Dimension chart · ASME B16.9 · EN 10253-1
Butt-weld reducer DN 100 × DN 80 (4" × 3"): dimensions and references
Butt-weld reducer DN 100 × DN 80 (4" × 3"), OD 114.3 × 88.9 mm: the dimensions in both standards, wall, weight and the 8 available references.
ASME B16.9 and EN 10253-1 dimensions

| ASME B16.9 | EN 10253-1 | |
|---|---|---|
| Large end OD (mm) | 114.3 | 114.3 |
| Small end OD (mm) | 88.9 | 88.9 |
| Length (mm) | 102 (H) | form 2: 102 · form 1: 90 (not in catalog) |
| Wall large / small end (mm) | STD 6.02 / 5.49 · XS 8.56 / 7.62 | 3.6 / 3.2 (S235) |
| Indicative weight (kg) | STD 1.46 · XS 2.02 | form 2: 1.60 |
Dimensions in mm. Tolerances and definitions in the full chart.
The outside diameter is the same in both standards: 114.3 mm.
Available references
| Reference | Standard | Item | Wall | Grade | Finish | Make |
|---|---|---|---|---|---|---|
| RCS11488STDP | ASME B16.9 | Butt-weld concentric reducer | STD | A234 WPB | Painted | Seamless |
| RCS11488XSP | ASME B16.9 | Butt-weld concentric reducer | XS | A234 WPB | Painted | Seamless |
| RES11488STDP | ASME B16.9 | Butt-weld eccentric reducer | STD | A234 WPB | Painted | Seamless |
| RES11488XSP | ASME B16.9 | Butt-weld eccentric reducer | XS | A234 WPB | Painted | Seamless |
| R2S11488G | EN 10253-1 | Butt-weld concentric reducer, Form 2 | 3.6 / 3.2 | S235 | Galvanized | Seamless |
| R2W11488G | EN 10253-1 | Butt-weld concentric reducer, Form 2 | 3.6 / 3.2 | S235 | Galvanized | Welded |
| R2S11488N | EN 10253-1 | Butt-weld concentric reducer, Form 2 | 3.6 / 3.2 | S235 | Black | Seamless |
| R2W11488N | EN 10253-1 | Butt-weld concentric reducer, Form 2 | 3.6 / 3.2 | S235 | Black | Welded |
8 references of this size in the catalog. Click a reference for its page and to add it to your quote.
See the whole catalog → All references of the family
Other sizes
Reducers
Frequently asked questions
How long is a 4" × 3" reducer?
102 mm to ASME B16.9, concentric or eccentric. To EN 10253-1 form 2: 102 mm.
Which finishes are available for this fitting?
In the catalog: black, galvanized, painted. EN 10253-1 fittings in S235 come black or galvanized; ASME B16.9 fittings in A234 WPB are delivered painted.
