{
 "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": "sanitary-clamp-end-caps",
 "name": "Sanitary clamp end caps (16AMP): ½ to 4 in",
 "kind": "standard",
 "category": "Hardware",
 "group": "Sanitary clamp fittings",
 "year": null,
 "question": "What are the dimensions of a tri-clamp end cap for each size?",
 "tags": [
  "end cap",
  "16amp",
  "tri-clamp",
  "sanitary",
  "cap"
 ],
 "aliases": [
  "tri clamp cap",
  "16amp cap dimensions",
  "sanitary end cap 2 inch",
  "tri clamp blank cap stl"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 6,
 "url": "https://xemstudio.com/objects/sanitary-clamp-end-caps/",
 "sheet_txt": "https://xemstudio.com/objects/sanitary-clamp-end-caps/sheet.txt",
 "sheet": {
  "basis": "ASME BPE / 3-A clamp-fitting dimensions published identically by Dixon and Steel & O'Brien; ISO 2852 face profile",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "A solid end cap (16AMP) with the ISO 2852 face. Caps go by flange, not tube: one cap closes both ½ and ¾ in (Ø25.0), one closes both 1 and 1½ in (Ø50.5).",
   "Thickness: 4.78 mm (0.188 in) on the Ø25.0 cap, 6.35 mm (0.25 in) on Ø50.5 to Ø91.0, 7.92 mm (0.312 in) on the 4 in Ø119.0 cap.",
   "Faces are the ISO 2852 profile (2.85 mm rim, 1.6 mm gasket recess, 20° back cone run on from the rim to the flat back, as on a ferrule) 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.",
   "The 6 mm cap the tri-clamp engine heads are built on is a separate page (tri-clamp-end-cap)."
  ],
  "table": {
   "columns": [
    "file",
    "flange_od_mm",
    "groove_mm",
    "thickness_mm"
   ],
   "rows": [
    [
     "cap-0.5–0.75in",
     25,
     18,
     4.78
    ],
    [
     "cap-1–1.5in",
     50.5,
     43.5,
     6.35
    ],
    [
     "cap-2in",
     64,
     56.5,
     6.35
    ],
    [
     "cap-2.5in",
     77.5,
     70.5,
     6.35
    ],
    [
     "cap-3in",
     91,
     83.5,
     6.35
    ],
    [
     "cap-4in",
     119,
     111.5,
     7.92
    ]
   ]
  }
 },
 "sheet_text": "Sanitary clamp end caps (16AMP): ½ to 4 in — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/sanitary-clamp-end-caps/  (CC BY 4.0)\nBasis: ASME BPE / 3-A clamp-fitting dimensions published identically by Dixon and Steel & O'Brien; ISO 2852 face profile\nCatalog version: 2026-10-20\n\nSizes: see table below\n- A solid end cap (16AMP) with the ISO 2852 face. Caps go by flange, not tube: one cap closes both ½ and ¾ in (Ø25.0), one closes both 1 and 1½ in (Ø50.5).\n- Thickness: 4.78 mm (0.188 in) on the Ø25.0 cap, 6.35 mm (0.25 in) on Ø50.5 to Ø91.0, 7.92 mm (0.312 in) on the 4 in Ø119.0 cap.\n- Faces are the ISO 2852 profile (2.85 mm rim, 1.6 mm gasket recess, 20° back cone run on from the rim to the flat back, as on a ferrule) 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.\n- The 6 mm cap the tri-clamp engine heads are built on is a separate page (tri-clamp-end-cap).\n\nfile  flange_od_mm  groove_mm  thickness_mm\ncap-0.5–0.75in  25.0  18.0  4.78\ncap-1–1.5in  50.5  43.5  6.35\ncap-2in  64.0  56.5  6.35\ncap-2.5in  77.5  70.5  6.35\ncap-3in  91.0  83.5  6.35\ncap-4in  119.0  111.5  7.92\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- ASME: BPE Bioprocessing Equipment (clamp fitting dimensions, tube OD and wall) — standard — ASME; dimensions are facts [verify license at link] — https://www.asme.org/codes-standards/find-codes-standards/bpe-bioprocessing-equipment\n- ISO (via iTeh sample): ISO 2852 clamp liners: face profile and flange / groove diameters — PDF — standard excerpt; dimensions are facts — https://cdn.standards.iteh.ai/samples/7850/eb49c396488d408c8ced3e2961d76cf3/ISO-2852-1974.pdf\n- Dixon Sanitary: Clamp elbows, ferrules: dimension sheet — PDF — publisher's catalogue; dimensions cited, nothing copied — https://dixonvalve.com/en/media/1397776\n- Steel & O'Brien: Sanitary products catalog 2024 (clamp fittings dimension tables) — PDF — publisher's catalogue; dimensions cited, nothing copied — https://www.steelobrien.com/wp-content/uploads/2024/03/Sanitary-2024-FINAL.pdf\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 6 parts): https://xemstudio.com/files/hardware/sanitary-clamp-end-caps/index.json\nAPI: https://xemstudio.com/api/geometry?object=sanitary-clamp-end-caps\n",
 "sources": [
  {
   "publisher": "ASME",
   "title": "BPE Bioprocessing Equipment (clamp fitting dimensions, tube OD and wall)",
   "url": "https://www.asme.org/codes-standards/find-codes-standards/bpe-bioprocessing-equipment",
   "formats": [
    "standard"
   ],
   "license": "ASME; dimensions are facts",
   "license_verified": false,
   "hosted": false
  },
  {
   "publisher": "ISO (via iTeh sample)",
   "title": "ISO 2852 clamp liners: face profile and flange / groove diameters",
   "url": "https://cdn.standards.iteh.ai/samples/7850/eb49c396488d408c8ced3e2961d76cf3/ISO-2852-1974.pdf",
   "formats": [
    "PDF"
   ],
   "license": "standard excerpt; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Dixon Sanitary",
   "title": "Clamp elbows, ferrules: dimension sheet",
   "url": "https://dixonvalve.com/en/media/1397776",
   "formats": [
    "PDF"
   ],
   "license": "publisher's catalogue; dimensions cited, nothing copied",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Steel & O'Brien",
   "title": "Sanitary products catalog 2024 (clamp fittings dimension tables)",
   "url": "https://www.steelobrien.com/wp-content/uploads/2024/03/Sanitary-2024-FINAL.pdf",
   "formats": [
    "PDF"
   ],
   "license": "publisher's catalogue; dimensions cited, nothing copied",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "sanitary-clamp-ferrules",
  "sanitary-clamp-gaskets",
  "sanitary-clamp-spools",
  "tri-clamp-end-cap",
  "tri-clamp-clamps",
  "sanitary-clamp-tees"
 ],
 "fits": [
  {
   "role": "Goes in or on",
   "items": [
    {
     "slug": "sanitary-clamp-ferrules",
     "why": "closes a ferrule face of the same flange"
    }
   ]
  },
  {
   "role": "Alternatives",
   "items": [
    {
     "slug": "tri-clamp-end-cap",
     "why": "6 mm cap, 1.5 and 2 in"
    }
   ]
  },
  {
   "role": "Also needed",
   "items": [
    {
     "slug": "sanitary-clamp-gaskets",
     "why": "Type B gasket between the faces"
    },
    {
     "slug": "tri-clamp-clamps",
     "why": "clamp over the joint"
    }
   ]
  }
 ],
 "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": [
  {
   "feature": "clamp faces",
   "exact": "ISO 2852 / BPE flange",
   "mates": "clamp + Type B gasket",
   "fit": "clamp",
   "files": "all"
  }
 ],
 "fit_classes": {
  "press": "stays put: pin, tube, bearing or magnet held by interference. Typical FDM: hole +0.0 to +0.1 mm on diameter.",
  "slide": "assembles by hand and is held by a grub, pinch or clamp: shaft in a hub, rod in a socket, spigot in a bore. Typical FDM: +0.2 mm.",
  "run": "turns or slides in use: pin in a link, rod through a guide. Typical FDM: +0.3 mm.",
  "socket": "large sliding fit: syringe barrel, sleeve, bobbin in a bore. Typical FDM: +0.3 mm.",
  "clamp": "split part that closes on the mating part with screws: make it at size.",
  "designed": "a gap that is part of the design (piston fit option, displacer gap, air gap): do not change."
 },
 "faq": [
  {
   "q": "How thick is a 2 inch tri-clamp end cap?",
   "a": "6.35 mm (0.25 in) on the Ø64.0 flange."
  },
  {
   "q": "Does a 1 inch cap fit a 1½ inch ferrule?",
   "a": "Yes: both use the Ø50.5 flange, so one cap closes either."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "cap-0.5–0.75in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/cap-0.5–0.75in.step",
   "stl": "https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/cap-0.5–0.75in.stl",
   "note": "solid end cap (16AMP) for 0.5–0.75 in: Ø25 × 4.78 mm"
  },
  {
   "file": "cap-1–1.5in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/cap-1–1.5in.step",
   "stl": "https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/cap-1–1.5in.stl",
   "note": "solid end cap (16AMP) for 1–1.5 in: Ø50.5 × 6.35 mm"
  },
  {
   "file": "cap-2in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/cap-2in.step",
   "stl": "https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/cap-2in.stl",
   "note": "solid end cap (16AMP) for 2 in: Ø64 × 6.35 mm"
  },
  {
   "file": "cap-2.5in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/cap-2.5in.step",
   "stl": "https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/cap-2.5in.stl",
   "note": "solid end cap (16AMP) for 2.5 in: Ø77.5 × 6.35 mm"
  },
  {
   "file": "cap-3in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/cap-3in.step",
   "stl": "https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/cap-3in.stl",
   "note": "solid end cap (16AMP) for 3 in: Ø91 × 6.35 mm"
  },
  {
   "file": "cap-4in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/cap-4in.step",
   "stl": "https://xemstudio.com/files/hardware/sanitary-clamp-caps-ferrules-spools/cap-4in.stl",
   "note": "solid end cap (16AMP) for 4 in: Ø119 × 7.92 mm"
  }
 ],
 "markdown": "https://xemstudio.com/objects/sanitary-clamp-end-caps/index.md"
}