COLLECTION 01 / BRAZING
BRAZING NOZZLES
Brazing nozzles are the workhorses of oxy-fuel work: they hold a stable flame that heats the joint and melts the brazing rod without burning the base metal. Sized by British No. series, they suit oxy-acetylene and oxy-propane rigs - pick the size for your joint, not your torch.
INDICATIVE SIZING - THE JOB EACH NUMBER IS FOR
| NO. | TYPICAL BRAZING JOB |
|---|---|
| No. 5 | Very light work on fine assemblies and thin-wall tube |
| No. 10 | Small fittings, capillary joints and general light brazing |
| No. 13 | General brazing of copper, brass and steel up to medium section |
| No. 16 | Heavier joints, larger fittings and light pre-heat |
| No. 20 | Heavy brazing on thick section and large fittings |
| No. 25 | Heaviest brazing and substantial pre-heat work |
Orifice and flow figures vary by head and by gas (acetylene or propane). Tell us the number you work with and we confirm the exact figures for your set-up before you order.
In stock now: the EN417 cartridge torch head and its two kits. Brazing numbers from this series are matched on request while we add stock.
CHOOSE THE BRAZING NOZZLE BY THE JOB
- Confirm that the joint actually needs brazing rather than soft soldering or fusion welding. The filler, base metal and required joint strength decide the process before the nozzle number does.
- Estimate the mass of metal you need to heat. A small fitting loses less heat than a heavy assembly, so a larger section generally needs a larger nozzle number.
- Choose the flame for even heating around the joint. The aim is to bring the base metal up evenly so the filler flows, not to hold a fierce flame on one spot.
- Check the seat against your torch before ordering. A useful nozzle number with the wrong seat is still the wrong part; send the torch model or old nozzle if you are unsure.
QUESTIONS
Does a bigger nozzle number always mean faster brazing?
Only when the joint has enough mass to use the extra heat. Too much heat on a small fitting can burn flux and overheat the work. Match the nozzle to the section, not to a desire for the biggest flame.
Can I use the same number for welding and brazing?
The number belongs to a nozzle family and job range, not a universal process setting. Confirm the nozzle type and seat as well as the number before substituting one for the other.
How do I find my existing nozzle number?
Look for a stamp on the old nozzle and clean it gently if dirt hides the mark. If there is no readable number, send a photo of the old part and the torch model for matching.
Can you confirm the orifice and gas flow?
Yes, for the exact nozzle being quoted. These figures vary by design and gas, so we confirm them per order rather than publishing an invented universal table.