TAC-25 is a safety shut off control system for medium pressure gas combustion equipment that combines shut off valves, a governor and a pressure gauge. It has a double shut off function, a governor function, a pressure gauge and pressure detection ports, with inlet 25A and outlet 40A (JIS flange). It is used for city gas, natural gas and LPG.
| Working Fluid | City gas / natural gas / LPG |
| Configuration | Shut off valve + governor + pressure gauge (combination of VNM, VLM and C25N-B) |
| Actuation | NC (open when energized) |
| Working Pressure | 0.1 to 0.2 MPa (secondary pressure 1.5 to 5 kPa, flow rate 2 to 40 m³/h) / 0.1 to 0.3 MPa (secondary pressure 5 to 60 kPa, flow rate 10 to 120 m³/h) |
| Flow Rate Conversion Coefficient (multiply flow rate in table) | Natural gas (13A) 1.0, city gas (6B/6C) 1.09, propane 0.63, butane 0.57, butane-air (6A) 0.72 |
| Rated Voltage | 100 VAC ±10%, 200 VAC ±10% (common to 50 and 60 Hz) |
| Power Consumption (apparent power) | 82×2 VA |
| Ambient Temperature | -20 to 60 °C (no freezing) |
| Opening Time / Closing Time | Approx. 10.0 s (adjustable) / 1.0 s or less |
| Frequency | 1 cycle/min. or less |
| Start Gas Adjustment / Re-energizing Intermission Time | 0 to 50% / 5.0 s or more |
| Mounting Orientation | Vertical direction with the coil up or horizontal direction with the coil horizontal |
| Connection / Port Size | Flange (JIS10KRF) / inlet 25A, outlet 40A |
| Weight | 23.0 kg |
| Degree of Protection | IPX4 |