Xem Studiomeasured geometryLibrary › Tri-clamp & pipe › Butt-weld reducers, concentric and eccentric (ASME B16.9), NPS ¾ to 12
bw-reducer-concentric-nps4x2-sch40
NPS 4 × 2 concentric reducer, Sch 40 each end, end-to-end 102 mm; drawn as a straight cone between the ends (transition shape not set by B16.9); square ends
Exact dimensions. True size, no printing tolerance added. Threads are plain cylinders at the major diameter.
STEP STL free, CC BY 4.0 (credit "Xem Studio")
Dimensions
| size, NPS | 4 × 2 |
|---|---|
| large-end OD, mm | 114.3 |
| small-end OD, mm | 60.3 |
| end-to-end H, mm | 102 |
Let your AI pull this. Add
Set it up →https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.From the full sheet
Butt-weld reducers, concentric and eccentric (ASME B16.9), NPS ¾ to 12: every size, notes, mating features and sources. What is the end-to-end length of a butt-weld concentric or eccentric reducer (ASME B16.9)?