{
  "category": "Gate Valves",
  "vertical": "plumbing-and-pvf",
  "source": "https://getclaro.ai/resources/attribute-library/plumbing-and-pvf/gate-valves/",
  "status": "editorial-draft",
  "note": "Editorial reference template. Example values show format only and do not describe a real SKU. Not an official ETIM or ECLASS class.",
  "groups": [
    {
      "key": "identity",
      "name": "Identity",
      "check": "Preserve leading zeros and punctuation, validate against the manufacturer record, and check the GTIN check digit and packaging level before linking."
    },
    {
      "key": "technical",
      "name": "Technical specifications",
      "check": "Store the number and unit separately. Convert only when the source unit and test conditions are known."
    },
    {
      "key": "selection",
      "name": "Selection attributes",
      "check": "Map supplier wording to a governed vocabulary only after checking the source text and which variant it applies to."
    },
    {
      "key": "fit",
      "name": "Fit & compatibility",
      "check": "Keep model and series qualifiers. A similar-looking part is not a verified fit until a source says so."
    },
    {
      "key": "evidence",
      "name": "Evidence & compliance",
      "check": "Link the manufacturer document or label with its edition or date. Never copy a certification from a neighboring SKU."
    }
  ],
  "fields": [
    {
      "key": "valve_size_nominal",
      "label": "Valve Size (Nominal)",
      "group": "technical",
      "priority": "core",
      "value_type": "controlled",
      "unit": "in",
      "example_format": "2 in (DN 50)"
    },
    {
      "key": "end_connection",
      "label": "End Connection",
      "group": "fit",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Threaded, FNPT x FNPT"
    },
    {
      "key": "body_material",
      "label": "Body Material",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Lead-free bronze (ASTM B584)"
    },
    {
      "key": "pressure_class",
      "label": "Pressure Class",
      "group": "technical",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Class 125"
    },
    {
      "key": "cold_working_pressure_cwp",
      "label": "Cold Working Pressure (CWP)",
      "group": "technical",
      "priority": "core",
      "value_type": "number",
      "unit": "psi",
      "example_format": "200"
    },
    {
      "key": "stem_type",
      "label": "Stem Type",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Non-Rising Stem (NRS)"
    },
    {
      "key": "wedge_type",
      "label": "Wedge Type",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Solid Wedge"
    },
    {
      "key": "manufacturer_part_number_mpn",
      "label": "Manufacturer Part Number (MPN)",
      "group": "identity",
      "priority": "core",
      "value_type": "identifier",
      "unit": null,
      "example_format": "GV-125-T-200"
    },
    {
      "key": "gtin_upc",
      "label": "GTIN / UPC",
      "group": "identity",
      "priority": "core",
      "value_type": "identifier",
      "unit": null,
      "example_format": "614141230068"
    },
    {
      "key": "bonnet_type",
      "label": "Bonnet Type",
      "group": "selection",
      "priority": "differentiating",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Screw-in bonnet"
    },
    {
      "key": "saturated_steam_rating_wsp",
      "label": "Saturated Steam Rating (WSP)",
      "group": "technical",
      "priority": "differentiating",
      "value_type": "number",
      "unit": "psi",
      "example_format": "125"
    },
    {
      "key": "maximum_operating_temperature",
      "label": "Maximum Operating Temperature",
      "group": "technical",
      "priority": "differentiating",
      "value_type": "number",
      "unit": "°F",
      "example_format": "353"
    },
    {
      "key": "trim_seat_material",
      "label": "Trim / Seat Material",
      "group": "selection",
      "priority": "differentiating",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Bronze wedge and seat"
    },
    {
      "key": "operator_type",
      "label": "Operator Type",
      "group": "selection",
      "priority": "differentiating",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Handwheel"
    },
    {
      "key": "design_standard",
      "label": "Design Standard",
      "group": "evidence",
      "priority": "channel",
      "value_type": "controlled",
      "unit": null,
      "example_format": "MSS SP-80"
    },
    {
      "key": "lead_free_compliance_nsf_ansi_can_372",
      "label": "Lead-Free Compliance (NSF/ANSI/CAN 372)",
      "group": "evidence",
      "priority": "channel",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Certified to NSF/ANSI/CAN 372"
    },
    {
      "key": "ul_listed_fm_approved",
      "label": "UL Listed / FM Approved",
      "group": "evidence",
      "priority": "channel",
      "value_type": "text",
      "unit": null,
      "example_format": "Not listed (general service)"
    },
    {
      "key": "country_of_origin",
      "label": "Country of Origin",
      "group": "evidence",
      "priority": "channel",
      "value_type": "controlled",
      "unit": null,
      "example_format": "United States"
    }
  ],
  "evidence_columns": [
    "raw_value",
    "normalized_value",
    "source_uri",
    "source_page_or_row",
    "confidence",
    "review_state",
    "last_verified"
  ],
  "normalization_examples": [
    {
      "attribute": "End Connection",
      "variants": [
        "FIPT",
        "F.N.P.T.",
        "NPT Female",
        "Threaded (FNPT)",
        "FIP",
        "Female Thrd"
      ],
      "normalized": "Threaded, NPT Female (FNPT)"
    },
    {
      "attribute": "Stem Type",
      "variants": [
        "NRS",
        "N.R.S.",
        "Non Rising Stem",
        "Inside Screw Non-Rising",
        "IS/NRS",
        "Nonrising"
      ],
      "normalized": "Non-Rising Stem (NRS)"
    },
    {
      "attribute": "Body Material",
      "variants": [
        "CF8M",
        "SS316",
        "316 Stainless",
        "A351 CF8M",
        "Cast 316 SS",
        "ASTM A351 Gr. CF8M"
      ],
      "normalized": "Stainless Steel, ASTM A351 CF8M"
    }
  ]
}