{
 "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-probe-gland-caps",
 "name": "Tri-clamp probe gland caps: Ø4, Ø6 and ¼ in probes, 1 to 3 per cap",
 "kind": "hardware",
 "category": "Hardware",
 "group": "Sanitary clamp fittings",
 "year": null,
 "question": "How do I put a 6 mm temperature probe through a tri-clamp lid?",
 "tags": [
  "probe gland",
  "temperature probe",
  "ds18b20",
  "cable gland",
  "sensor port",
  "sanitary",
  "tri-clamp",
  "clamp fitting",
  "brewing",
  "homebrew"
 ],
 "aliases": [
  "tri clamp temperature probe port",
  "ds18b20 tri clamp",
  "6mm probe gland",
  "fermenter probe gland"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 18,
 "url": "https://xemstudio.com/objects/tri-clamp-probe-gland-caps/",
 "sheet_txt": "https://xemstudio.com/objects/tri-clamp-probe-gland-caps/sheet.txt",
 "sheet": {
  "basis": "Xem Studio design on the standard solid cap: a boss bored to the probe diameter with two internal grooves for a probe-size × 1.5 O-ring",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Slide a stainless probe (the common 6 × 50 mm DS18B20 temperature probe, a Ø4 thermocouple or a ¼ in RTD) down through the lid; two O-rings seal it and let you set the depth.",
   "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",
    "probe_mm",
    "ports",
    "o_ring"
   ],
   "rows": [
    [
     "1–1½",
     4,
     1,
     "4 × 1.5"
    ],
    [
     "1–1½",
     4,
     2,
     "4 × 1.5"
    ],
    [
     "1–1½",
     4,
     3,
     "4 × 1.5"
    ],
    [
     "1–1½",
     6,
     1,
     "6 × 1.5"
    ],
    [
     "1–1½",
     6,
     2,
     "6 × 1.5"
    ],
    [
     "1–1½",
     6,
     3,
     "6 × 1.5"
    ],
    [
     "1–1½",
     6.35,
     1,
     "6.35 × 1.5"
    ],
    [
     "1–1½",
     6.35,
     2,
     "6.35 × 1.5"
    ],
    [
     "1–1½",
     6.35,
     3,
     "6.35 × 1.5"
    ],
    [
     "2",
     4,
     1,
     "4 × 1.5"
    ],
    [
     "2",
     4,
     2,
     "4 × 1.5"
    ],
    [
     "2",
     4,
     3,
     "4 × 1.5"
    ],
    [
     "2",
     6,
     1,
     "6 × 1.5"
    ],
    [
     "2",
     6,
     2,
     "6 × 1.5"
    ],
    [
     "2",
     6,
     3,
     "6 × 1.5"
    ],
    [
     "2",
     6.35,
     1,
     "6.35 × 1.5"
    ],
    [
     "2",
     6.35,
     2,
     "6.35 × 1.5"
    ],
    [
     "2",
     6.35,
     3,
     "6.35 × 1.5"
    ]
   ]
  }
 },
 "sheet_text": "Tri-clamp probe gland caps: Ø4, Ø6 and ¼ in probes, 1 to 3 per cap — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/tri-clamp-probe-gland-caps/  (CC BY 4.0)\nBasis: Xem Studio design on the standard solid cap: a boss bored to the probe diameter with two internal grooves for a probe-size × 1.5 O-ring\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Slide a stainless probe (the common 6 × 50 mm DS18B20 temperature probe, a Ø4 thermocouple or a ¼ in RTD) down through the lid; two O-rings seal it and let you set the depth.\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  probe_mm  ports  o_ring\n1–1½  4.0  1  4 × 1.5\n1–1½  4.0  2  4 × 1.5\n1–1½  4.0  3  4 × 1.5\n1–1½  6.0  1  6 × 1.5\n1–1½  6.0  2  6 × 1.5\n1–1½  6.0  3  6 × 1.5\n1–1½  6.35  1  6.35 × 1.5\n1–1½  6.35  2  6.35 × 1.5\n1–1½  6.35  3  6.35 × 1.5\n2  4.0  1  4 × 1.5\n2  4.0  2  4 × 1.5\n2  4.0  3  4 × 1.5\n2  6.0  1  6 × 1.5\n2  6.0  2  6 × 1.5\n2  6.0  3  6 × 1.5\n2  6.35  1  6.35 × 1.5\n2  6.35  2  6.35 × 1.5\n2  6.35  3  6.35 × 1.5\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- 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, 18 parts): https://xemstudio.com/files/hardware/tri-clamp-probe-gland-caps/index.json\nAPI: https://xemstudio.com/api/geometry?object=tri-clamp-probe-gland-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",
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   "license": "publisher's guide; dimensions cited",
   "license_verified": true,
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  {
   "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",
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    "PDF"
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   "license": "maker chart; dimensions are facts",
   "license_verified": false,
   "hosted": false
  }
 ],
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  "sheet_free": true,
  "mesh_price_usd": null,
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  "tolerance_mm": null
 },
 "related": [
  "tri-clamp-pg13-5-probe-ports",
  "tri-clamp-thermowells",
  "tri-clamp-brewing-sensor-lids"
 ],
 "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 O-ring?",
   "a": "One the size of the probe with a 1.5 mm section (6 × 1.5 for a 6 mm probe), two per port."
  }
 ],
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