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

Butt-weld reducer DN 150 × DN 100 (6" × 4"): dimensions and references

Butt-weld reducer DN 150 × DN 100 (6" × 4"), OD 168.3 × 114.3 mm: the dimensions in both standards, wall, weight and the 8 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)168.3168.3
Small end OD (mm)114.3114.3
Length (mm)140 (H)form 2: 140 · form 1: 141 (not in catalog)
Wall large / small end (mm)STD 7.11 / 6.02 · XS 10.97 / 8.564.5 / 3.6 (S235)
Indicative weight (kg)STD 3.36 · XS 5.03form 2: 3.80

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

The outside diameter is the same in both standards: 168.3 mm.

Available references

ReferenceStandardItemWallGradeFinishMake
RCS168114STDPASME B16.9Butt-weld concentric reducerSTDA234 WPBPaintedSeamless
RCS168114XSPASME B16.9Butt-weld concentric reducerXSA234 WPBPaintedSeamless
RES168114STDPASME B16.9Butt-weld eccentric reducerSTDA234 WPBPaintedSeamless
RES168114XSPASME B16.9Butt-weld eccentric reducerXSA234 WPBPaintedSeamless
R2S168114GEN 10253-1Butt-weld concentric reducer, Form 24.5 / 3.6S235GalvanizedSeamless
R2W168114GEN 10253-1Butt-weld concentric reducer, Form 24.5 / 3.6S235GalvanizedWelded
R2S168114NEN 10253-1Butt-weld concentric reducer, Form 24.5 / 3.6S235BlackSeamless
R2W168114NEN 10253-1Butt-weld concentric reducer, Form 24.5 / 3.6S235BlackWelded

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

Frequently asked questions

How long is a 6" × 4" reducer?

140 mm to ASME B16.9, concentric or eccentric. To EN 10253-1 form 2: 140 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.