{
  "metadata": {
    "id": "derpipe-1-2npt-to-1-8npt",
    "name": "1/2\" NPT Female to 1/8\" NPT Male Reducer",
    "type": "connector",
    "description": "Thread reducing adapter (bushing) from 1/2\" NPT to 1/8\" NPT. Features a 1/2\"-14 NPT female port and a 1/8\"-27 NPT male thread. Typically made of 304 stainless steel for high strength and corrosion resistance. Allows attaching small 1/8\" NPT fittings (such as pressure sensors or gauges) into 1/2\" NPT ports. Useful in pneumatic/hydraulic systems to adapt port sizes.",
    "manufacturer": "DERPIPE",
    "part_number": "N/A",
    "datasheet_url": "",
    "tags": [
      "reducer",
      "adapter",
      "thread",
      "NPT",
      "bushing",
      "stainless",
      "pneumatic"
    ],
    "schema_version": "1.4.0",
    "version": "0.2.0",
    "taxonomy": [
      "mechanical.pneumatic",
      "mechanical.adapter"
    ]
  },
  "domains": [
    {
      "domain": "pneumatic",
      "resources": [
        {
          "id": "npt_female_port",
          "functions": [
            {
              "name": "pneumatic_connection"
            }
          ],
          "connector_type": "threaded_port",
          "working_pressure_bar": 70,
          "max_pressure_bar": 100,
          "min_pressure_bar": 0,
          "thread_standard": "NPT",
          "port_size": "1/2\"",
          "seal_type": "PTFE",
          "compatible_fluids": [
            "compressed_air",
            "nitrogen",
            "hydraulic_oil"
          ],
          "fluid_temperature_C": [
            -20,
            120
          ],
          "description": "Female 1/2\"-14 NPT port (accepts 1/2\" NPT male fitting)"
        },
        {
          "id": "npt_male_port",
          "functions": [
            {
              "name": "pneumatic_connection"
            }
          ],
          "connector_type": "threaded_port",
          "working_pressure_bar": 70,
          "max_pressure_bar": 100,
          "min_pressure_bar": 0,
          "thread_standard": "NPT",
          "port_size": "1/8\"",
          "seal_type": "PTFE",
          "compatible_fluids": [
            "compressed_air",
            "nitrogen",
            "hydraulic_oil"
          ],
          "fluid_temperature_C": [
            -20,
            120
          ],
          "description": "Male 1/8\"-27 NPT thread (connects into 1/8\" NPT female port)"
        }
      ],
      "interfaces": [
        {
          "id": "npt_half_inch_input",
          "protocol": {
            "type": "pneumatic",
            "role": "supply"
          },
          "requires": [
            {
              "function": "pneumatic_connection",
              "count": 1
            }
          ],
          "max_instances": 1,
          "exclusive": true,
          "system_pressure_bar": 70,
          "fluid_type": "compressed_air",
          "constraints": {
            "requires_connector_type": "threaded_port",
            "requires_thread_standard": "NPT",
            "requires_port_size": "1/2\"",
            "requires_male_thread": true
          },
          "description": "NPT 1/2\" female threaded pneumatic input interface",
          "name": "Npt Half Inch Input"
        },
        {
          "id": "npt_eighth_inch_output",
          "protocol": {
            "type": "pneumatic",
            "role": "supply"
          },
          "requires": [
            {
              "function": "pneumatic_connection",
              "count": 1
            }
          ],
          "max_instances": 1,
          "exclusive": true,
          "system_pressure_bar": 70,
          "fluid_type": "compressed_air",
          "constraints": {
            "requires_connector_type": "threaded_port",
            "requires_thread_standard": "NPT",
            "requires_port_size": "1/8\"",
            "requires_female_thread": true
          },
          "description": "NPT 1/8\" male threaded pneumatic output interface",
          "name": "Npt Eighth Inch Output"
        }
      ],
      "metadata": {
        "working_medium": "compressed_air",
        "standard_pressure_bar": 7,
        "compressor_required": false,
        "air_treatment_required": false
      }
    },
    {
      "domain": "mechanical",
      "resources": [],
      "interfaces": [],
      "package_type": "Threaded Reducer",
      "dimensions_mm": {
        "length": 20,
        "width": 19,
        "height": 14
      },
      "weight_g": 25,
      "mount_holes": [],
      "metadata": {
        "mounting_method": "threaded",
        "enclosure_type": "open",
        "assembly_time_min": 1,
        "field_serviceable": true
      }
    },
    {
      "domain": "thermal",
      "resources": [],
      "interfaces": [],
      "operating_temperature_C": [
        -20,
        120
      ],
      "metadata": {
        "thermal_design_power_W": 0,
        "requires_thermal_management": false,
        "thermal_monitoring_available": false,
        "cooling_method": "passive"
      }
    }
  ],
  "design_rules": [
    "Apply thread sealant (PTFE tape or paste) to the 1/8\" NPT male threads before installation",
    "Support the fitting with a wrench when tightening to avoid undue stress (hex shape allows wrench grip)",
    "Avoid over-tightening the 1/8\" NPT connection, as small threads can strip or crack",
    "Maximum working pressure 1000 PSI (70 bar) for stainless steel construction",
    "Use appropriate torque values for each thread size"
  ],
  "validation_requirements": [
    "Confirm both ports are NPT standard (not for BSP threads)",
    "Ensure the adapter's materials (stainless steel) are compatible with the media (air, fluids)",
    "Verify pressure ratings if used in high-pressure systems (stainless steel fitting typically supports >1000 PSI)",
    "Check thread engagement on both 1/2\" and 1/8\" sides",
    "Perform leak test at working pressure"
  ],
  "usage_notes": "Use this reducer bushing to attach a small fitting or sensor (1/8\" NPT male) into a larger 1/2\" NPT threaded hole. Commonly used for installing pressure transducers or gauges into larger pipe tees or manifolds. The stainless steel construction provides durability for high-pressure or corrosive environments.",
  "application_examples": [
    "Installing a 1/8\" NPT pressure sensor into a 1/2\" NPT port on a pneumatic manifold",
    "Adapting a large pipe outlet to accept a small 1/8\" NPT oil pressure gauge in an engine or hydraulic line",
    "Connecting pressure monitoring equipment to larger pneumatic systems"
  ],
  "compatibility_notes": "Both ends use NPT threads (tapered). Only use with corresponding NPT threaded components of matching sizes. Not suitable for BSP threads without additional adapters. Compatible with NPT thread standards: 1/2\"-14 NPT female input, 1/8\"-27 NPT male output.",
  "warnings": [
    "When used in hydraulic or high-pressure systems, verify that the pressure does not exceed the adapter's rating",
    "A smaller 1/8\" passage may restrict flow; use primarily for sensor or gauge connections, not high flow transfer",
    "Ensure no debris enters the adapter during installation, as the small orifice can clog",
    "Stainless steel construction allows higher pressures than brass alternatives",
    "Do not mix thread standards - ensure all connections are NPT compatible"
  ]
}