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Loose flanges (welding)

Flat welding flange EN 1092-1 type 1  

For industrial piping systems, flanged connections are one of the most widely used and reliable connection methods. Many valves, pumps and other pipeline components are equipped with flange connections, allowing them to be installed and removed easily without introducing unnecessary stress into the piping system. This makes flanged connections particularly suitable for applications where accessibility, ease of maintenance and operational reliability are important.

EN 1092-1 is the current European standard for circular steel flanges and provides a uniform classification based on different flange types and pressure ratings. Specifications that were previously covered by various DIN and ISO standards are now largely consolidated within this European standard.

EN 1092-1 is aligned with other European standards commonly used in industrial piping systems, including EN 10217-7 for welded stainless steel tubes and EN 10253-4 for stainless steel butt-welding fittings. This creates a consistent and standardized approach to the selection of compatible piping components for pressure applications.

By selecting components according to these standards, piping systems can be designed with a high degree of compatibility, reliability and safety. These standards also support compliance with requirements that may apply under the European Pressure Equipment Directive (PED 2014/68/EU).

Filter
Articlenr. Description Dimensions Hole size (mm) Material type Pressure stage Stock
672140171
Plain.fl. PN10/16/40 DN15/21.3 304
Flat welding flange EN 1092-1 type 1 PN10/16/40 DN15/21.3 1.4307 (304L)

3.1 Certificate: Yes

Alternative products
DN15 1/2" (ø 21,3 mm)
21.1
304 (L)
PN10 PN16 PN40
67214018
Plain.fl. ND10/16/40 DN15/18-19 304
Flat welding flange EN 1092-1 type 1 PN10/16 DN15/18-191.4307 (304L)

3.1 Certificate: Yes

Alternative products
DN15 (ø 18 mm)
19
304 (L)
PN10 PN16 PN40
67214021
Plain.fl. PN10/16/40 DN20/25.4 304
Flat welding flange EN 1092-1 type 1 PN10/16/40 DN20/25.41.4307 (304L)

3.1 Certificate: Yes

Alternative products
DN20 3/4" (ø 26,9 mm)
25.4
304 (L)
PN10 PN16 PN40
67214022
Plain.fl. PN10/16/40 DN20/22 304
Flat welding flange EN 1092-1 type 1 PN10/16/40 DN20/22-231.4307 (304L)

3.1 Certificate: Yes

Alternative products
DN20 (ø 22 mm)
23
304 (L)
PN10 PN16 PN40
672140231
Plain.fl. PN10/16/40 DN20/26.9 304
Flat welding flange EN 1092-1 type 1 PN10/16/40 DN20/26.9 1.4307 (304L)

3.1 Certificate: Yes

Alternative products
DN20 3/4" (ø 26,9 mm)
26.9
304 (L)
PN10 PN16 PN40
67214026
Plain.fl. PN10/16/40 DN25/25.4 304
Flat welding flange EN 1092-1 type 1 PN10/16/40 DN25/25.4 1.4307 (304L)

3.1 Certificate: Yes

Alternative products
1" (ø 25,4 mm)
25.4
304 (L)
PN10 PN16 PN40
67214027
Plain.fl. PN10/16/40 DN25/28-29 304
Flat welding flange EN 1092-1 type 1 PN10/16/40 DN25/28/29 1.4307 (304L)

3.1 Certificate: Yes

Alternative products
DN25 (ø 28 mm) DN25 (ø 29 mm)
29
304 (L)
PN10 PN16 PN40
672140281
Plain.fl. PN10/16/40 DN25/33.7 304
Flat welding flange EN 1092-1 type 1 PN10/16/40 DN25/33.7 1.4307 (304L)

3.1 Certificate: Yes

Alternative products
DN25 1" (ø 33,7 mm)
33.7
304 (L)
PN10 PN16 PN40
67214033
Plain.fl. PN10/16/40 DN32/31.8 304
Flat welding flange EN 1092-1 type 1 PN10/16/40 DN32/31.8 1.4307 (304L)

3.1 Certificate: Yes

Alternative products
DN32 (ø 35 mm)
31.8
304 (L)
PN10 PN16 PN40
672140341
Plain.fl. PN10/16/40 DN32/42.4 304
Flat welding flange EN 1092-1 type 1 PN10/16/40 DN32/42.4 1.4307 (304L)

3.1 Certificate: Yes

Alternative products
DN32 1,25" (ø 42,4 mm)
42.4
304 (L)
PN10 PN16 PN40
67214036
Flat.fl. PN10/16/40 DN32/34-35 304
Flat welding flange EN 1092-1 type 1 PN10/16/40 DN32/34.0 1.4307 (304L)

3.1 Certificate: Yes

Alternative products
DN32 (ø 35 mm)
34
304 (L)
PN10 PN16 PN40
67214041
Plain.fl. PN10/16/40 DN40/38.0 304
Flat welding flange EN 1092-1 type 1 PN10/16/40 DN40/38.0 1.4307 (304L)

3.1 Certificate: Yes

Alternative products
1,5" (ø 38 mm)
38
304 (L)
PN10 PN16 PN40