Pre-mix torch

Pre mix torch: A torch in which the oxidizing and fuel gases are mixed in a chamber prior to exiting the face of the torch and undergoing combustion. These types of torches are commonly used in welding. Pre-mix torches must have flashback arrestors, and or check valves to prevent the ignited gases from traveling back to the tanks.

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Examples

National/premier industres - 3a/3b hand torchs, rider torch , and prmix 8m adaptor.

Smith - little torch, cutting torchs

Hoke - hand torch

Carlise- center fire of most 2 stage torchs, hand torchs

Nortel - unitorch , various hand torchs , and rider option on over under fire torchs.

Many ribbon and ring burners are also pre-mixes.