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Stalesia

Acid-Resistant Stainless Steel Slip-On Flanges

18 items available from stock, shipped from our warehouse.

Product Pipe Ø PN Bolt holes Grade Availability Price Action
Stainless steel forged flat flange DN20 26,9mm EN1092-1/01B (PN10/16/25/40) 1.4401 / 316 / 1.4404 / 316L S-KNP/026.90/1.4404 DN20 / 26.90mm PN25, PN10, PN16, PN40 4 1.4401, 1.4404… in stock 12,86 € (10,46 € excl. VAT) Add to basket
Stainless steel forged flat flange DN20 26,9mm EN1092-1/01B (PN10/16/25/40) 1.4571 / 316Ti S-KNP/026.90/1.4571 DN20 / 26.90mm PN25, PN10, PN16, PN40 4 1.4571, 316Ti in stock 12,44 € (10,11 € excl. VAT) Add to basket
Stainless steel forged flat flange DN40 48,3mm EN1092-1/01B (PN10/16/25/40) 1.4401 / 316 / 1.4404 / 316L S-KNP/048.30/1.4404 DN40 / 48.30mm PN25, PN10, PN16, PN40 4 1.4401, 1.4404… in stock 26,15 € (21,26 € excl. VAT) Add to basket
Stainless steel forged flat flange DN40 48,3mm EN1092-1/01B (PN10/16/25/40) 1.4571 / 316Ti S-KNP/048.30/1.4571 DN40 / 48.30mm PN25, PN10, PN16, PN40 4 1.4571, 316Ti in stock 27,55 € (22,40 € excl. VAT) Add to basket
Stainless steel forged flat flange DN50 60,3mm EN1092-1/01B (PN10/16) 1.4571 / 316Ti S-KNP/060.30/1.4571 DN50 / 60.30mm PN10, PN16 4 1.4571, 316Ti in stock 40,97 € (33,31 € excl. VAT) Add to basket
Stainless steel forged flat flange DN65 76,1mm EN1092-1/01B (PN10/16) 1.4571 / 316Ti 8 holes S-KNP/076.10/1.4571/8OTW DN65 / 76.10mm PN10, PN16 8 1.4571, 316Ti in stock 38,57 € (31,36 € 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 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 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 flat flange DN200 219,1mm EN1092-1/01B (PN10/16) 1.4401 / 316 / 1.4404 / 316L S-KNP/219.10/1.4404 DN200 / 219.10mm PN10, PN16 12 1.4401, 1.4404… in stock 118,18 € (96,08 € excl. VAT) Add to basket
Stainless steel forged flat flange DN250 273mm EN1092-1/01B (PN10/16) 1.4401 / 316 / 1.4404 / 316L S-KNP/273.00/1.4404 DN250 / 273.00mm PN10, PN16 12 1.4401, 1.4404… in stock 161,04 € (130,93 € excl. VAT) Add to basket
Stainless steel forged flat flange DN300 323,9mm EN1092-1/01B (PN10/16) 1.4401 / 1.4404 / 316 / 316L S-KNP/323.90/1.4404/PN16 DN300 / 323.90mm PN10, PN16 12 1.4401, 1.4404… in stock 195,70 € (159,11 € 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 flat flange DN15 21,3mm EN1092-1/01B (PN10/16/25/40) 1.4401 / 316 / 1.4404 / 316L S-KNP/021.30/1.4404 DN15 / 21.30mm PN25, PN10, PN16, PN40 4 1.4401, 1.4404… in stock 10,26 € (8,34 € excl. VAT) Add to basket
Stainless steel forged flat flange DN15 21,3mm EN1092-1/01B (PN10/16/25/40) 1.4571 / 316Ti S-KNP/021.30/1.4571 DN15 / 21.30mm PN25, PN10, PN16, PN40 4 1.4571, 316Ti in stock 8,43 € (6,85 € excl. VAT) Add to basket
Stainless steel forged flat flange DN300 323,9mm EN1092-1/01B (PN10) 1.4401 / 1.4404 / 316 / 316L S-KNP/323.90/1.4404 DN300 / 323.90mm PN10 12 1.4401, 1.4404… in stock 163,99 € (133,33 € excl. VAT) Add to basket
Stainless steel forged flat flange DN32 42,4mm EN1092-1/01B (PN10/16/25/40) 1.4401 / 316 / 1.4404 / 316L S-KNP/042.40/1.4404 DN32 / 42.40mm PN25, PN10, PN16, PN40 4 1.4401, 1.4404… in stock 22,94 € (18,65 € excl. VAT) Add to basket
Stainless steel forged flat flange DN32 42,4mm EN1092-1/01B (PN10/16/25/40) 1.4571 / 316Ti S-KNP/042.40/1.4571 DN32 / 42.40mm PN25, PN10, PN16, PN40 4 1.4571, 316Ti in stock 24,14 € (19,63 € excl. VAT) Add to basket

Recommended acid-resistant steel products from other categories

See also

Articles on acid-resistant steel

Composition, properties and applications of grades in this family.

This page brings together plate flanges in acid-resistant steel that we have in stock right now. Austenitic with molybdenum — resistant to pitting and crevice corrosion; for chemicals, processing and chloride environments. More about acid-resistant steels →

Most items are in grades: 1.4404 (10), 316L (10), 316 (10), 1.4401 (10), 1.4571 (8). Each grade has its own page with the material profile, equivalent designations and the full list of products.

A 3.1 inspection certificate can be added to your order (paid extra, 20 zł). The minimum order value is 15 zł.