ST815 - Smith ST815 Heavy Duty Propylene Heating Tip Assembly

Technical Overview of the Smith ST815 Heating Tip

The Smith Equipment ST815 is a heavy-duty heating tip assembly engineered specifically for use with propylene-based fuel gases. Designed to facilitate high-performance heating operations, this unit operates on a medium-pressure mixing principle, ensuring a stable and efficient flame structure. The assembly includes both the nozzle and the tip, providing a complete solution for industrial heating requirements. With a substantial heating capacity rated at approximately 273,000 BTU/hr, the ST815 is capable of delivering intense thermal energy required for demanding applications such as preheating heavy plate, bending, and straightening structural steel.

This heating tip is explicitly compatible with Smith Equipment's heavy-duty torch handles, specifically the WH200 and SW1B models. The overall length of the assembly measures 20-1/2 inches, providing sufficient reach for operators while maintaining balance during use. It is critical to note that due to the high volume of gas flow required to sustain the 273,000 BTU output, this tip must be used in conjunction with high-flow flashback arrestors. Standard arrestors may restrict flow, potentially leading to flame instability or starvation. Operators may need to adjust outlet pressures to compensate for any flow restrictions introduced by safety devices. The ST815 represents a robust solution for fabrication shops utilizing propylene for its high heat transfer properties and cost efficiency compared to acetylene.