{
  "category": "Pressure Gauges",
  "vertical": "pump-valve-and-process-equipment",
  "source": "https://getclaro.ai/resources/attribute-library/pump-valve-and-process-equipment/pressure-gauges/",
  "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": "gauge_type",
      "label": "Gauge Type",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Bourdon tube, C-type"
    },
    {
      "key": "nominal_dial_size",
      "label": "Nominal Dial Size",
      "group": "technical",
      "priority": "core",
      "value_type": "controlled",
      "unit": "in",
      "example_format": "4 in [NS 100]"
    },
    {
      "key": "pressure_range_scale_range",
      "label": "Pressure Range (Scale Range)",
      "group": "technical",
      "priority": "core",
      "value_type": "text",
      "unit": "psi",
      "example_format": "0 to 160 psi"
    },
    {
      "key": "scale_unit",
      "label": "Scale Unit",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "psi / bar dual scale"
    },
    {
      "key": "process_connection_size_thread_standard",
      "label": "Process Connection Size & Thread Standard",
      "group": "fit",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "1/4 in NPT male (ASME B1.20.1)"
    },
    {
      "key": "connection_location",
      "label": "Connection Location",
      "group": "fit",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Lower mount (radial)"
    },
    {
      "key": "accuracy_grade_class",
      "label": "Accuracy Grade / Class",
      "group": "technical",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "ASME B40.100 Grade 1A (±1% of span)"
    },
    {
      "key": "wetted_parts_material",
      "label": "Wetted Parts Material",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Stainless steel 316L (1.4404)"
    },
    {
      "key": "case_filling",
      "label": "Case Filling",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Glycerine"
    },
    {
      "key": "manufacturer_part_number",
      "label": "Manufacturer Part Number",
      "group": "identity",
      "priority": "core",
      "value_type": "identifier",
      "unit": null,
      "example_format": "PG-100-316-160-LM"
    },
    {
      "key": "case_material",
      "label": "Case Material",
      "group": "selection",
      "priority": "differentiating",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Stainless steel 304 (1.4301)"
    },
    {
      "key": "overpressure_pressure_limitation",
      "label": "Overpressure / Pressure Limitation",
      "group": "technical",
      "priority": "differentiating",
      "value_type": "text",
      "unit": null,
      "example_format": "Steady 1.0 × FS; fluctuating 0.9 × FS; short-time 1.3 × FS"
    },
    {
      "key": "medium_temperature_range",
      "label": "Medium Temperature Range",
      "group": "technical",
      "priority": "differentiating",
      "value_type": "text",
      "unit": "°C",
      "example_format": "-20 to +100 °C (glycerine filled)"
    },
    {
      "key": "ingress_protection_rating",
      "label": "Ingress Protection Rating",
      "group": "technical",
      "priority": "differentiating",
      "value_type": "controlled",
      "unit": null,
      "example_format": "IP65 per IEC/EN 60529"
    },
    {
      "key": "safety_pattern_en_837_1",
      "label": "Safety Pattern (EN 837-1)",
      "group": "selection",
      "priority": "channel",
      "value_type": "controlled",
      "unit": null,
      "example_format": "S3 (solid front, blow-out back)"
    },
    {
      "key": "hazardous_area_approval",
      "label": "Hazardous Area Approval",
      "group": "evidence",
      "priority": "channel",
      "value_type": "controlled",
      "unit": null,
      "example_format": "ATEX II 2G Ex h IIC T6...T1 Gb X"
    },
    {
      "key": "gtin_upc",
      "label": "GTIN / UPC",
      "group": "identity",
      "priority": "channel",
      "value_type": "identifier",
      "unit": null,
      "example_format": "00614141000913"
    },
    {
      "key": "country_of_origin",
      "label": "Country of Origin",
      "group": "evidence",
      "priority": "channel",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Germany"
    }
  ],
  "evidence_columns": [
    "raw_value",
    "normalized_value",
    "source_uri",
    "source_page_or_row",
    "confidence",
    "review_state",
    "last_verified"
  ],
  "normalization_examples": [
    {
      "attribute": "Process Connection Size & Thread Standard",
      "variants": [
        "1/4 NPT",
        "1/4\" MNPT",
        "¼ NPT M",
        "NPT 1/4 male",
        "1/4-18 NPT",
        "1/4 in. NPT(M)"
      ],
      "normalized": "1/4 in NPT male (ASME B1.20.1)"
    },
    {
      "attribute": "Nominal Dial Size",
      "variants": [
        "4\"",
        "100mm",
        "NS100",
        "4 in",
        "Ø100",
        "4.0 in"
      ],
      "normalized": "4 in [NS 100]"
    },
    {
      "attribute": "Case Filling",
      "variants": [
        "Glycerine Filled",
        "Gly. Filled",
        "Glycerin",
        "Glycerin-filled",
        "GF",
        "Liquid-filled (glycerine)"
      ],
      "normalized": "Glycerine"
    }
  ]
}