Fireye SP-48-NG-ND-0.8 SureFire Pilot Igniter
$1,728.48
The Fireye SP-48-NG-ND-0.8 ignites oil- and gas-fired main burners in natural-draught systems using natural gas at 20–46 kW. This pilot combines a 0.8 m (2.62 ft) insertion length with a 48 mm OD air tube.
Description
- Natural Gas Capacity: Delivers 20–46 kW at 20–80 kPa pressure.
- Natural Draught: Meters combustion air via a locking sleeve.
- Pilot Dimensions: Extends 0.8 m (2.62 ft) with 48 mm OD.
- Dual Operating Modes: Runs for intermittent light-off or continuous service.
- Ignition Compatibility: Accepts HESI or HTI rods up to 16 mm OD.
Technical Specifications
| Manufacturer | Fireye |
|---|---|
| Part Number | SP-48-NG-ND-0.8 |
| Type | Pilot Igniter |
| Series | Surefire II |
| Fuel / Draft | Natural Gas, Natural Draught |
| Insertion Length | 0.8 m (2.62 ft) |
| Air Tube Diameter | 48 mm OD |
| Capacity | 20–46 kW at 20–80 kPa |
| Material | 304/316 stainless steel 310/330 heat-resistant steel |
| Operating Temp | 300°C maximum continuous 500°C at the stabilizer and gas/air tube ends |
| Gas Connection | 1/2" BSP Female |
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Description
The Fireye SP-48-NG-ND-0.8 is a SureFire II natural-gas pilot igniter built for natural-draught main burners on industrial heaters, refinery furnaces, and boilers. Its 48 mm OD air tube extends 0.8 m (2.62 ft) into the burner mounting assembly, supporting intermittent light-off or continuous pilot service from 20 to 46 kW across 20–80 kPa gas pressure.
A locking sliding sleeve meters ambient air through the tube inlets to mix with fuel from the 1/2" BSP female gas port. Compatible with HESI or HTI rods up to 16 mm OD, the internal orifice-stabilizer assembly anchors the flame, while 304/316 and 310/330 stainless steels withstand 300°C continuously and 500°C at the tip.
Frequently Asked Questions
How does the Fireye SP-48-NG-ND-0.8 mount to a main burner?
The 48 mm OD stainless steel air tube can be welded directly to the burner plate or installed using an optional 55 mm OD flanged or weld-on carbon steel mounting tube.
What is the typical pilot flame length and required clearance for the Fireye SP-48-NG-ND-0.8?
Depending on gas pressure and furnace draft, the pilot flame is 0.4–0.6 m long. The air tube tip must sit at least 150 mm from the main burner flame and never project past the burner throat.
What gas supply pressure is required for the Fireye SP-48-NG-ND-0.8 to reach rated capacity?
It requires 20–80 kPa natural gas pressure at the 1/2" BSP female inlet to achieve its 20–46 kW capacity range.



