# Sanitary clamp crosses (9MP): ½ to 4 in

> What are the dimensions of a 2 inch tri-clamp cross?

- 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-crosses/ · JSON: https://xemstudio.com/api/geometry?object=sanitary-clamp-crosses · Plain text: https://xemstudio.com/objects/sanitary-clamp-crosses/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 cross (9MP): a run with two opposite branches of the same size, four faces in all. Run face to face B, each branch centre to face A.
- From ¾ in up the cross has the same run and branch lengths as the equal tee of that size; the ½ in cross is longer (114.3 run, 57.1 branch) than the ½ in tee.
- 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 to any fitting of the same size | clamp | all |

## Sizes

| size_in | run_face_to_face_mm | branch_centre_to_face_mm |
|---|---|---|
| ½ | 114.3 | 57.1 |
| ¾ | 120.6 | 60.3 |
| 1 | 120.6 | 60.3 |
| 1½ | 139.7 | 69.8 |
| 2 | 177.8 | 88.9 |
| 2½ | 177.8 | 88.9 |
| 3 | 190.5 | 95.2 |
| 4 | 228.6 | 114.3 |

## 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 (8 parts, CC BY 4.0, Xem Studio)

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

- cross-0.5in: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-tees-crosses/cross-0.5in.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-tees-crosses/cross-0.5in.stl) — ½ in cross (9MP): run 4.5 in face to face, branches 2.25 in centre to face
- cross-0.75in: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-tees-crosses/cross-0.75in.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-tees-crosses/cross-0.75in.stl) — ¾ in cross (9MP): run 4.75 in face to face, branches 2.375 in centre to face
- cross-1in: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-tees-crosses/cross-1in.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-tees-crosses/cross-1in.stl) — 1 in cross (9MP): run 4.75 in face to face, branches 2.375 in centre to face
- cross-1.5in: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-tees-crosses/cross-1.5in.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-tees-crosses/cross-1.5in.stl) — 1½ in cross (9MP): run 5.5 in face to face, branches 2.75 in centre to face
- cross-2in: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-tees-crosses/cross-2in.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-tees-crosses/cross-2in.stl) — 2 in cross (9MP): run 7.0 in face to face, branches 3.5 in centre to face
- cross-2.5in: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-tees-crosses/cross-2.5in.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-tees-crosses/cross-2.5in.stl) — 2½ in cross (9MP): run 7.0 in face to face, branches 3.5 in centre to face
- cross-3in: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-tees-crosses/cross-3in.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-tees-crosses/cross-3in.stl) — 3 in cross (9MP): run 7.5 in face to face, branches 3.75 in centre to face
- cross-4in: [STEP](https://xemstudio.com/files/hardware/sanitary-clamp-tees-crosses/cross-4in.step) · [STL](https://xemstudio.com/files/hardware/sanitary-clamp-tees-crosses/cross-4in.stl) — 4 in cross (9MP): run 9.0 in face to face, branches 4.5 in centre to face

## How it fits

### Connects to
- [Sanitary clamp spools: 3, 6 and 12 in, ½ to 4 in](https://xemstudio.com/objects/sanitary-clamp-spools/): spools on each face
- [Sanitary clamp end caps (16AMP): ½ to 4 in](https://xemstudio.com/objects/sanitary-clamp-end-caps/): cap unused branches

### Alternatives
- [Sanitary clamp tees and short-outlet tees (7MP, 7MPS): ½ to 4 in](https://xemstudio.com/objects/sanitary-clamp-tees/): one branch

### Also needed
- [Tri-clamp clamp, two-bolt: every flange size ½ to 4 in](https://xemstudio.com/objects/tri-clamp-clamps/): clamp and gasket per face

## Questions

**How long is a 2 inch tri-clamp cross?**

177.8 mm (7.0 in) face to face on the run, 88.9 mm centre to each branch face.

**Is a cross the same size as a tee?**

From ¾ to 4 in yes, run and branch match the equal tee; at ½ in the cross is 114.3 mm on the run against 63.5 for the tee.

## Fits with

- [Sanitary clamp tees and short-outlet tees (7MP, 7MPS): ½ to 4 in](https://xemstudio.com/objects/sanitary-clamp-tees/)
- [Sanitary clamp end caps (16AMP): ½ to 4 in](https://xemstudio.com/objects/sanitary-clamp-end-caps/)
- [Sanitary clamp elbows, 90° and 45°, ½ to 4 in (tri-clamp style, BPE)](https://xemstudio.com/objects/sanitary-clamp-elbows/)
- [Tri-clamp clamp, two-bolt: every flange size ½ to 4 in](https://xemstudio.com/objects/tri-clamp-clamps/)