HTS Eclipse – Open Burner Nozzles

Overview

Eclipse Open Burner Nozzles — available in Sticktite and Ferrofix designs — are flame retention type nozzles engineered for use wherever an open-type nozzle is applicable. Both designs operate with balanced or negative pressure combustion chambers and are compatible with any air/gas mixing device capable of delivering a combustible mixture at the required pressure, including low and high pressure injectors, proportional mixers, and Variset® mixers.

The Sticktite nozzle is available in cast iron and heat-resisting alloy with female threads, covering ten pipe sizes from 1/2″ through 6″. The Ferrofix nozzle features a steel shell with male threads in three thread configurations (short thread, long thread, and threaded at both ends), available in thirteen pipe sizes from 1/4″ through 6″. Both nozzle families share a built-in flame retention feature that ensures stable operation across a wide range of mixture pressures and draft conditions.

Features & Benefits

• Flame retention design ensures stable operation over a wide range of mixture pressures and draft conditions
• Sticktite nozzles available in cast iron and heat-resisting alloy with female pipe threads in ten sizes (1/2″ through 6″)
• Ferrofix nozzles available in steel with three thread configurations — short thread (Type 1), long thread (Type 2), and threaded at both ends (Type 3) — in thirteen sizes (1/4″ through 6″)
• Sticktite alloy nozzles available in 1/2″ through 2-1/2″ sizes (Type 1 only)
• Wide capacity range: Sticktite from 37,000 BTU/hr (11 kW) to 5,250,000 BTU/hr (1,540 kW) at 6″ w.c. mixture pressure; Ferrofix from 6,090 BTU/hr (2 kW) to 5,700,000 BTU/hr (1,670 kW) at 6″ w.c.
• Combustion blocks available for adaptation to refractory-lined combustion chambers
• No combustion block required for standard operation
• Compatible with premix air/gas systems — eliminates need for dedicated air supply at the burner

Technical Specifications

• Combustion chamber pressure requirement: balanced or negative pressure
• Sticktite pipe sizes: 1/2″ through 6″ (10 sizes); connection: female thread
• Ferrofix pipe sizes: 1/4″ through 6″ (13 sizes); connection: male thread (steel shell)
• Ferrofix thread types: Type 1 – short thread; Type 2 – long thread; Type 3 – threaded at both ends
• Sticktite capacity at 6″ w.c. (15 mbar): 37,000 BTU/hr (11 kW) to 5,250,000 BTU/hr (1,540 kW) — natural gas, 0.6 Sp. Gr., 8:1 air/gas ratio
• Ferrofix capacity at 6″ w.c. (15 mbar): 6,090 BTU/hr (2 kW) to 5,700,000 BTU/hr (1,670 kW) — natural gas, 0.6 Sp. Gr., 8:1 air/gas ratio
• Sticktite flame length range: 8 inches (200 mm) to 10-1/2 feet (3.2 m) depending on nozzle size and mixture pressure
• Compatible mixing devices: low and high pressure injectors, proportional mixers, Variset® mixers
• Materials: cast iron, steel, and heat-resisting alloy (application dependent)

Applications

• Boiler conversions
• Industrial kilns
• Ovens
• Air heaters
• Furnaces
• Immersion heating
• Any application with balanced or negative combustion chamber pressure where slight excess air around the burner is acceptable

Models / Configurations

• Sticktite (Steel) – Cast iron body with female threads; ten pipe sizes from 1/2″ to 6″; suitable for standard industrial combustion environments
• Sticktite (Alloy) – Heat-resisting alloy body with female threads; available in 1/2″ through 2-1/2″ sizes for high-temperature applications
• Ferrofix Type 1 – Steel shell with male short thread; thirteen pipe sizes from 1/4″ to 6″; alloy versions available in 1/2″ through 2-1/2″
• Ferrofix Type 2 – Steel shell with male long thread; thirteen pipe sizes from 1/4″ to 6″
• Ferrofix Type 3 – Steel shell threaded at both ends; thirteen pipe sizes from 1/4″ to 6″

Eclipse Open Burner Nozzles Accessories

• Combustion Blocks – Refractory combustion blocks available for adapting nozzles to furnace, kiln, or other refractory-lined combustion chamber installations
• Variset® Mixers – Compatible premix air/gas mixing devices for delivering combustible mixture at required operating pressures
• Low and High Pressure Injectors – Compatible air/gas injector mixers for use with Sticktite and Ferrofix nozzles
• Proportional Mixers – Compatible ratio mixing devices suitable for use with the open burner nozzle series

Additional Information

• Flame monitoring is required — it is dangerous to operate any fuel burner without suitable flame sensing device(s) and automatic fuel shut-off valve(s)
• Thermocouple flame monitoring must not be used on burners with capacities greater than 150,000 BTU/hr (44 kW)
• Eclipse (Honeywell Thermal Solutions) can supply compatible flame monitoring systems
• For air/gas ratios other than 8:1, refer to the multifactor chart in Bulletin 440

Documentation