.30mm PN10, PN16 8 1.4541, 321 in delivery 80,41 € (65,37 € excl. VAT) Ask about delivery
Stainless steel forged flat flange DN150 168,3mm EN1092-1/ 01B (PN10/16) 1.4541 / 321 S-KNP/168.30/1.4541B DN150 / 168.30mm PN10, PN16 8 1.4541, 321 in delivery 82,94 € (67,43 € excl. VAT) Ask about delivery
Stainless steel forged flat flange DN150 168,3mm EN1092-1/01B (PN10/16) 1.4301 / 1.4307 / 304 / 304L S-KNP/168.30/1.4307B DN150 / 168.30mm PN10, PN16 8 1.4301, 1.4307… in delivery 66,64 € (54,18 € excl. VAT) Ask about delivery
Stainless steel forged flat flange DN150 168,3mm EN1092-1/01B (PN10/16) 1.4571 / 316Ti S-KNP/168.30/1.4571 DN150 / 168.30mm PN10, PN16 8 1.4571, 316Ti in delivery 89,69 € (72,92 € excl. VAT) Ask about delivery
Stainless steel forged loose flange DN150 168,3mm EN1092-1/02A (PN10/16) 1.4301 / 1.4307 / 304 / 304L S-KNL/168.30/1.4307 DN150 / 168.30mm PN10, PN16 8 1.4301, 1.4307… in delivery 70,08 € (56,98 € excl. VAT) Ask about delivery
Stainless steel forged weld neck flange DN150 168,3mm EN1092-1/11B1 (PN10/16) 1.4541 / 321 S-KNSZ/168.30/1.4541 DN150 / 168.30mm PN10, PN16 8 1.4541, 321 in delivery 78,23 € (63,60 € excl. VAT) Ask about delivery

Stainless and acid-resistant steel flanges for joining pipelines: weld neck, slip-on, blind and lap joint. Choose a flange type or narrow the list with the pipe diameter, nominal pressure and steel grade filters.

Steel grades

Each grade has its own page with chemical composition, equivalent designations and the full list of products in stock.

Acid-resistant

Austenitic with molybdenum – resistant to pitting and crevice corrosion; for chemicals, processing and chloride environments.

Austenitic stainless

Chromium-nickel without molybdenum – the standard choice for structures, food service and interiors.

Heat-resistant

Higher chromium and silicon – retain strength and scaling resistance at high temperatures.

Ferritic

Chromium without nickel – cheaper, magnetic, good where atmospheric corrosion resistance matters.

Duplex

Austenitic-ferritic structure – twice the yield strength with good stress corrosion resistance.