Socket weld couplings, half couplings and caps (mm) ¼"" — ASME B16.11
Socket weld couplings, half couplings and caps (mm) ¼"" to ASME B16.11: dn 8, e — full coupling 6.5 mm, f — half coupling 16 mm, k — cap, 3000 4.8 mm, k — cap, 6000 6.4 mm.
Dimensions of Socket weld couplings, half couplings and caps (mm) ¼""
| Symbol | Dimension | Value |
|---|---|---|
| · | DN | 8 |
| · | E — Full coupling | 6.5 mm (0.256 in) |
| · | F — Half coupling | 16 mm (0.630 in) |
| · | K — Cap, 3000 | 4.8 mm (0.189 in) |
| · | K — Cap, 6000 | 6.4 mm (0.252 in) |
SKU TSH-FORGED-ASME-B16-11-¼" · Standard ASME B16.11 · teshi-web
Purchase description
SOCKET WELD COUPLINGS, HALF COUPLINGS AND CAPS (MM), ¼"", ASTM A105N, ASME B16.11
Available materials: ASTM A105N, ASTM A350 LF2 Cl 1, ASTM A182 F304/304L, ASTM A182 F316/316L, ASTM A182 F11, ASTM A182 F22, ASTM A182 F51 (Duplex).
Notes
- Dimensions are in millimetres unless stated otherwise.
- Socket bore B and fitting bore D are shown as the mid-point of the maximum and minimum limits in the standard.
- A dash means the standard does not list that size in that class.
- A gap of approximately 1.6 mm is left between the pipe end and the bottom of the socket before welding.
Other sizes — Socket weld couplings, half couplings and caps (mm), Standard
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.