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NPS 1/4 Class 150 malleable iron coupling envelope

NPS 1/4 Class 150 malleable iron coupling envelope: end-to-end 26.92, OD (min) Ø21.34, plain bore Ø11.1 (NPT tap-drill size; thread not drawn)

Exact dimensions. True size, no tolerance added. Threads are plain cylinders at the major diameter.

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Dimensions

NPS1/4
90° elbow A, in (mm)0.81 (20.6)
45° elbow A, in (mm)0.73 (18.5)
tee A, in (mm)0.81 (20.6)
tee OD B, in (mm)0.84 (21.3)
nominal cast wall, in0.09
coupling end-to-end, in (mm)1.06 (26.9)
coupling OD min, in (mm)0.84 (21.3)
union end-to-end (Fig. 463)47 mm (1 13/16 in)
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From the full sheet

Malleable iron threaded fittings, Class 150 (ASME B16.3): elbow, tee, coupling and union dimensions, NPS 1/8 to 6: every size, notes, mating features and sources. What are the center-to-end dimensions of a Class 150 malleable iron (black iron) 90° elbow, 45° elbow, tee, coupling and union?

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