MW209 - Smith MW209 Medium Duty Acetylene Welding Tip 3/8 Inch Capacity

Smith MW209 Medium Duty Welding Tip Overview

The Smith MW209 is a specialized medium-duty welding tip from the MW200 Series, engineered to provide professional-grade performance in oxy-acetylene welding applications. This specific nozzle is designed to weld steel thicknesses up to 3/8 inch (10 mm), making it a versatile component for fabrication, repair, and maintenance tasks. The tip features a 63-1/2 degree bend angle, optimized for ergonomic torch positioning during flat and horizontal welding operations.

Technically, the MW209 distinguishes itself with Smith's proprietary "Soft Flame" design. Unlike standard tips that may produce a harsh, turbulent flame, the MW209 delivers a concentrated yet stable heat source. This reduction in turbulence is critical for maintaining a consistent weld puddle, ensuring deep penetration without the erratic behavior often associated with high-pressure gas flows. The tip is constructed from heavy-wall copper, a material choice that significantly enhances thermal conductivity. This design allows the tip to dissipate reflected heat more effectively than thin-wall competitors, maintaining cooler operation temperatures even during prolonged use.

The assembly mechanism utilizes Smith's Slip-In design, which relies on a hand-tightened connection rather than threaded wrench fittings. This system employs replaceable O-rings (Part No. MW15) to maintain a leak-proof gas seal. The tip is compatible with a range of Smith torch handles, specifically the MW5, WH100, MW5A, and CW5A models. While primarily calibrated for Acetylene gas, the manufacturer notes that these tips may be utilized for brazing applications with Liquid Air Fuel-Gas or propylene-based fuel gases; however, operators must select a tip size two sizes larger than recommended for acetylene to achieve comparable thermal output.

Maintenance of the MW209 is facilitated by its long straight-away geometry, which permits refacing of the tip end if it becomes damaged or worn over time. This feature, combined with the robust copper construction, ensures a long service life and reduces the total cost of ownership for industrial users requiring reliable medium-duty welding consumables.