{
 "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": "printable-tri-clamp-brewing-sensor-lids",
 "name": "Printable tri-clamp (45°): brewing sensor lids: 4, 6 and 8 in caps with every port a fermenter needs",
 "kind": "hardware",
 "category": "Hardware",
 "group": "Printable tri-clamp",
 "year": null,
 "question": "What lid lets me log temperature, pH, CO₂ and pressure from the top of a tri-clamp fermenter (3D printable)?",
 "tags": [
  "sensor lid",
  "fermenter lid",
  "brewing sensors",
  "data logging",
  "ph",
  "temperature",
  "pressure",
  "3d printable",
  "supportless",
  "print friendly",
  "45 degree",
  "stl",
  "sanitary",
  "tri-clamp",
  "clamp fitting",
  "brewing",
  "homebrew"
 ],
 "aliases": [
  "fermenter sensor lid tri clamp printable",
  "6 inch tri clamp lid with ports printable",
  "brewing data logging lid printable",
  "3d printed tri clamp",
  "3d printable tri clamp",
  "tri clamp stl",
  "printable tri clover"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 5,
 "url": "https://xemstudio.com/objects/printable-tri-clamp-brewing-sensor-lids/",
 "sheet_txt": "https://xemstudio.com/objects/printable-tri-clamp-brewing-sensor-lids/sheet.txt",
 "sheet": {
  "basis": "Xem Studio design: Xem Studio design on the standard solid cap of each size: a 1½ in clamp port at the centre and a ring of PG13.5 probe ports, Ø6 O-ring probe glands, ¼ NPT half couplings and a ½ in hose barb; printable 45° back cone",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "3D-printable tri-clamp: this is Xem Studio's print-friendly version of the standard sanitary fitting, drawn so it prints on an ordinary FDM or resin printer with no supports. Download the STL to print it, or the STEP to edit it. The files are true size (no printing allowance): add your own clearance in the slicer or CAD if your printer needs it.",
   "For a vessel that can only be fitted through the top. Centre 1½ in clamp: a bubbler gravity cap, a thermowell, a dip tube, a carb stone or a racking cap. PG13.5 ports: pH, dissolved O₂ or CO₂ probes. Ø6 glands: temperature probes at two depths. ¼ NPT: a pressure transducer or gauge and a gas-in valve (nitrogen or CO₂). Barb: blow-off hose, or a gas-flow meter on the CO₂ coming off.",
   "Weight is read with the vessel on a scale; gravity can be read with the bubbler cap instead of a floating hydrometer.",
   "Printable tri-clamp: the ISO 2852 face and gasket groove are exactly standard, only the back cone behind each rim is 45° instead of 20°, so no rim overhangs more than 45° from vertical in any print orientation. Join these with the 45° clamps (printable-tri-clamp-clamps) and standard Type B gaskets; a 45° clamp fits only 45° rims, so keep a run all 45°. A 45° cone turns clamp force into face force at 1 : 1 (a 20° cone at 2.7 : 1), so tighten the clamp bolts harder or use M6.",
   "Print orientation: straight parts face down; elbows, tees and crosses with one face down; horizontal bores bridge their top, so keep them small or add a light tree support inside.",
   "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": [
    "size_in",
    "layout",
    "clamp_1.5in",
    "pg13.5",
    "glands_6mm",
    "npt_1/4",
    "barbs"
   ],
   "rows": [
    [
     "4",
     "basic",
     1,
     1,
     1,
     1,
     1
    ],
    [
     "6",
     "basic",
     1,
     1,
     1,
     1,
     1
    ],
    [
     "6",
     "full",
     1,
     2,
     2,
     2,
     1
    ],
    [
     "8",
     "basic",
     1,
     1,
     1,
     1,
     1
    ],
    [
     "8",
     "full",
     1,
     2,
     2,
     2,
     1
    ]
   ]
  }
 },
 "sheet_text": "Printable tri-clamp (45°): brewing sensor lids: 4, 6 and 8 in caps with every port a fermenter needs — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/printable-tri-clamp-brewing-sensor-lids/  (CC BY 4.0)\nBasis: Xem Studio design: Xem Studio design on the standard solid cap of each size: a 1½ in clamp port at the centre and a ring of PG13.5 probe ports, Ø6 O-ring probe glands, ¼ NPT half couplings and a ½ in hose barb; printable 45° back cone\nCatalog version: 2026-10-20\n\nSizes: see table below\n- 3D-printable tri-clamp: this is Xem Studio's print-friendly version of the standard sanitary fitting, drawn so it prints on an ordinary FDM or resin printer with no supports. Download the STL to print it, or the STEP to edit it. The files are true size (no printing allowance): add your own clearance in the slicer or CAD if your printer needs it.\n- For a vessel that can only be fitted through the top. Centre 1½ in clamp: a bubbler gravity cap, a thermowell, a dip tube, a carb stone or a racking cap. PG13.5 ports: pH, dissolved O₂ or CO₂ probes. Ø6 glands: temperature probes at two depths. ¼ NPT: a pressure transducer or gauge and a gas-in valve (nitrogen or CO₂). Barb: blow-off hose, or a gas-flow meter on the CO₂ coming off.\n- Weight is read with the vessel on a scale; gravity can be read with the bubbler cap instead of a floating hydrometer.\n- Printable tri-clamp: the ISO 2852 face and gasket groove are exactly standard, only the back cone behind each rim is 45° instead of 20°, so no rim overhangs more than 45° from vertical in any print orientation. Join these with the 45° clamps (printable-tri-clamp-clamps) and standard Type B gaskets; a 45° clamp fits only 45° rims, so keep a run all 45°. A 45° cone turns clamp force into face force at 1 : 1 (a 20° cone at 2.7 : 1), so tighten the clamp bolts harder or use M6.\n- Print orientation: straight parts face down; elbows, tees and crosses with one face down; horizontal bores bridge their top, so keep them small or add a light tree support inside.\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\nsize_in  layout  clamp_1.5in  pg13.5  glands_6mm  npt_1/4  barbs\n4  basic  1  1  1  1  1\n6  basic  1  1  1  1  1\n6  full  1  2  2  2  1\n8  basic  1  1  1  1  1\n8  full  1  2  2  2  1\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- DIN: DIN 40430 Pg (Panzergewinde) threads: PG13.5 Ø20.4 major, 1.41 pitch (18 tpi), Ø18.6 core; the thread of 12 mm process probes (pH, dissolved O2 / CO2) — standard — DIN; dimensions are facts [verify license at link] — https://www.din.de/en\n- ASME: B1.20.1 Pipe threads, general purpose (NPT): major diameter, L2, tap drill; B16.11 forged fittings (Class 3000 couplings); B36.10 Sch 40 bore — standard — ASME; dimensions are facts [verify license at link] — https://www.asme.org/codes-standards/find-codes-standards/b1-20-1-pipe-threads-general-purpose-inch\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, 5 parts): https://xemstudio.com/files/hardware/printable-tri-clamp-brewing-sensor-lids/index.json\nAPI: https://xemstudio.com/api/geometry?object=printable-tri-clamp-brewing-sensor-lids\n",
 "sources": [
  {
   "publisher": "DIN",
   "title": "DIN 40430 Pg (Panzergewinde) threads: PG13.5 Ø20.4 major, 1.41 pitch (18 tpi), Ø18.6 core; the thread of 12 mm process probes (pH, dissolved O2 / CO2)",
   "url": "https://www.din.de/en",
   "formats": [
    "standard"
   ],
   "license": "DIN; dimensions are facts",
   "license_verified": false,
   "hosted": false
  },
  {
   "publisher": "ASME",
   "title": "B1.20.1 Pipe threads, general purpose (NPT): major diameter, L2, tap drill; B16.11 forged fittings (Class 3000 couplings); B36.10 Sch 40 bore",
   "url": "https://www.asme.org/codes-standards/find-codes-standards/b1-20-1-pipe-threads-general-purpose-inch",
   "formats": [
    "standard"
   ],
   "license": "ASME; dimensions are facts",
   "license_verified": false,
   "hosted": false
  },
  {
   "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-brewing-sensor-lids",
  "tri-clamp-bubbler-gravity-caps",
  "tri-clamp-pg13-5-probe-ports",
  "tri-clamp-probe-gland-caps",
  "tri-clamp-dished-bottom-vessels",
  "tri-clamp-dome-lids",
  "printable-tri-clamp-clamps"
 ],
 "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": "Can I 3D print this?",
   "a": "Yes. It is the 3D-printable version: every overhang is 45° or steeper, so it prints without supports, and the sealing face is standard ISO 2852, so a normal gasket and clamp fit."
  },
  {
   "q": "Which lid for a 6 × 18 in vessel?",
   "a": "The 6 in full lid: two probe ports, two temperature glands, two ¼ NPT ports, a blow-off barb and a 1½ in clamp port in the middle."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "sensor-lid-4in-basic-45",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/printable-tri-clamp-brewing-sensor-lids/sensor-lid-4in-basic-45.step",
   "stl": "https://xemstudio.com/files/hardware/printable-tri-clamp-brewing-sensor-lids/sensor-lid-4in-basic-45.stl",
   "note": "4 in sensor lid (basic): 1½ in clamp port at the centre; on r 34: PG13.5 probe port, Ø6 probe gland, ¼ FNPT, ½ in blow-off barb — printable, 45° rims"
  },
  {
   "file": "sensor-lid-6in-basic-45",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/printable-tri-clamp-brewing-sensor-lids/sensor-lid-6in-basic-45.step",
   "stl": "https://xemstudio.com/files/hardware/printable-tri-clamp-brewing-sensor-lids/sensor-lid-6in-basic-45.stl",
   "note": "6 in sensor lid (basic): 1½ in clamp port at the centre; on r 52: PG13.5 probe port, Ø6 probe gland, ¼ FNPT, ½ in blow-off barb — printable, 45° rims"
  },
  {
   "file": "sensor-lid-6in-full-45",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/printable-tri-clamp-brewing-sensor-lids/sensor-lid-6in-full-45.step",
   "stl": "https://xemstudio.com/files/hardware/printable-tri-clamp-brewing-sensor-lids/sensor-lid-6in-full-45.stl",
   "note": "6 in sensor lid (full): 1½ in clamp port at the centre; on r 52: PG13.5 probe port, PG13.5 probe port, Ø6 probe gland, ¼ FNPT, ½ in blow-off barb, Ø6 probe gland, ¼ FNPT — printable, 45° rims"
  },
  {
   "file": "sensor-lid-8in-basic-45",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/printable-tri-clamp-brewing-sensor-lids/sensor-lid-8in-basic-45.step",
   "stl": "https://xemstudio.com/files/hardware/printable-tri-clamp-brewing-sensor-lids/sensor-lid-8in-basic-45.stl",
   "note": "8 in sensor lid (basic): 1½ in clamp port at the centre; on r 70: PG13.5 probe port, Ø6 probe gland, ¼ FNPT, ½ in blow-off barb — printable, 45° rims"
  },
  {
   "file": "sensor-lid-8in-full-45",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/printable-tri-clamp-brewing-sensor-lids/sensor-lid-8in-full-45.step",
   "stl": "https://xemstudio.com/files/hardware/printable-tri-clamp-brewing-sensor-lids/sensor-lid-8in-full-45.stl",
   "note": "8 in sensor lid (full): 1½ in clamp port at the centre; on r 70: PG13.5 probe port, PG13.5 probe port, Ø6 probe gland, ¼ FNPT, ½ in blow-off barb, Ø6 probe gland, ¼ FNPT — printable, 45° rims"
  }
 ],
 "markdown": "https://xemstudio.com/objects/printable-tri-clamp-brewing-sensor-lids/index.md"
}