Microbore

{
  "id": "MLC-T-IND-003636",
  "term": "Microbore",
  "field": "Industrial and trades",
  "definition": "A central heating pipework system that uses narrow copper tube, commonly 8 mm or 10 mm in outside diameter, run from a manifold to each radiator instead of through large flow and return mains. The narrow tubes resist flow strongly, so the pump must develop a higher head than on conventional pipework. Conventional small-bore systems use 15 mm and 22 mm tube for the main runs.",
  "subject": "Plumbing",
  "references": [
    "Central heating - microbore (groups.google.com)"
  ],
  "translations": {
    "de": "Microbore",
    "es": "microtubería",
    "fr": "microbore"
  },
  "url": "https://mlchart.com/terminology/industrial/microbore/"
}