{
  "schema": "structured-table-v1",
  "id": "c12-trap-selection",
  "scope": "Conditional historical steam-trap selection basis, applicable only if adopted for the application.",
  "columns": [
    {
      "id": "application",
      "label": "Application"
    },
    {
      "id": "general_factor",
      "label": "General sizing factor",
      "unit": "dimensionless"
    },
    {
      "id": "temperature_control_factor",
      "label": "With temperature control",
      "unit": "dimensionless",
      "null_semantics": "No separate factor specified; not zero."
    }
  ],
  "rows": [
    {
      "application": "Steam-main drainage",
      "general_factor": 2,
      "temperature_control_factor": null
    },
    {
      "application": "Tracing lines",
      "general_factor": 2,
      "temperature_control_factor": null
    },
    {
      "application": "Heat exchangers and general process",
      "general_factor": 2,
      "temperature_control_factor": 3
    },
    {
      "application": "Space unit heaters",
      "general_factor": 2,
      "temperature_control_factor": 3
    },
    {
      "application": "Air-heating coils",
      "general_factor": 2,
      "temperature_control_factor": 3
    },
    {
      "application": "Submerged coils",
      "general_factor": 2,
      "temperature_control_factor": null
    },
    {
      "application": "Submerged coils with siphon drain",
      "general_factor": 2,
      "temperature_control_factor": null
    },
    {
      "application": "Rotating cylinders",
      "general_factor": 2,
      "temperature_control_factor": null
    }
  ],
  "method": "Apply the selected factor to the condensate duty; evaluate capacity at actual inlet/backpressure conditions and startup load. Factors do not cure stall.",
  "family_qualifications": [
    "For this basis, thermodynamic traps are excluded if backpressure is greater than 50% of inlet pressure.",
    "Superheated steam requires manufacturer evaluation.",
    "Rotating-cylinder float-and-thermostatic selection includes steam-lock release."
  ]
}