# Tri-clamp vessel, 12 in: closed-bottom pots 2 to 24 in deep (flat, dished, round)

> What sizes of 12 inch tri-clamp pot or closed-end spool are there?

- Category: Hardware › Tri-clamp vessels
- Kind: Hardware
- Basis: Xem Studio design: 12 in sanitary tube Ø304.8 × 3.40 with an ISO 2852 clamp face on top and a welded bottom — flat plate (tube-wall thick), flanged-and-dished (crown R = OD, knuckle 6 %) or hemispherical
- Page: https://xemstudio.com/objects/tri-clamp-vessel-12in/ · JSON: https://xemstudio.com/api/geometry?object=tri-clamp-vessel-12in · Plain text: https://xemstudio.com/objects/tri-clamp-vessel-12in/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); linked files under their publishers' licenses
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

**Exact dimensions.** True size, with no printing tolerance added.

## Notes

- A 12 in tri-clamp pot: one clamp face, closed bottom. Depth is measured from the clamp face to the outside of the bottom; capacity is to the face plane.
- Every size here is the actual size of the metal part, with no printing allowance. The printable 45° version is printable-tri-clamp-vessel-12in (not made: a 12 in flange is wider than a 256 mm print bed).
- Close it with any cap, dome lid or ported cap of the same size, a clamp and a gasket.
- 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

| depth_in | depth_mm | flat_L | dished_L | round_L |
|---|---|---|---|---|
| 2 | 50.8 | 3.31 | — | — |
| 3 | 76.2 | 5.08 | 3.72 | — |
| 4 | 101.6 | 6.85 | 5.49 | — |
| 6 | 152.4 | 10.39 | 9.04 | — |
| 8 | 203.2 | 13.93 | 12.58 | 10.47 |
| 10 | 254.0 | 17.48 | 16.12 | 14.01 |
| 12 | 304.8 | 21.02 | 19.67 | 17.56 |
| 18 | 457.2 | 31.65 | 30.3 | 28.19 |
| 24 | 609.6 | 42.28 | 40.92 | 38.81 |

## Where the files are

- ASME: [Flanged and dished (F&D) heads: crown radius = OD, knuckle radius 6 % of OD (BPVC Section VIII torispherical head)](https://www.asme.org/codes-standards/find-codes-standards/bpvc-viii-1-bpvc-section-viii-rules-for-construction-of-pressure-vessels-division-1) — standard — ASME; proportions are facts (verify at link)
- GW Kent: [Tri-clamp fittings guide: tube OD, flange OD and ID per size to 12 in; solid cap thickness](https://www.gwkent.com/triclamp-guide) — web — publisher's guide; dimensions cited
- Rubber Fab: [Tri-clamp dimensions chart (ID, OD, bead per clamp size, ½ to 12 in and DIN 32676)](https://shop.andersonprocess.com/media/assets/product/documents/rubber-fab-tri-clamp-dimensions.pdf) — PDF — publisher's chart; dimensions cited, nothing copied
- 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)](https://shop.andersonprocess.com/media/assets/product/documents/rubber-fab-tri-clamp-dimensions.pdf) — PDF — maker chart; dimensions are facts (verify at link)

## Free STEP/STL (22 parts, CC BY 4.0, Xem Studio)

Index: https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/index.json

- vessel-12in-x-2in-flat: [STEP](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-2in-flat.step) · [STL](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-2in-flat.stl) — 12 × 2 in, flat bottom: 50.8 mm face to bottom, holds 3.31 L to the face
- vessel-12in-x-3in-flat: [STEP](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-3in-flat.step) · [STL](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-3in-flat.stl) — 12 × 3 in, flat bottom: 76.2 mm face to bottom, holds 5.08 L to the face
- vessel-12in-x-3in-dished: [STEP](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-3in-dished.step) · [STL](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-3in-dished.stl) — 12 × 3 in, dished bottom: 76.2 mm face to bottom, holds 3.72 L to the face
- vessel-12in-x-4in-flat: [STEP](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-4in-flat.step) · [STL](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-4in-flat.stl) — 12 × 4 in, flat bottom: 101.6 mm face to bottom, holds 6.85 L to the face
- vessel-12in-x-4in-dished: [STEP](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-4in-dished.step) · [STL](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-4in-dished.stl) — 12 × 4 in, dished bottom: 101.6 mm face to bottom, holds 5.49 L to the face
- vessel-12in-x-6in-flat: [STEP](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-6in-flat.step) · [STL](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-6in-flat.stl) — 12 × 6 in, flat bottom: 152.4 mm face to bottom, holds 10.39 L to the face
- vessel-12in-x-6in-dished: [STEP](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-6in-dished.step) · [STL](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-6in-dished.stl) — 12 × 6 in, dished bottom: 152.4 mm face to bottom, holds 9.04 L to the face
- vessel-12in-x-8in-flat: [STEP](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-8in-flat.step) · [STL](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-8in-flat.stl) — 12 × 8 in, flat bottom: 203.2 mm face to bottom, holds 13.93 L to the face
- vessel-12in-x-8in-dished: [STEP](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-8in-dished.step) · [STL](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-8in-dished.stl) — 12 × 8 in, dished bottom: 203.2 mm face to bottom, holds 12.58 L to the face
- vessel-12in-x-8in-round: [STEP](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-8in-round.step) · [STL](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-8in-round.stl) — 12 × 8 in, round bottom: 203.2 mm face to bottom, holds 10.47 L to the face
- vessel-12in-x-10in-flat: [STEP](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-10in-flat.step) · [STL](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-10in-flat.stl) — 12 × 10 in, flat bottom: 254.0 mm face to bottom, holds 17.48 L to the face
- vessel-12in-x-10in-dished: [STEP](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-10in-dished.step) · [STL](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-10in-dished.stl) — 12 × 10 in, dished bottom: 254.0 mm face to bottom, holds 16.12 L to the face
- vessel-12in-x-10in-round: [STEP](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-10in-round.step) · [STL](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-10in-round.stl) — 12 × 10 in, round bottom: 254.0 mm face to bottom, holds 14.01 L to the face
- vessel-12in-x-12in-flat: [STEP](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-12in-flat.step) · [STL](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-12in-flat.stl) — 12 × 12 in, flat bottom: 304.8 mm face to bottom, holds 21.02 L to the face
- vessel-12in-x-12in-dished: [STEP](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-12in-dished.step) · [STL](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-12in-dished.stl) — 12 × 12 in, dished bottom: 304.8 mm face to bottom, holds 19.67 L to the face
- vessel-12in-x-12in-round: [STEP](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-12in-round.step) · [STL](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-12in-round.stl) — 12 × 12 in, round bottom: 304.8 mm face to bottom, holds 17.56 L to the face
- vessel-12in-x-18in-flat: [STEP](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-18in-flat.step) · [STL](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-18in-flat.stl) — 12 × 18 in, flat bottom: 457.2 mm face to bottom, holds 31.65 L to the face
- vessel-12in-x-18in-dished: [STEP](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-18in-dished.step) · [STL](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-18in-dished.stl) — 12 × 18 in, dished bottom: 457.2 mm face to bottom, holds 30.30 L to the face
- vessel-12in-x-18in-round: [STEP](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-18in-round.step) · [STL](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-18in-round.stl) — 12 × 18 in, round bottom: 457.2 mm face to bottom, holds 28.19 L to the face
- vessel-12in-x-24in-flat: [STEP](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-24in-flat.step) · [STL](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-24in-flat.stl) — 12 × 24 in, flat bottom: 609.6 mm face to bottom, holds 42.28 L to the face
- vessel-12in-x-24in-dished: [STEP](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-24in-dished.step) · [STL](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-24in-dished.stl) — 12 × 24 in, dished bottom: 609.6 mm face to bottom, holds 40.92 L to the face
- vessel-12in-x-24in-round: [STEP](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-24in-round.step) · [STL](https://xemstudio.com/files/hardware/tri-clamp-vessel-12in/vessel-12in-x-24in-round.stl) — 12 × 24 in, round bottom: 609.6 mm face to bottom, holds 38.81 L to the face

## Questions

**How much does a 12 × 12 in tri-clamp pot hold?**

21.02 L with a flat bottom.

**Which bottom should I choose?**

Flat stands on a bench; dished (F&D) is the usual tank bottom and stands on a ring; round drains to one point.

## Fits with

- [Tri-clamp vessel, 1½ in: closed-bottom pots 2 to 24 in deep (flat, dished, round)](https://xemstudio.com/objects/tri-clamp-vessel-1-5in/)
- [Tri-clamp vessel, 2 in: closed-bottom pots 2 to 24 in deep (flat, dished, round)](https://xemstudio.com/objects/tri-clamp-vessel-2in/)
- [Tri-clamp vessel, 3 in: closed-bottom pots 2 to 24 in deep (flat, dished, round)](https://xemstudio.com/objects/tri-clamp-vessel-3in/)
- [Tri-clamp vessel, 4 in: closed-bottom pots 2 to 24 in deep (flat, dished, round)](https://xemstudio.com/objects/tri-clamp-vessel-4in/)
- [Tri-clamp vessel, 6 in: closed-bottom pots 2 to 24 in deep (flat, dished, round)](https://xemstudio.com/objects/tri-clamp-vessel-6in/)
- [Tri-clamp dome lids: 1½ to 12 in, plain or with a port at the crown](https://xemstudio.com/objects/tri-clamp-dome-lids/)
- [Tri-clamp end caps with ports: NPT, clamp nozzle, hose barb and airlock hole, 1½ to 8 in](https://xemstudio.com/objects/tri-clamp-ported-end-caps/)