Technical Information - Autotorch Brazing Sys

Gas supply for Autotorch brazing system

The torch must be used with propane only at 4 bar pressure. We recommend the brazing regulator No.4041 which is already fitted to the kit.

Cylinders

Any standard propane cylinder.

Hose

4.8mm high pressure hose to BS.3212/2 (no.1299) only must be used, with suitable hose clips

Flashback arrestors

These are NOT required for Bullfinch propane-air torches.

To check the spark

Turn off the gas using the valve with the screw down knob and disconnect the burner. Find a piece of metal to bridge the gap between the burner connection on the handle and the spark point on the hande. Rest the metal on the connection and a few millimetre from the spark point and and push the red button a few times to see if there is a spark. See video by clicking here: Check spark