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Collars

Welding neck EN 1092-1 type 33/37

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 Material type Stock
52134159
Weld-neck collar 21.30x2.00 304
Welding neck 21.30 x 2.00 1.4307 (304L)

3.1 Certificate: Yes

Alternative products
DN15 1/2" (ø 21,3 mm)
304 (L)
52134201
Weld-neck collar 25.00x2.00 304
Welding neck 25.00 x 2.00 1.4307 (304L)

3.1 Certificate: Yes

Alternative products
DN20 (ø 25 mm)
304 (L)
52134223
Weld-neck collar 26.90x2.00 304
Welding neck 26.90 x 2.00 1.4307 (304L)

3.1 Certificate: Yes

Alternative products
DN20 3/4" (ø 26,9 mm)
304 (L)
52134296
Weld-neck collar 33.70x2.00 304
Welding neck 33.70 x 2.00 1.4307 (304L)

3.1 Certificate: Yes

Alternative products
DN25 1" (ø 33,7 mm)
304 (L)
52134338
Weld-neck collar 38.00x2.00 304
Welding neck 38.00 x 2.00 1.4307 (304L)

3.1 Certificate: Yes

Alternative products
(ø 38 mm)
304 (L)
52134363
Weld-neck collar 40.00x2.00 304
Welding neck 40.00 x 2.00 1.4307 (304L)

3.1 Certificate: Yes

Alternative products
DN32 (ø 40 mm)
304 (L)
52134383
Weld-neck collar 42.40x2.00 304
Welding neck 42.40 x 2.00 1.4307 (304L)

3.1 Certificate: Yes

Alternative products
DN32 1,25" (ø 42,4 mm)
304 (L)
52134384
Weld-neck collar 42.40x3.00 304
Welding neck 42.40 x 3.00 1.4307 (304L)

3.1 Certificate: Yes

DN32 1,25" (ø 42,4 mm)
304 (L)
52134404
Weld-neck collar 44,50x2,00 304
Welding neck 44.50 x 2.00 1.4307 (304L)

3.1 Certificate: Yes

Alternative products
DN40 (ø 44,5 mm)
304 (L)
52134428
Weld-neck collar 48.30x2.00 304
Welding neck 48.30 x 2.00 1.4307 (304L)

3.1 Certificate: Yes

Alternative products
DN40 1,5" (ø 48,3 mm)
304 (L)
52134429
Weld-neck collar 48.30x3.00 304
Welding neck 48.30 x 3.00 1.4307 (304L)

3.1 Certificate: Yes

Alternative products
DN40 1,5" (ø 48,3 mm)
304 (L)
52134482
Weld-neck collar 54.00x2.00 304
Welding neck 54.00 x 2.00 1.4307 (304L)

3.1 Certificate: Yes

Alternative products
DN50 (ø 54 mm)
304 (L)