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Tri-clamp butterfly valves, printable: 1½ to 4 in
Can I 3D print a tri-clamp butterfly valve? · Hardware · basis: Xem Studio design: two bolted body halves with ISO 2852 clamp faces, a flexible seat ring clamped between them, a full-bore disc on a Ø6 D-flat stem, a lever
Exact dimensions. True size, with no printing tolerance added.
- sizes
- 5 in table
Notes
- Face to face 44 mm for every size: each half is the clamp face and its 14 mm neck (room for the clamp) plus an 8 mm body; the seat ring sits in counterbores in both halves.
- The disc is drawn at the bore; it seals by squeezing the flexible seat. Quarter turn: lever along the line is open.
- Every clamp face is the ISO 2852 profile used across this site: 2.85 mm rim, flat face with the gasket groove (K 1.6 deep, R3 1.2 bottom, 23° walls, P2 0.8 edges) on C2, 20° back cone. Flange C3 / groove C2 / tube OD × wall, mm: ½–¾ in 25.0 / 20.4 (derived) / 12.7–19.05 × 1.65; 1–1½ in 50.5 / 43.5 / 25.4–38.1 × 1.65; 2 in 64.0 / 56.5 / 50.8 × 1.65; 2½ in 77.5 / 70.5 / 63.5 × 1.65; 3 in 91.0 / 83.5 / 76.2 × 1.65; 4 in 119.0 / 110.0 / 101.6 × 2.11; 6 in 166.9 (6.570 in) / 156.5 / 152.4 × 2.77; 8 in 217.7 (8.570 in) / 207.0 / 203.2 × 2.77; 10 in 268.5 / 261.0 / 254.0 × 3.40; 12 in 319.3 / 311.8 / 304.8 × 3.40.
Sizes
| size_in | face_to_face_mm | body_od_mm | bore_mm | bolts |
|---|---|---|---|---|
| 1.5 | 44.0 | 74.5 | 34.8 | 4 × M5 |
| 2 | 44.0 | 88.0 | 47.5 | 4 × M5 |
| 2.5 | 44.0 | 101.5 | 60.2 | 4 × M5 |
| 3 | 44.0 | 115.0 | 72.9 | 4 × M5 |
| 4 | 44.0 | 143.0 | 97.38 | 4 × M5 |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| GW Kent | Tri-clamp fittings guide: tube OD, flange OD and ID per size to 12 in; solid cap thickness | web | publisher's guide; dimensions cited |
| Rubber Fab | Tri-Clamp gasket dimensional chart: gasket ID, OD and bead diameter per size (2 in bead 2.22 in / 56.50 mm, 1.5 in 1.71 / 43.50, 3 in 3.29 / 83.50) | maker chart; dimensions are facts verify |
Free files
★ Free files 25 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json
| butterfly-body-half-1.5in | 1.5 in body half (two per valve): clamp face, Ø74 body, seat counterbore, half the Ø6.4 stem bore, four M5 holes on r 31.2 | STEP · STL |
| butterfly-seat-1.5in | 1.5 in seat ring Ø46.8 × Ø34.80 × 3 with the stem holes (flexible material) | STEP · STL |
| butterfly-disc-1.5in | 1.5 in disc Ø34.80 (= the bore) × 4 on a D-flat Ø6 stem bore | STEP · STL |
| butterfly-stem-1.5in | 1.5 in stem Ø6 × 114 with a 1.0 D-flat | STEP · STL |
| butterfly-handle-1.5in | 1.5 in lever 119 long with a D-flat bore | STEP · STL |
| butterfly-body-half-2in | 2 in body half (two per valve): clamp face, Ø88 body, seat counterbore, half the Ø6.4 stem bore, four M5 holes on r 38.0 | STEP · STL |
| butterfly-seat-2in | 2 in seat ring Ø59.5 × Ø47.50 × 3 with the stem holes (flexible material) | STEP · STL |
| butterfly-disc-2in | 2 in disc Ø47.50 (= the bore) × 4 on a D-flat Ø6 stem bore | STEP · STL |
| butterfly-stem-2in | 2 in stem Ø6 × 128 with a 1.0 D-flat | STEP · STL |
| butterfly-handle-2in | 2 in lever 141 long with a D-flat bore | STEP · STL |
| butterfly-body-half-2.5in | 2.5 in body half (two per valve): clamp face, Ø102 body, seat counterbore, half the Ø6.4 stem bore, four M5 holes on r 44.8 | STEP · STL |
| butterfly-seat-2.5in | 2.5 in seat ring Ø72.2 × Ø60.20 × 3 with the stem holes (flexible material) | STEP · STL |
| butterfly-disc-2.5in | 2.5 in disc Ø60.20 (= the bore) × 6 on a D-flat Ø6 stem bore | STEP · STL |
| butterfly-stem-2.5in | 2.5 in stem Ø6 × 142 with a 1.0 D-flat | STEP · STL |
| butterfly-handle-2.5in | 2.5 in lever 162 long with a D-flat bore | STEP · STL |
| butterfly-body-half-3in | 3 in body half (two per valve): clamp face, Ø115 body, seat counterbore, half the Ø6.4 stem bore, four M5 holes on r 51.5 | STEP · STL |
| butterfly-seat-3in | 3 in seat ring Ø84.9 × Ø72.90 × 3 with the stem holes (flexible material) | STEP · STL |
| butterfly-disc-3in | 3 in disc Ø72.90 (= the bore) × 6 on a D-flat Ø6 stem bore | STEP · STL |
| butterfly-stem-3in | 3 in stem Ø6 × 155 with a 1.0 D-flat | STEP · STL |
| butterfly-handle-3in | 3 in lever 184 long with a D-flat bore | STEP · STL |
| butterfly-body-half-4in | 4 in body half (two per valve): clamp face, Ø143 body, seat counterbore, half the Ø6.4 stem bore, four M5 holes on r 65.5 | STEP · STL |
| butterfly-seat-4in | 4 in seat ring Ø109.4 × Ø97.38 × 3 with the stem holes (flexible material) | STEP · STL |
| butterfly-disc-4in | 4 in disc Ø97.38 (= the bore) × 6 on a D-flat Ø6 stem bore | STEP · STL |
| butterfly-stem-4in | 4 in stem Ø6 × 183 with a 1.0 D-flat | STEP · STL |
| butterfly-handle-4in | 4 in lever 229 long with a D-flat bore | STEP · STL |
Plain text: sheet.txt · JSON: /api/geometry?object=tri-clamp-butterfly-valves
Fits with
Questions
What holds it together?
Four M5 bolts through both body halves; the clamp faces then go into the line with standard clamps and gaskets.