# Sanitary clamp weld ferrules, short and medium: ½ to 4 in

> What are the flange and tube dimensions of each tri-clamp ferrule size?

- Category: Hardware › Sanitary clamp fittings
- Kind: Standard part
- Basis: ASME BPE / 3-A clamp-fitting dimensions published identically by Dixon and Steel & O'Brien; ISO 2852 face profile
- Page: https://xemstudio.com/objects/sanitary-clamp-ferrules/ · JSON: https://xemstudio.com/api/geometry?object=sanitary-clamp-ferrules · Plain text: https://xemstudio.com/objects/sanitary-clamp-ferrules/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); linked files under their publishers' licenses

**Exact dimensions.** Every file is drawn at true size with no printing tolerance. The holes and pins that meet another part are listed below under Mating features, with the fit each joint needs; open those by your printer's or process's clearance before making the part.

## Notes

- A weld ferrule: one ISO 2852 face on a length of BPE tube. Short (14WMP) is 12.7 mm (0.5 in) long, medium (L14AM7) 28.6 mm (1.125 in).
- Tube OD 12.7 / 19.05 / 25.4 / 38.1 / 50.8 / 63.5 / 76.2 / 101.6 mm, wall 1.65 mm (4 in: 2.11).
- Flange: ½–¾ in share Ø25.0, 1–1½ in share Ø50.5, 2 in Ø64.0, 2½ in Ø77.5, 3 in Ø91.0, 4 in Ø119.0.
- Faces are the ISO 2852 profile (2.85 mm rim, 1.6 mm gasket recess, 20° back cone) on the BPE flange diameters; the groove diameter on ½, ¾ and 4 in is derived (flange − 7.0 / 7.5 mm), the rest is from the standard.

## Mating features (exact size; open press / slide / run / socket by your process clearance, leave designed and clamp as drawn)

| feature | exact | mates with | fit | files |
|---|---|---|---|---|
| clamp faces | ISO 2852 / BPE flange | clamp + Type B gasket | clamp | all |

## Sizes

| size_in | tube_od_mm | wall_mm | bore_mm | flange_od_mm | groove_mm | lengths_mm |
|---|---|---|---|---|---|---|
| ½ | 12.7 | 1.65 | 9.4 | 25.0 | 18.0 | 12.7 / 28.6 |
| ¾ | 19.05 | 1.65 | 15.75 | 25.0 | 18.0 | 12.7 / 28.6 |
| 1 | 25.4 | 1.65 | 22.1 | 50.5 | 43.5 | 12.7 / 28.6 |
| 1½ | 38.1 | 1.65 | 34.8 | 50.5 | 43.5 | 12.7 / 28.6 |
| 2 | 50.8 | 1.65 | 47.5 | 64.0 | 56.5 | 12.7 / 28.6 |
| 2½ | 63.5 | 1.65 | 60.2 | 77.5 | 70.5 | 12.7 / 28.6 |
| 3 | 76.2 | 1.65 | 72.9 | 91.0 | 83.5 | 12.7 / 28.6 |
| 4 | 101.6 | 2.11 | 97.38 | 119.0 | 111.5 | 12.7 / 28.6 |

## Where the files are

- ASME: [BPE Bioprocessing Equipment (clamp fitting dimensions, tube OD and wall)](https://www.asme.org/codes-standards/find-codes-standards/bpe-bioprocessing-equipment) — standard — ASME; dimensions are facts (verify at link)
- ISO (via iTeh sample): [ISO 2852 clamp liners: face profile and flange / groove diameters](https://cdn.standards.iteh.ai/samples/7850/eb49c396488d408c8ced3e2961d76cf3/ISO-2852-1974.pdf) — PDF — standard excerpt; dimensions are facts
- Dixon Sanitary: [Clamp elbows, ferrules: dimension sheet](https://dixonvalve.com/en/media/1397776) — PDF — publisher's catalogue; dimensions cited, nothing copied
- Steel & O'Brien: [Sanitary products catalog 2024 (clamp fittings dimension tables)](https://www.steelobrien.com/wp-content/uploads/2024/03/Sanitary-2024-FINAL.pdf) — PDF — publisher's catalogue; dimensions cited, nothing copied

## Free STEP/STL (16 parts, CC BY 4.0, Xem Studio)

Index: https://xemstudio.com/files/hardware/sanitary-clamp-ferrules/index.json

- ferrule-0.5in-12.7mm: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-0.5in-12.7mm.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-0.5in-12.7mm.stl) — ½ in short weld ferrule (14WMP), 0.5 in long
- ferrule-0.5in-28.6mm: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-0.5in-28.6mm.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-0.5in-28.6mm.stl) — ½ in medium weld ferrule (L14AM7), 1.125 in long
- ferrule-0.75in-12.7mm: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-0.75in-12.7mm.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-0.75in-12.7mm.stl) — ¾ in short weld ferrule (14WMP), 0.5 in long
- ferrule-0.75in-28.6mm: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-0.75in-28.6mm.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-0.75in-28.6mm.stl) — ¾ in medium weld ferrule (L14AM7), 1.125 in long
- ferrule-1in-12.7mm: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-1in-12.7mm.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-1in-12.7mm.stl) — 1 in short weld ferrule (14WMP), 0.5 in long
- ferrule-1in-28.6mm: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-1in-28.6mm.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-1in-28.6mm.stl) — 1 in medium weld ferrule (L14AM7), 1.125 in long
- ferrule-1.5in-12.7mm: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-1.5in-12.7mm.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-1.5in-12.7mm.stl) — 1½ in short weld ferrule (14WMP), 0.5 in long
- ferrule-1.5in-28.6mm: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-1.5in-28.6mm.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-1.5in-28.6mm.stl) — 1½ in medium weld ferrule (L14AM7), 1.125 in long
- ferrule-2in-12.7mm: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-2in-12.7mm.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-2in-12.7mm.stl) — 2 in short weld ferrule (14WMP), 0.5 in long
- ferrule-2in-28.6mm: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-2in-28.6mm.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-2in-28.6mm.stl) — 2 in medium weld ferrule (L14AM7), 1.125 in long
- ferrule-2.5in-12.7mm: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-2.5in-12.7mm.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-2.5in-12.7mm.stl) — 2½ in short weld ferrule (14WMP), 0.5 in long
- ferrule-2.5in-28.6mm: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-2.5in-28.6mm.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-2.5in-28.6mm.stl) — 2½ in medium weld ferrule (L14AM7), 1.125 in long
- ferrule-3in-12.7mm: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-3in-12.7mm.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-3in-12.7mm.stl) — 3 in short weld ferrule (14WMP), 0.5 in long
- ferrule-3in-28.6mm: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-3in-28.6mm.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-3in-28.6mm.stl) — 3 in medium weld ferrule (L14AM7), 1.125 in long
- ferrule-4in-12.7mm: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-4in-12.7mm.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-4in-12.7mm.stl) — 4 in short weld ferrule (14WMP), 0.5 in long
- ferrule-4in-28.6mm: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-4in-28.6mm.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/ferrule-4in-28.6mm.stl) — 4 in medium weld ferrule (L14AM7), 1.125 in long

## How it fits

### Connects to
- [Sanitary clamp end caps (16AMP): ½ to 4 in](https://xemstudio.com/objects/sanitary-clamp-end-caps/): cap on the face
- [Sanitary clamp tees and short-outlet tees (7MP, 7MPS): ½ to 4 in](https://xemstudio.com/objects/sanitary-clamp-tees/): any fitting with the same flange

### Alternatives
- [Tri-clamp (Tri-Clover) sanitary ferrule, 1/2 to 4 inch](https://xemstudio.com/objects/tri-clamp-ferrule/): the original 1–3 in ferrules

### Also needed
- [Sanitary clamp gaskets, ISO 2852 Type B: ½ to 4 in](https://xemstudio.com/objects/sanitary-clamp-gaskets/): Type B gasket per joint
- [Tri-clamp clamp, two-bolt: every flange size ½ to 4 in](https://xemstudio.com/objects/tri-clamp-clamps/): clamp per joint

## Questions

**What is the flange diameter of a 2 inch tri-clamp?**

64.0 mm; 1 and 1½ in share 50.5, ½ and ¾ in share 25.0, 2½ in 77.5, 3 in 91.0, 4 in 119.0.

**Is a 1½ inch tri-clamp the same as a 1 inch?**

Same Ø50.5 flange and clamp, different tube: 38.1 vs 25.4 mm OD.

**What is the wall of sanitary tube?**

1.65 mm (0.065 in) from ½ to 3 in; 2.11 mm (0.083 in) at 4 in.

## Fits with

- [Sanitary clamp spools: 3, 6 and 12 in, ½ to 4 in](https://xemstudio.com/objects/sanitary-clamp-spools/)
- [Sanitary clamp end caps (16AMP): ½ to 4 in](https://xemstudio.com/objects/sanitary-clamp-end-caps/)
- [Sanitary clamp gaskets, ISO 2852 Type B: ½ to 4 in](https://xemstudio.com/objects/sanitary-clamp-gaskets/)
- [Tri-clamp (Tri-Clover) sanitary ferrule, 1/2 to 4 inch](https://xemstudio.com/objects/tri-clamp-ferrule/)
- [Tri-clamp clamp, two-bolt: every flange size ½ to 4 in](https://xemstudio.com/objects/tri-clamp-clamps/)