The delivery requirements of Bercellesi Berinox’s products are in accordance with the following standards.
Fittings
-EN 10253-3: Butt-welding pipe fittings part 3: wrought austenitic and austenitic-ferritic (duplex) stainless steels without specific inspection requirements
- EN 10253-4: Butt-welding pipe fittings Part 4: wrought austenitic and austenitic-ferritic (duplex) stainless steels with specific inspection requirements
Bercellesi Standard: Stainless steel butt-welding pipe fittings austenitic and austenitic-ferritic (duplex) with supply requirements in accordance with EN 10253-3 with outside diameters differing from the EN as referred to.
Pressed Collars Type 33 and 37
- EN 1092-1: Flanges and their joints: Circular flanges for pipes, valves, fittings, and accessories, PN designated – Part 1 Steel Flanges.
Bercellesi Standard:
Pressed Collars Type 33 and 37 with supply requirements in accordance with EN 1092-1 with outside diameters differing from the EN as referred to.
The tolerances indicated comply with the EN 10253-3
| DIMENSIONS (MM) | Tolerances |
| Outside diameter EN tolerance class: D2 |
± 1,0% or ± 0,5mm
Whichever is the greater |
| Wall Thickness T ≤ 4 | -12,5% / 20% |
| Wall Thickness T > 4 | -12,5% / 15% |
| Outside diameter | F-G-H-L K |
|
From ≤ 114,3
From 114,3 < to d ≤ 219,1 From 219,1 < to d ≤ 406,4 From 406,4 < to d ≤ 762 From 762 < to d ≤ 1219 |
± 2 mm ± 4 mm
± 2 mm ± 7mm ± 3 mm ± 7 mm ± 5 mm ± 7 mm ± 10 mm ± 10 mm |
The Tolerances indicated comply with EN 1092-1
| DIMENSIONS (MM) | Tolerances |
| Wall thickness T on neck: | |
|
DN ≤ 600
DN > 600 |
-12,5% / + 15 %
-0,5 % / + 15 % |
|
Wall thickness on flange
T ≤ 5 mm |
± 0,2 mm |
| Height H: | |
|
From DN ≤ 80
From DN > 80 to DN ≤ 250 From DN > 250 |
± 1,5 mm
± 2 mm ± 3 mm |
| Diameter on neck D1: | |
|
DN ≤ 150
DN > 150 |
± 0,75% min ± 0,3 mm
± 1% max ± 3,0 mm |
| Diameter on Flange D: | |
|
DN ≤ 250
DN > 250 |
-1 / +2 mm
-1 / +3 mm |
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