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Dimension chart · ASME B16.9 · EN 10253-1

Butt-weld reducer DN 65 × DN 32 (2½" × 1¼"): dimensions and references

Butt-weld reducer DN 65 × DN 32 (2½" × 1¼"), OD 76.1 / 73.0 × 42.4 / 42.2 mm: the dimensions in both standards, wall, weight and the 12 available references.

ASME B16.9 and EN 10253-1 dimensions

Dimensioned drawing of a butt-weld concentric reducer
H: end-to-end length. OD1: large end, OD2: small end. T1: small end wall, T2: large end wall. Left, conical reducer; right, with rounded transitions.
ASME B16.9EN 10253-1
Large end OD (mm)73.076.1
Small end OD (mm)42.242.4
Length (mm)89 (H)form 2: 89 · form 1: 95
Wall large / small end (mm)STD 5.16 / 3.56 · XS 7.01 / 4.852.9 / 2.6 (S235)
Indicative weight (kg)STD 0.60 · XS 0.79form 2: 0.70 · form 1: 0.50

Dimensions in mm. Tolerances and definitions in the full chart.

Mind the outside diameter: 76.1 mm to EN 10253-1 (EN 10220 series), 73.0 mm to ASME B16.9 (ASME B36.10 series). Choose the fitting in the series of the pipe.

Available references

ReferenceStandardItemWallGradeFinishMake
RCS7342STDPASME B16.9Butt-weld concentric reducerSTDA234 WPBPaintedSeamless
RCS7342XSPASME B16.9Butt-weld concentric reducerXSA234 WPBPaintedSeamless
RES7342STDPASME B16.9Butt-weld eccentric reducerSTDA234 WPBPaintedSeamless
RES7342XSPASME B16.9Butt-weld eccentric reducerXSA234 WPBPaintedSeamless
R1S7642GEN 10253-1Butt-weld concentric reducer, Form 12.9 / 2.6S235GalvanizedSeamless
R1W7642GEN 10253-1Butt-weld concentric reducer, Form 12.9 / 2.6S235GalvanizedWelded
R1S7642NEN 10253-1Butt-weld concentric reducer, Form 12.9 / 2.6S235BlackSeamless
R1W7642NEN 10253-1Butt-weld concentric reducer, Form 12.9 / 2.6S235BlackWelded
R2S7642GEN 10253-1Butt-weld concentric reducer, Form 22.9 / 2.6S235GalvanizedSeamless
R2W7642GEN 10253-1Butt-weld concentric reducer, Form 22.9 / 2.6S235GalvanizedWelded
R2S7642NEN 10253-1Butt-weld concentric reducer, Form 22.9 / 2.6S235BlackSeamless
R2W7642NEN 10253-1Butt-weld concentric reducer, Form 22.9 / 2.6S235BlackWelded

12 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

Frequently asked questions

How long is a 2½" × 1¼" reducer?

89 mm to ASME B16.9, concentric or eccentric. To EN 10253-1 form 2: 89 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.