Product Description
Product Description
| Proportional valve BF40 50 |
| Function description |
| Characteristics |
| It is small with compact design. |
| It is a gas proportional valve with permanent magnet. |
| It is made with silence&hi-pressure resistant technology. |
| It is made up of a solenoid valve and an on-off proportional valve |
| It is applicable in constant temperature gas water heater whose rated heat loading is ≤26KW. |
| When the power of proportional valve is off, the valve will close automatically. |
| Main technical parameter |
| Gas applicable: LPG, NG |
| Installation position : inclination≤ 5° |
| Gas pressure allowable : ≤5KPA |
| Gas pressure allowable : ≤5KPA |
| Rated valve open voltage: DC 24V |
| Rated maintenance voltage: DC 12V |
| Valve open voltage : <21V |
| Valve releasing voltage : >DC 2V |
| Winding resistance of solenoid valve : 110Ω土10%(20°C) |
| Winding resistance of proportional valve : 85Ω±10%(20°C） |
| Activating current of proportional valve : DC 0~270 mA |
| Valve open voltage of proportional valve : < 130 mA |
| Releasing current of proportional valve : > 30 mA |
| Insulation resistance : > 100MΩ |
| External leakage : ≤ 0.3ml/min(with 10kPa pressure) |
| Internal leakage (on-off valve) : ≤ 0.3ml/min(with 10kPa pressure) |
| Internal leakage (proportional valve) : ≤0.5ml/min(with 10kPa pressure) |
Test item in this video | Current |
| Air pressure | |
| Daily test Qty | 4000pcs |
| Pass percentage | 93-95% |
