VLA is a slow open gas shut off valve for low pressure up to intermediate pressure (25 kPa). It is NC type (open when energized) for city gas, natural gas and LPG. It takes about 10 seconds to open so the gas supply increases gradually at ignition, and the start gas amount can be adjusted from 0 to 70%. Ports range from Rp1/2 to Rp2 1/2.
| Working Fluid | City gas / natural gas / LPG |
| Actuation | NC (open when energized), slow open |
| Working Pressure | VLA-15: 0 to 25 kPa / VLA-20 to 65: 0 to 20 kPa / VLA-32-D and 40-D: 0 to 5 kPa |
| Flow Rate (natural gas specific gravity 0.65, ΔP = 0.25 kPa, m³/h (ANR)) | -15: 6.9 / -20: 14.8 / -25: 18.7 / -32: 30.3 / -40: 34.5 / -50: 70.0 / -65: 112.6 / -32-D: 45.0 / -40-D: 49.0 |
| Cv | -15: 4.6 / -20: 9.9 / -25: 12.5 / -32: 20.4 / -40: 23.2 / -50: 47.1 / -65: 75.8 / -32-D: 30.3 / -40-D: 33.0 |
| 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/-15%), 200 VAC (+10/-15%) (common to 50 and 60 Hz) |
| Power Consumption (apparent power) | VLA-15, 20 and 25: 31 VA / VLA-32 and 40: 50 VA / VLA-50: 73 VA / VLA-65: 74 VA / VLA-32-D and 40-D: 50 VA |
| Ambient Temperature | -20 to 60 °C (no freezing) |
| Opening Time / Closing Time | Approx. 10 s / 1.0 s or less |
| Frequency | 1 cycle/min. or less |
| Flow Rate Adjustment / Start Gas Adjustment | 20 to 100% (not applicable to VLA-32-D and 40-D) / 0 to 70% |
| Re-energizing Intermission Time | 5.0 s or more |
| Mounting Orientation | Vertical direction with the coil on top or horizontal direction with the coil horizontal |
| Connection / Port Size | Screw-in (Rp) / -15: Rp1/2, -20: Rp3/4, -25: Rp1, -32: Rp1 1/4, -40: Rp1 1/2, -50: Rp2, -65: Rp2 1/2, -32-D: Rp1 1/4, -40-D: Rp1 1/2 |
| Weight | -15: 1.9 kg / -20: 2.7 / -25: 2.6 / -32: 4.2 / -40: 4.1 / -50: 8.9 / -65: 15.2 / -32-D: 4.0 / -40-D: 4.0 kg |
| Proof Pressure | 0.1 MPa |
| Degree of Protection | IPX4 |