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Tri-clamp in-line sight glasses: 1½ to 4 in, 2, 4 and 6 in glass
How is a tri-clamp sight glass built? · Hardware · basis: Xem Studio design: two clamp-face end pieces hold a glass tube (bore = the line bore) in counterbores on flat gaskets, pulled together by four M5 tie rods
Exact dimensions. True size, with no printing tolerance added.
- sizes
- 12 in table
Notes
- A full-bore window in a line or on a vessel outlet: see the wort run off, the level or the colour. Glass tube: bore = the line bore, wall 3 (1½ and 2 in) or 4 (3 and 4 in). Face to face = two end pieces less the seats plus the glass.
- 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 | glass_in | glass_od_mm | glass_id_mm | face_to_face_mm | tie_rods |
|---|---|---|---|---|---|
| 1.5 | 2 | 40.8 | 34.8 | 98.8 | 4 × M5 × 111 |
| 1.5 | 4 | 40.8 | 34.8 | 149.6 | 4 × M5 × 162 |
| 1.5 | 6 | 40.8 | 34.8 | 200.4 | 4 × M5 × 212 |
| 2 | 2 | 53.5 | 47.5 | 98.8 | 4 × M5 × 111 |
| 2 | 4 | 53.5 | 47.5 | 149.6 | 4 × M5 × 162 |
| 2 | 6 | 53.5 | 47.5 | 200.4 | 4 × M5 × 212 |
| 3 | 2 | 80.9 | 72.9 | 98.8 | 4 × M5 × 111 |
| 3 | 4 | 80.9 | 72.9 | 149.6 | 4 × M5 × 162 |
| 3 | 6 | 80.9 | 72.9 | 200.4 | 4 × M5 × 212 |
| 4 | 2 | 105.4 | 97.4 | 98.8 | 4 × M5 × 111 |
| 4 | 4 | 105.4 | 97.4 | 149.6 | 4 × M5 × 162 |
| 4 | 6 | 105.4 | 97.4 | 200.4 | 4 × M5 × 212 |
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 20 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json
| sight-glass-end-1.5in | 1.5 in sight-glass end piece (two per sight glass): clamp face, Ø64.8 body 30.0 long, glass seat Ø40.8 × 6.0, four Ø5.5 tie-rod holes on r 26.4 | STEP · STL |
| sight-glass-tube-1.5in-2in | 1.5 in glass tube Ø40.8 × Ø34.8 × 50.8: sight glass 98.8 face to face with two end pieces | STEP · STL |
| sight-glass-tube-1.5in-4in | 1.5 in glass tube Ø40.8 × Ø34.8 × 101.6: sight glass 149.6 face to face with two end pieces | STEP · STL |
| sight-glass-tube-1.5in-6in | 1.5 in glass tube Ø40.8 × Ø34.8 × 152.4: sight glass 200.4 face to face with two end pieces | STEP · STL |
| sight-glass-seat-gasket-1.5in | 1.5 in flat seat gasket Ø40.8 × Ø34.8 × 1.5, one in each end seat | STEP · STL |
| sight-glass-end-2in | 2 in sight-glass end piece (two per sight glass): clamp face, Ø77.5 body 30.0 long, glass seat Ø53.5 × 6.0, four Ø5.5 tie-rod holes on r 32.8 | STEP · STL |
| sight-glass-tube-2in-2in | 2 in glass tube Ø53.5 × Ø47.5 × 50.8: sight glass 98.8 face to face with two end pieces | STEP · STL |
| sight-glass-tube-2in-4in | 2 in glass tube Ø53.5 × Ø47.5 × 101.6: sight glass 149.6 face to face with two end pieces | STEP · STL |
| sight-glass-tube-2in-6in | 2 in glass tube Ø53.5 × Ø47.5 × 152.4: sight glass 200.4 face to face with two end pieces | STEP · STL |
| sight-glass-seat-gasket-2in | 2 in flat seat gasket Ø53.5 × Ø47.5 × 1.5, one in each end seat | STEP · STL |
| sight-glass-end-3in | 3 in sight-glass end piece (two per sight glass): clamp face, Ø104.9 body 30.0 long, glass seat Ø80.9 × 6.0, four Ø5.5 tie-rod holes on r 46.5 | STEP · STL |
| sight-glass-tube-3in-2in | 3 in glass tube Ø80.9 × Ø72.9 × 50.8: sight glass 98.8 face to face with two end pieces | STEP · STL |
| sight-glass-tube-3in-4in | 3 in glass tube Ø80.9 × Ø72.9 × 101.6: sight glass 149.6 face to face with two end pieces | STEP · STL |
| sight-glass-tube-3in-6in | 3 in glass tube Ø80.9 × Ø72.9 × 152.4: sight glass 200.4 face to face with two end pieces | STEP · STL |
| sight-glass-seat-gasket-3in | 3 in flat seat gasket Ø80.9 × Ø72.9 × 1.5, one in each end seat | STEP · STL |
| sight-glass-end-4in | 4 in sight-glass end piece (two per sight glass): clamp face, Ø129.4 body 30.0 long, glass seat Ø105.4 × 6.0, four Ø5.5 tie-rod holes on r 58.7 | STEP · STL |
| sight-glass-tube-4in-2in | 4 in glass tube Ø105.4 × Ø97.4 × 50.8: sight glass 98.8 face to face with two end pieces | STEP · STL |
| sight-glass-tube-4in-4in | 4 in glass tube Ø105.4 × Ø97.4 × 101.6: sight glass 149.6 face to face with two end pieces | STEP · STL |
| sight-glass-tube-4in-6in | 4 in glass tube Ø105.4 × Ø97.4 × 152.4: sight glass 200.4 face to face with two end pieces | STEP · STL |
| sight-glass-seat-gasket-4in | 4 in flat seat gasket Ø105.4 × Ø97.4 × 1.5, one in each end seat | STEP · STL |
Plain text: sheet.txt · JSON: /api/geometry?object=tri-clamp-sight-glasses
Fits with
Questions
What holds the glass?
Each end piece's counterbore with a flat gasket; four M5 rods squeeze the two ends onto the glass.