Characteristics
A Direct mounting type burner-fitting the burner tile to the furnace wall. The burner heats the tile and furnace wall circularity, and the heat emitted from them heats the material. Hybrid type to be used for combustion with gas and oil only either of them.
Specifications / Shape dimension
Specifications
| Fuel | Kerosene、Light Oil、Fuel Gases |
| Standard Pressure | Gas 2～10kPa Air 6kPa Oil 50kPa Atomizing Air 13kPa |
| Accessories | Regulating Cock |
※ When using gas only, set the atomizing air pressure to same value for the air pressure.
| Type | Capacity kW （×1,000kcal/h） |
Air Flow Rate（Nm3/h） | Connection | ||||
| Air | Atomizing Air |
Air | Atomizing Air |
Gas | Oil | ||
| NBF-1F | 58（50） | 60 | 2.7 | Rc 1 1/2 | Rc 1/2 | Rc 1 | Rc 3/8 |
| NBF-2F | 116（100） | 120 | 3.0 | RC 2 | |||
| NBF-3F | 233（200） | 240 | 5.2 | Rc 2 1/2 | Rc 3/4 | Rc 1 1/2 | |
| NBF-4F | 350（300） | 360 | 8.0 | RC 3 | |||
| NBF-5F | 580（500） | 600 | 30.0 | 100A(JIS5K) | Rc 2 | ||
※ NGF-5F are flanged for connection to the air.
Dimension
| Type | A | B | C | C´ | D | E | F | G | H |
| NBF-1F | 616 | 148 | 142 | 242 | 101 | 69 | 93 | 63 | 17 |
| NBF-2F | |||||||||
| NBF-3F | 778 | 205 | 175 | 275 | 138 | 94 | 103 | 20 | |
| NBF-4F | |||||||||
| NBF-5F | 862 | 235 | 217 | 317 | 150 | ||||
| ※ C’ is the dimension of the Extension body specifications. | |||||||||
| Type | J | K | L | M | N（G） | P | Q | R | S | Mass (kg) |
| NBF-1F | 135 | 81 | 35 | 32 | 3/4 | 250 | 320 | 350 | 15 | 51 |
| NBF-2F | 146 | |||||||||
| NBF-3F | 180 | 102 | 45 | 350 | 410 | 450 | 19 | 92 | ||
| NBF-4F | 182 | |||||||||
| NBF-5F | 150 | 80 | 1 | 400 | 460 | 500 | 143 |
Download of DXF data
※ Download procedure
- Put the cursor on the model designation of the outline drawing you want to download, and click the right button of the mouse.
- Select “Save Target As (A)” on the menu.
- Select a location to save, and click “Save.”
※ Some security software does not permit downloading. If that happens, set the securities to “OFF” before downloading.
Flame Pattern
| Condition | |
| In the Air | |
| Air Pressure | 6kPa |
| Fuel | Kerosene |
| Excess Air Ratio | 1.1 |
| Type | ØD （mm） | L （mm） | L1 （mm） |
| NBF-1F | 350 | 60 | 160 |
| NBF-2F | 450 | 80 | 160 |
| NBF-3F | 600 | 90 | 220 |
| NBF-4F | 650 | 110 | 220 |
| NBF-5F | 700 | 150 | 250 |