{
  "metadata": {
    "id": "smc-kq2t07-00a",
    "name": "SMC KQ2T07-00A Union Tee (1/4\" OD)",
    "type": "connector",
    "description": "SMC KQ2 series union tee fitting for 1/4\" OD tubing. A three-way push-to-connect fitting that splits or combines flow between three 1/4\" pneumatic tubes at a T-junction. Ideal for branching an air supply line into two lines or vice versa. All three ports accept 1/4\" outer diameter tube.",
    "manufacturer": "SMC",
    "part_number": "KQ2T07-00A",
    "datasheet_url": "https://www.smcusa.com/products/union-tee-kq2t-00~177589",
    "tags": [
      "SMC",
      "tee",
      "push-to-connect",
      "1/4 OD tube",
      "fitting"
    ],
    "schema_version": "1.4.0",
    "version": "0.2.0",
    "taxonomy": [
      "mechanical.pneumatic"
    ]
  },
  "domains": [
    {
      "domain": "pneumatic",
      "resources": [
        {
          "id": "tube_port_1",
          "functions": [
            {
              "name": "pneumatic_connection"
            }
          ],
          "connector_type": "quick_connect",
          "tube_od_inch": 0.25,
          "port_size": "1/4\" OD tube",
          "working_pressure_bar": 10,
          "max_pressure_bar": 10,
          "compatible_fluids": [
            "compressed_air"
          ],
          "fluid_temperature_C": [
            -5,
            60
          ],
          "seal_type": "o_ring",
          "description": "Push-in tube port (1/4\" OD) - branch 1"
        },
        {
          "id": "tube_port_2",
          "functions": [
            {
              "name": "pneumatic_connection"
            }
          ],
          "connector_type": "quick_connect",
          "tube_od_inch": 0.25,
          "port_size": "1/4\" OD tube",
          "working_pressure_bar": 10,
          "max_pressure_bar": 10,
          "compatible_fluids": [
            "compressed_air"
          ],
          "fluid_temperature_C": [
            -5,
            60
          ],
          "seal_type": "o_ring",
          "description": "Push-in tube port (1/4\" OD) - branch 2"
        },
        {
          "id": "tube_port_3",
          "functions": [
            {
              "name": "pneumatic_connection"
            }
          ],
          "connector_type": "quick_connect",
          "tube_od_inch": 0.25,
          "port_size": "1/4\" OD tube",
          "working_pressure_bar": 10,
          "max_pressure_bar": 10,
          "compatible_fluids": [
            "compressed_air"
          ],
          "fluid_temperature_C": [
            -5,
            60
          ],
          "seal_type": "o_ring",
          "description": "Push-in tube port (1/4\" OD) - branch 3"
        }
      ],
      "interfaces": [
        {
          "id": "three_way_splitter",
          "protocol": {
            "type": "pneumatic",
            "role": "splitter"
          },
          "requires": [
            {
              "function": "pneumatic_connection",
              "count": 3
            }
          ],
          "constraints": [
            {
              "tube_od_inch": 0.25
            },
            {
              "max_pressure_bar": "<=10.0"
            },
            {
              "compatible_fluids": "compressed_air"
            }
          ],
          "max_instances": 1,
          "description": "3-way tube splitter interface (connects three 1/4\" tube lines together)",
          "name": "Three Way Splitter"
        }
      ],
      "metadata": {
        "working_medium": "compressed_air",
        "max_pressure_bar": 10,
        "min_pressure_bar": -0.1,
        "fluid_temperature_C": [
          -5,
          60
        ],
        "connection_type": "union_tee"
      }
    },
    {
      "domain": "mechanical",
      "resources": [
        {
          "id": "tee_body",
          "functions": [
            {
              "name": "mounting"
            }
          ],
          "material": "pbt_plastic",
          "dimensions_mm": {
            "length": 20,
            "width": 20,
            "height": 12
          },
          "weight_g": 5,
          "description": "PBT plastic tee body with three tube ports"
        }
      ],
      "interfaces": [],
      "metadata": {
        "mounting_method": "tube_supported",
        "orientation": "any"
      }
    },
    {
      "domain": "thermal",
      "resources": [],
      "interfaces": [],
      "metadata": {
        "operating_temperature_C": [
          -5,
          60
        ],
        "storage_temperature_C": [
          -20,
          80
        ]
      }
    }
  ],
  "design_rules": [
    "Insert each tube fully into the fitting until it seats (to ensure proper seal on all three connections)",
    "If used for fluid (water), ensure tubing is compatible and system pressure is within limits (150 psi max)",
    "Avoid pulling or bending the tubes excessively at the Tee to maintain seal integrity"
  ],
  "validation_requirements": [
    "All three connected lines must use 1/4\" OD tubing (ensure consistent tube size)",
    "Check that the Tee is installed in an orientation that won't kink the tubing (use proper routing)",
    "Perform a leak test after installation to verify all three connections are sealed"
  ],
  "usage_notes": "This union tee splits one incoming tube line into two outgoing lines (or merges two lines into one common line). Commonly used in pneumatic control circuits to distribute air supply to multiple actuators or to combine outputs. The fitting allows quick reconfiguration of tubing without tools.",
  "application_examples": [
    "Dividing a main air supply line into two branch lines for separate pneumatic cylinders",
    "Joining two 1/4\" air lines into one (e.g., for parallel feed or sensor feedback loops)"
  ],
  "compatibility_notes": "Compatible with any standard 1/4\" outer diameter pneumatic tubing (nylon, polyethylene, polyurethane, etc.). The union tee simply provides a common junction; all three ports share the same pressure when connected.",
  "warnings": [
    "There is no check valve or flow control inside the Tee; it freely allows flow/pressure between all ports",
    "If one branch is left open or removed, the entire circuit will leak; ensure all three ports remain connected or plugged",
    "Keep the fitting clean; debris on the O-rings can cause leaks when inserting tubing"
  ]
}