{
  "metadata": {
    "id": "tailonz-2v025-08-24v",
    "name": "2V025-08 Pneumatic Solenoid Valve 1/4\" 24V NC",
    "type": "actuator",
    "description": "2-way 2-position normally-closed solenoid valve, model 2V025-08 (Tailonz/AirTac type). 1/4\" NPT female inlet and outlet ports. When 24V DC power is applied, the valve opens to allow flow between the two ports; when de-energized, the valve is closed (stopping flow). Direct-acting design with approximately 2.5 mm orifice, suitable for air pressures 0 to 0.7–1.0 MPa. Aluminum alloy body, coil power ~11 W.",
    "manufacturer": "Tailonz (AirTac compatible)",
    "part_number": "2V025-08",
    "datasheet_url": "",
    "tags": [
      "solenoid",
      "valve",
      "1/4 NPT",
      "24V",
      "normally closed",
      "pneumatic"
    ],
    "schema_version": "1.4.0",
    "version": "0.2.0",
    "taxonomy": [
      "actuator.linear_actuator",
      "mechanical.pneumatic"
    ]
  },
  "domains": [
    {
      "domain": "electrical",
      "power_domains": [
        {
          "id": "coil_supply",
          "name": "Coil Supply 24V",
          "nominal_voltage_V": 24,
          "voltage_range_V": [
            22,
            26
          ],
          "max_current_mA": 500,
          "description": "DC coil supply for solenoid valve"
        }
      ],
      "resources": [
        {
          "id": "coil_positive",
          "functions": [
            {
              "name": "power_input"
            }
          ],
          "connector_type": "wire",
          "power_domain_id": "coil_supply",
          "required_voltage_V": 24,
          "description": "Solenoid coil positive lead (24V DC input)"
        },
        {
          "id": "coil_negative",
          "functions": [
            {
              "name": "ground"
            }
          ],
          "connector_type": "wire",
          "power_domain_id": "coil_supply",
          "description": "Solenoid coil negative lead (return to ground)"
        }
      ],
      "interfaces": [
        {
          "id": "coil_power",
          "protocol": {
            "type": "power",
            "role": "input"
          },
          "requires": [
            {
              "function": "power_input",
              "count": 1
            },
            {
              "function": "ground",
              "count": 1
            }
          ],
          "max_instances": 1,
          "description": "Electrical interface for 24V DC solenoid coil power",
          "name": "Power Input"
        }
      ]
    },
    {
      "domain": "pneumatic",
      "resources": [
        {
          "id": "port_1",
          "functions": [
            {
              "name": "pneumatic_connection"
            }
          ],
          "connector_type": "threaded_port",
          "thread_standard": "NPT",
          "thread_size": "1/4\"",
          "thread_gender": "female",
          "port_size": "1/4\"",
          "working_pressure_bar": 10,
          "max_pressure_bar": 10,
          "compatible_fluids": [
            "compressed_air"
          ],
          "fluid_temperature_C": [
            0,
            60
          ],
          "seal_type": "thread_sealant",
          "description": "Pneumatic port 1 (1/4\"-18 NPT female) - inlet or outlet"
        },
        {
          "id": "port_2",
          "functions": [
            {
              "name": "pneumatic_connection"
            }
          ],
          "connector_type": "threaded_port",
          "thread_standard": "NPT",
          "thread_size": "1/4\"",
          "thread_gender": "female",
          "port_size": "1/4\"",
          "working_pressure_bar": 10,
          "max_pressure_bar": 10,
          "compatible_fluids": [
            "compressed_air"
          ],
          "fluid_temperature_C": [
            0,
            60
          ],
          "seal_type": "thread_sealant",
          "description": "Pneumatic port 2 (1/4\"-18 NPT female) - outlet or exhaust"
        }
      ],
      "interfaces": [
        {
          "id": "solenoid_valve_inlet",
          "protocol": {
            "type": "pneumatic",
            "role": "input"
          },
          "requires": [
            {
              "function": "pneumatic_connection",
              "count": 1
            }
          ],
          "constraints": [
            {
              "thread_standard": "NPT"
            },
            {
              "thread_size": "1/4\""
            },
            {
              "thread_gender": "male"
            },
            {
              "max_pressure_bar": "<=10.0"
            },
            {
              "compatible_fluids": "compressed_air"
            }
          ],
          "max_instances": 1,
          "description": "Solenoid valve inlet (pressure supply input)",
          "name": "Solenoid Valve Inlet"
        },
        {
          "id": "solenoid_valve_outlet",
          "protocol": {
            "type": "pneumatic",
            "role": "output"
          },
          "requires": [
            {
              "function": "pneumatic_connection",
              "count": 1
            }
          ],
          "constraints": [
            {
              "thread_standard": "NPT"
            },
            {
              "thread_size": "1/4\""
            },
            {
              "thread_gender": "male"
            },
            {
              "max_pressure_bar": "<=10.0"
            },
            {
              "compatible_fluids": "compressed_air"
            }
          ],
          "max_instances": 1,
          "description": "Solenoid valve outlet (controlled output when energized)",
          "name": "Solenoid Valve Outlet"
        }
      ],
      "metadata": {
        "working_medium": "compressed_air",
        "max_pressure_bar": 10,
        "working_medium_temperature_C": [
          0,
          60
        ],
        "valve_type": "normally_closed",
        "actuation": "solenoid"
      }
    },
    {
      "domain": "mechanical",
      "resources": [
        {
          "id": "valve_body",
          "functions": [
            {
              "name": "mounting"
            }
          ],
          "material": "aluminum_alloy",
          "dimensions_mm": {
            "length": 45,
            "width": 25,
            "height": 35
          },
          "weight_g": 120,
          "description": "Aluminum alloy valve body with mounting holes"
        }
      ],
      "interfaces": [],
      "metadata": {
        "mounting_method": "bracket",
        "orientation": "any"
      }
    },
    {
      "domain": "thermal",
      "resources": [],
      "interfaces": [],
      "metadata": {
        "operating_temperature_C": [
          0,
          60
        ],
        "storage_temperature_C": [
          -20,
          80
        ],
        "coil_temperature_rise_C": 40
      }
    }
  ],
  "design_rules": [
    "Provide a proper 24V DC drive circuit (e.g., transistor or relay) with a flyback diode across the coil to protect electronics",
    "Do not continuously energize the coil beyond its rated duty cycle to avoid overheating (coil may get hot during extended on periods)",
    "Ensure both valve ports are connected or one is safely vented with a muffler when the valve opens, to avoid uncontrolled release of air"
  ],
  "validation_requirements": [
    "Verify the power supply is 24V DC and can source ~0.5 A for the coil inrush/current",
    "Check that the valve's pressure rating (typically up to ~145 psi) exceeds the system's operating pressure",
    "Confirm the thread type (1/4\" NPT) matches the mating plumbing; use thread sealant to prevent leaks"
  ],
  "usage_notes": "This solenoid valve acts as an on-off switch for airflow. In a normally-closed configuration, no air passes until the coil is energized. It can be used to remotely control cylinders, purge lines, or any pneumatic flow. Mount the valve in any orientation (vertical mounting may slightly affect response time). A small amount of clicking noise is normal when the valve actuates.",
  "application_examples": [
    "A remote dump valve: one port connected to a pressurized chamber, the other port fitted with a muffler; energizing the solenoid vents the chamber to atmosphere",
    "Automated on/off control of air supply to a pneumatic cylinder in a robotics application",
    "As a safety shutoff valve that cuts off air supply when power is removed"
  ],
  "compatibility_notes": "Works with dry compressed air (lubricated or unlubricated). Not suitable for dirty or wet air without filtration (particles can clog the orifice). The coil is rated for 24V DC; using other voltages requires the appropriate coil variant. Ports are standard 1/4 NPT – adapt as necessary for metric or BSP systems.",
  "warnings": [
    "Ensure the coil wires are insulated and strain-relieved; a short or disconnection will cause loss of control or potential damage",
    "If used with high pressure or large volumes, the sudden release of air can be forceful – use an appropriate muffler to reduce noise and turbulence",
    "Before servicing, disconnect power and depressurize the system – the valve can remain pressurized even without power"
  ]
}