IS 1239-2 Table 9 Nominal size (large x small) 15 x 8 elbows, reducing (screwed) (mm) — IS 1239-2
IS 1239-2 Table 9 Nominal size (large x small) 15 x 8 elbows, reducing (screwed) (mm) to IS 1239-2: a min centre to face 25 mm, b min centre to face 32 mm.
Dimensions of IS 1239-2 Table 9 Nominal size (large x small) 15 x 8 elbows, reducing (screwed) (mm)
| Symbol | Dimension | Value |
|---|---|---|
| · | A min centre to face | 25 mm (0.984 in) |
| · | B min centre to face | 32 mm (1.260 in) |
SKU TSH-BW-IS-1239-2-ELBOWS-REDUCING-SCREWED-MM-15x8 · Standard IS 1239-2 · teshi-web
Purchase description
IS 1239-2 TABLE 9, Nominal size (large x small) 15 x 8, ELBOWS, REDUCING (SCREWED) (MM), ASTM A234 WPB, IS 1239-2
Available materials: ASTM A234 WPB, ASTM A420 WPL6, ASTM A403 WP304/304L, ASTM A403 WP316/316L, ASTM A234 WP11, ASTM A234 WP22, ASTM A234 WP91, ASTM A815 UNS S31803.
Notes
- All dimensions are in millimetres; nominal sizes are nominal bore (mm).
- Threads are to IS 554 (equivalent to BSP / ISO 7-1).
- Values are nominal dimensions from the standard; a dash (—) means the value is not listed. Verify against the current edition before design, purchase or fabrication.
Other sizes — IS 1239-2 Table 9, elbows, reducing (screwed) (mm)
Nominal size (large x small) 8 x 6Nominal size (large x small) 10 x 6Nominal size (large x small) 10 x 8Nominal size (large x small) 15 x 10Nominal size (large x small) 20 x 8Nominal size (large x small) 20 x 10Nominal size (large x small) 20 x 15Nominal size (large x small) 25 x 10Nominal size (large x small) 25 x 15Nominal size (large x small) 25 x 20Nominal size (large x small) 32 x 15Nominal size (large x small) 32 x 20Nominal size (large x small) 32 x 25Nominal size (large x small) 40 x 15Nominal size (large x small) 40 x 20Nominal size (large x small) 40 x 25Nominal size (large x small) 40 x 32Nominal size (large x small) 50 x 15Nominal size (large x small) 50 x 20Nominal size (large x small) 50 x 25Nominal size (large x small) 50 x 32Nominal size (large x small) 50 x 40Nominal size (large x small) 65 x 40Nominal size (large x small) 65 x 50Nominal size (large x small) 80 x 25Nominal size (large x small) 80 x 50Nominal size (large x small) 100 x 50Nominal size (large x small) 100 x 80
Frequently asked questions
What is the difference between a long radius and short radius elbow?
A long radius (LR) elbow has a centre-line radius of 1.5 × NPS and is the default choice. A short radius (SR) elbow has a radius of 1.0 × NPS. SR elbows save space but add pressure drop and are not suitable for pigging.
What is the centre-to-end dimension of a 90° LR elbow?
For ASME B16.9 90° LR elbows the centre-to-end dimension A is 1.5 × NPS in inches. For example, a 6" elbow is 229 mm (9 in) and a 4" elbow is 152 mm (6 in).
What is the difference between a concentric and an eccentric reducer?
A concentric reducer keeps both ends on the same centre line. An eccentric reducer has one flat side. Eccentric reducers go on pump suctions with the flat side on top, so air pockets cannot form.
What is a 3D or 5D bend?
A bend whose centre-line radius is 3 or 5 times the nominal pipe size. They are usually made by induction bending and supplied with tangent lengths. 5D bends allow pigging in pipelines.