13254-4-8 - Smith Little Torch 8ft Replacement Twin Hose with B-Fittings

Technical Overview of the Smith 13254-4-8 Replacement Hose

The Smith Equipment 13254-4-8 is a specialized replacement twin hose assembly designed exclusively for the Smith Little Torch™ system. Engineered to meet the rigorous demands of precision brazing, soldering, and welding applications, this hose assembly maintains the high standards of safety and performance associated with the Miller/Smith brand. The assembly features a Siamese (twin) construction, bonding the oxygen and fuel lines together to prevent tangling while maintaining individual line integrity. The hose length is specified at 8 feet (2.4 meters), providing a balance between benchtop reach and minimizing pressure drop across the line.

Technically, this hose is distinguished by its termination points. The regulator end is equipped with standard "B" size fittings (9/16"-18 threads), which is the industry standard for most industrial and commercial gas regulators in North America. This ensures broad compatibility with existing gas supply setups without the need for additional adapters. The torch end is designed to interface directly with the Little Torch body. The hose material is formulated to be compatible with a wide spectrum of fuel gases, including Acetylene, Hydrogen, Propane, Propylene, and Natural Gas. This versatility is critical for workshops that may utilize different fuel sources for varying material applications, such as melting platinum versus soldering silver.

Safety and compliance are paramount in the design of the 13254-4-8. The hoses are color-coded according to industry conventions—Green for Oxygen and Red for Fuel Gas—to prevent cross-connection errors during setup. The hose material offers excellent flexibility, a crucial specification for the Little Torch, which is often held like a pencil for hours at a time. Stiff or heavy hoses can lead to operator fatigue and loss of precision; this replacement part replicates the original equipment's lightweight feel. The package includes the necessary connecting tool, ensuring that the user can perform the replacement according to manufacturer torque specifications.