{
 "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-gasket",
 "name": "Tri-clamp gasket, ISO 2852 Type B: 1.5 and 2 in",
 "kind": "hardware",
 "category": "Stirling engines",
 "group": "Tri-clamp engine parts",
 "year": null,
 "question": "What are the dimensions of a 2 inch tri-clamp gasket?",
 "tags": [
  "tri-clamp",
  "gasket",
  "type b",
  "iso 2852",
  "sanitary",
  "stirling"
 ],
 "aliases": [
  "tri clamp gasket",
  "sanitary gasket 2 inch",
  "tri clamp gasket dimensions",
  "type b gasket"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": true,
 "free_files": 2,
 "url": "https://xemstudio.com/objects/tri-clamp-gasket/",
 "sheet_txt": "https://xemstudio.com/objects/tri-clamp-gasket/sheet.txt",
 "sheet": {
  "basis": "ISO 2852 Type B profile: bead U 5.5, web T1 1.7, lip 1.1 thick projecting ±2.8 into the bore; measured from the files",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "The Type B gasket between two ISO 2852 faces: a 5.5 mm bead that fills both face recesses, a 1.7 mm web on the lands, and an inner lip into the bore.",
   "2 in: OD Ø63.0, bead out to Ø56.5 (the groove diameter), lip ID Ø45.3. 1.5 in: OD Ø49.5, bead to Ø43.5, lip ID Ø32.6. The lip is 1.1 mm thick radially and stands 2.8 mm each side of the centre plane (5.6 overall).",
   "The sanitary-clamp gasket page carries the same profile for every size ½ to 4 in, with the bead 0.2 mm inside the groove diameter on radius."
  ],
  "table": {
   "columns": [
    "size_in",
    "od_mm",
    "bead_od_mm",
    "lip_id_mm",
    "bead_mm",
    "web_mm",
    "overall_mm"
   ],
   "rows": [
    [
     "1.5",
     49.5,
     43.5,
     32.6,
     5.5,
     1.7,
     5.6
    ],
    [
     "2",
     63,
     56.5,
     45.3,
     5.5,
     1.7,
     5.6
    ]
   ]
  }
 },
 "sheet_text": "Tri-clamp gasket, ISO 2852 Type B: 1.5 and 2 in — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/tri-clamp-gasket/  (CC BY 4.0)\nBasis: ISO 2852 Type B profile: bead U 5.5, web T1 1.7, lip 1.1 thick projecting ±2.8 into the bore; measured from the files\nCatalog version: 2026-10-20\n\nSizes: see table below\n- The Type B gasket between two ISO 2852 faces: a 5.5 mm bead that fills both face recesses, a 1.7 mm web on the lands, and an inner lip into the bore.\n- 2 in: OD Ø63.0, bead out to Ø56.5 (the groove diameter), lip ID Ø45.3. 1.5 in: OD Ø49.5, bead to Ø43.5, lip ID Ø32.6. The lip is 1.1 mm thick radially and stands 2.8 mm each side of the centre plane (5.6 overall).\n- The sanitary-clamp gasket page carries the same profile for every size ½ to 4 in, with the bead 0.2 mm inside the groove diameter on radius.\n\nsize_in  od_mm  bead_od_mm  lip_id_mm  bead_mm  web_mm  overall_mm\n1.5  49.5  43.5  32.6  5.5  1.7  5.6\n2  63.0  56.5  45.3  5.5  1.7  5.6\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- ISO (via iTeh sample): ISO 2852:1974 clamp liners with gaskets (face and gasket profile, §6.1 and §8) — PDF — standard excerpt; dimensions are facts — https://cdn.standards.iteh.ai/samples/7850/eb49c396488d408c8ced3e2961d76cf3/ISO-2852-1974.pdf\n- McMaster-Carr: Sanitary caps and gaskets (free STEP per part, for your own design use; no redistribution) — STEP, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://www.mcmaster.com/products/sanitary-fittings/\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 2 parts): https://xemstudio.com/files/hardware/tri-clamp-gasket/index.json\nAPI: https://xemstudio.com/api/geometry?object=tri-clamp-gasket\n",
 "sources": [
  {
   "publisher": "ISO (via iTeh sample)",
   "title": "ISO 2852:1974 clamp liners with gaskets (face and gasket profile, §6.1 and §8)",
   "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": "McMaster-Carr",
   "title": "Sanitary caps and gaskets (free STEP per part, for your own design use; no redistribution)",
   "url": "https://www.mcmaster.com/products/sanitary-fittings/",
   "formats": [
    "STEP",
    "PDF"
   ],
   "license": "McMaster-Carr site terms: personal design use, no redistribution",
   "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-end-cap",
  "sanitary-clamp-gaskets",
  "tri-clamp-hot-gasket",
  "tri-clamp-clamps",
  "tri-clamp-ferrule"
 ],
 "fits": [
  {
   "role": "Goes in or on",
   "items": [
    {
     "slug": "tri-clamp-ferrule",
     "why": "bead in the face recess"
    }
   ]
  },
  {
   "role": "Connects to",
   "items": [
    {
     "slug": "tri-clamp-end-cap",
     "why": "seals the cap to a ferrule"
    },
    {
     "slug": "tri-clamp-clamps",
     "why": "the clamp squeezes the web"
    }
   ]
  },
  {
   "role": "Alternatives",
   "items": [
    {
     "slug": "tri-clamp-hot-gasket",
     "why": "flat ring for a hot joint"
    },
    {
     "slug": "sanitary-clamp-gaskets",
     "why": "all sizes ½ to 4 in"
    }
   ]
  }
 ],
 "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": "gasket bead",
   "exact": "groove Ø per size",
   "mates": "the two face recesses",
   "fit": "designed",
   "files": "tc-gasket-"
  }
 ],
 "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": "What are 1.5 and 2 inch tri-clamp gasket dimensions?",
   "a": "1.5 in: Ø49.5 OD, Ø32.6 lip ID. 2 in: Ø63.0 OD, Ø45.3 lip ID. Both: 5.5 mm bead, 1.7 mm web, 5.6 mm over the lip."
  },
  {
   "q": "Where does the gasket bead sit?",
   "a": "In the 1.6 mm recess of each face, inside the groove diameter (Ø43.5 / Ø56.5)."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "tc-gasket-1.5in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/tri-clamp-end-cap/tc-gasket-1.5in.step",
   "stl": "https://xemstudio.com/files/hardware/tri-clamp-end-cap/tc-gasket-1.5in.stl",
   "note": "1.5 in gasket, ISO 2852 Type B profile: OD 49.5, lip ID 32.6, 5.5 bead to Ø43.5, 1.7 web, lip ±2.8"
  },
  {
   "file": "tc-gasket-2in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/tri-clamp-end-cap/tc-gasket-2in.step",
   "stl": "https://xemstudio.com/files/hardware/tri-clamp-end-cap/tc-gasket-2in.stl",
   "note": "2 in gasket, ISO 2852 Type B profile: OD 63.0, lip ID 45.3, 5.5 bead to Ø56.5, 1.7 web, lip ±2.8"
  }
 ],
 "markdown": "https://xemstudio.com/objects/tri-clamp-gasket/index.md"
}