12-1402-04 - Smith Little Torch #4 Twin Flame Heating Tip, 4300 BTU

Precision Heating with the Smith Little Torch Twin Flame Tip #4

The Smith Little Torch #4 Twin Flame Tip (SKU: 12-1402-04) is a highly specialized component designed to expand the thermal capabilities of the industry-standard Little Torch system. Engineered for professionals requiring precise thermal management, this tip features a dual-outlet configuration that generates two opposing flames. This architecture creates a comprehensive thermal envelope, allowing for the even application of heat around cylindrical workpieces. With a thermal output rating of 4,300 BTU/hr, the #4 tip is calibrated to bridge the gap between micro-precision jewelry applications and light-industrial fabrication tasks, such as HVAC repair and plumbing.

Technically, the tip utilizes a precision-drilled orifice with a diameter of 0.020 inches (Drill Size 76), ensuring a laminar gas flow and a stable flame profile. It is designed to operate optimally at low pressures, requiring only 5 PSI for both oxygen and the chosen fuel gas. This low-pressure operation allows for exceptional control over the heat affected zone (HAZ), minimizing the risk of overheating sensitive components adjacent to the work area. The consumption rates are engineered for efficiency, drawing approximately 2.91 cubic feet per hour (CFH) of fuel and 3.49 CFH of oxygen, maintaining a stoichiometric balance that produces a clean, neutral flame suitable for melting commercially weldable metals, glass, and ceramics.

A defining feature of the 12-1402-04 is its universal fuel gas compatibility. Unlike tips restricted to a single fuel source, this component is fully compatible with Acetylene, Hydrogen, MAPP®, Propane, Propylene, and Natural Gas. This versatility ensures that operators can integrate the tip into their existing gas distribution setups without the need for specialized fuel sources. The twin flame design is particularly advantageous for brazing copper piping ranging from 1/4 inch to 5/8 inch in diameter, as the dual heat source promotes rapid capillary action of the brazing alloy, ensuring sound, leak-proof joints. Each tip undergoes rigorous 100% flame testing at the manufacturing facility to guarantee performance consistency and adherence to Smith Equipment's strict quality assurance protocols.