{
 "version": "2026-10-20",
 "license": "Dimension sheets are written by Xem Studio from the cited sources and are free to use (CC BY 4.0, attribute 'Xem Studio'). Linked files belong to their publishers under the license shown; Xem Studio does not host them. 'license_verified: false' means the license shown is from memory or the publisher's page as last read and should be confirmed at the link before commercial use.",
 "slug": "tri-clamp-dip-tube-caps",
 "name": "Tri-clamp dip-tube caps: 1½ and 2 in, ⅜ in tube 6 to 24 in long",
 "kind": "hardware",
 "category": "Hardware",
 "group": "Sanitary clamp fittings",
 "year": null,
 "question": "How do I pull liquid out of the bottom of a tri-clamp vessel from the top?",
 "tags": [
  "dip tube",
  "transfer",
  "racking",
  "sanitary",
  "tri-clamp",
  "clamp fitting",
  "brewing",
  "homebrew"
 ],
 "aliases": [
  "tri clamp dip tube",
  "fermenter dip tube",
  "tri clamp racking cane"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 10,
 "url": "https://xemstudio.com/objects/tri-clamp-dip-tube-caps/",
 "sheet_txt": "https://xemstudio.com/objects/tri-clamp-dip-tube-caps/sheet.txt",
 "sheet": {
  "basis": "Xem Studio design: the standard solid cap with a ⅜ in (9.53 × 1.2 wall) dip tube below and a ⅜ in hose barb (14MPHR barb profile) above",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Transfer or sample from the bottom through the lid: push gas in another port and the liquid rises up the tube. For a 6 × 18 in vessel pick the 16 in tube (clears a dished bottom); 18 in reaches the floor.",
   "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."
  ],
  "table": {
   "columns": [
    "clamp",
    "tube_in",
    "tube_mm"
   ],
   "rows": [
    [
     "1–1½",
     6,
     152.4
    ],
    [
     "1–1½",
     12,
     304.8
    ],
    [
     "1–1½",
     16,
     406.4
    ],
    [
     "1–1½",
     18,
     457.2
    ],
    [
     "1–1½",
     24,
     609.6
    ],
    [
     "2",
     6,
     152.4
    ],
    [
     "2",
     12,
     304.8
    ],
    [
     "2",
     16,
     406.4
    ],
    [
     "2",
     18,
     457.2
    ],
    [
     "2",
     24,
     609.6
    ]
   ]
  }
 },
 "sheet_text": "Tri-clamp dip-tube caps: 1½ and 2 in, ⅜ in tube 6 to 24 in long — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/tri-clamp-dip-tube-caps/  (CC BY 4.0)\nBasis: Xem Studio design: the standard solid cap with a ⅜ in (9.53 × 1.2 wall) dip tube below and a ⅜ in hose barb (14MPHR barb profile) above\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Transfer or sample from the bottom through the lid: push gas in another port and the liquid rises up the tube. For a 6 × 18 in vessel pick the 16 in tube (clears a dished bottom); 18 in reaches the floor.\n- 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.\n\nclamp  tube_in  tube_mm\n1–1½  6  152.4\n1–1½  12  304.8\n1–1½  16  406.4\n1–1½  18  457.2\n1–1½  24  609.6\n2  6  152.4\n2  12  304.8\n2  16  406.4\n2  18  457.2\n2  24  609.6\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- 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 — https://www.gwkent.com/triclamp-guide\n- Dixon: 14MPHR brewery hose barb: A and barb OD B (hose ID + 0.040 in) per size, ½ to 6 in — PDF — publisher's catalogue; dimensions cited — https://www.cooneybrothers.com/userfiles/ad/documents/Dixon_Sanitary_14MPHRG600_Catalog.pdf\n- 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) — PDF — maker chart; dimensions are facts [verify license at link] — https://shop.andersonprocess.com/media/assets/product/documents/rubber-fab-tri-clamp-dimensions.pdf\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 10 parts): https://xemstudio.com/files/hardware/tri-clamp-dip-tube-caps/index.json\nAPI: https://xemstudio.com/api/geometry?object=tri-clamp-dip-tube-caps\n",
 "sources": [
  {
   "publisher": "GW Kent",
   "title": "Tri-clamp fittings guide: tube OD, flange OD and ID per size to 12 in; solid cap thickness",
   "url": "https://www.gwkent.com/triclamp-guide",
   "formats": [
    "web"
   ],
   "license": "publisher's guide; dimensions cited",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Dixon",
   "title": "14MPHR brewery hose barb: A and barb OD B (hose ID + 0.040 in) per size, ½ to 6 in",
   "url": "https://www.cooneybrothers.com/userfiles/ad/documents/Dixon_Sanitary_14MPHRG600_Catalog.pdf",
   "formats": [
    "PDF"
   ],
   "license": "publisher's catalogue; dimensions cited",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Rubber Fab",
   "title": "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)",
   "url": "https://shop.andersonprocess.com/media/assets/product/documents/rubber-fab-tri-clamp-dimensions.pdf",
   "formats": [
    "PDF"
   ],
   "license": "maker chart; dimensions are facts",
   "license_verified": false,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "tri-clamp-dished-bottom-vessels",
  "tri-clamp-ported-end-caps",
  "tri-clamp-racking-arms"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no printing tolerance)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no printing tolerance. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn.",
 "mating": [],
 "faq": [
  {
   "q": "Which length for a 6 × 18 in vessel?",
   "a": "16 in clears the dished bottom; use 18 in only with the round bottom."
  }
 ],
 "files_license": null,
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   "file": "dip-tube-cap-1.5in-6in",
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   "stl": "https://xemstudio.com/files/hardware/tri-clamp-dip-tube-caps/dip-tube-cap-1.5in-6in.stl",
   "note": "1–1½ in cap with a ⅜ in (Ø9.53) dip tube 6 in below the face and a ⅜ in hose barb outside"
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   "file": "dip-tube-cap-1.5in-12in",
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   "stl": "https://xemstudio.com/files/hardware/tri-clamp-dip-tube-caps/dip-tube-cap-1.5in-12in.stl",
   "note": "1–1½ in cap with a ⅜ in (Ø9.53) dip tube 12 in below the face and a ⅜ in hose barb outside"
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   "stl": "https://xemstudio.com/files/hardware/tri-clamp-dip-tube-caps/dip-tube-cap-1.5in-16in.stl",
   "note": "1–1½ in cap with a ⅜ in (Ø9.53) dip tube 16 in below the face and a ⅜ in hose barb outside"
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   "stl": "https://xemstudio.com/files/hardware/tri-clamp-dip-tube-caps/dip-tube-cap-1.5in-18in.stl",
   "note": "1–1½ in cap with a ⅜ in (Ø9.53) dip tube 18 in below the face and a ⅜ in hose barb outside"
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   "stl": "https://xemstudio.com/files/hardware/tri-clamp-dip-tube-caps/dip-tube-cap-2in-6in.stl",
   "note": "2 in cap with a ⅜ in (Ø9.53) dip tube 6 in below the face and a ⅜ in hose barb outside"
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   "stl": "https://xemstudio.com/files/hardware/tri-clamp-dip-tube-caps/dip-tube-cap-2in-16in.stl",
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   "file": "dip-tube-cap-2in-18in",
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   "stl": "https://xemstudio.com/files/hardware/tri-clamp-dip-tube-caps/dip-tube-cap-2in-18in.stl",
   "note": "2 in cap with a ⅜ in (Ø9.53) dip tube 18 in below the face and a ⅜ in hose barb outside"
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  {
   "file": "dip-tube-cap-2in-24in",
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   "stl": "https://xemstudio.com/files/hardware/tri-clamp-dip-tube-caps/dip-tube-cap-2in-24in.stl",
   "note": "2 in cap with a ⅜ in (Ø9.53) dip tube 24 in below the face and a ⅜ in hose barb outside"
  }
 ],
 "markdown": "https://xemstudio.com/objects/tri-clamp-dip-tube-caps/index.md"
}