Some New Brazing Equipment

[Brettbeck]

Well about a month ago I got a BOC Saffire welding torch off ebay. After my exams finished, I started getting the rest of the parts, working towards an oxy-propane brazing setup.

This morning we went to our local BOC place…







And now my brazing setup looks like this…apart from when I got home and set everything up, the 19Kg propane bottle was empty. So 30 minutes later, we went and got another one . Also swapped a small butane bottle we had for a propane one (for charging).



The kit consists of;

- BOC Oxygen Bottle, Size X (230bar). This is rated at 8hours continuous welding…so god knows how long it will last for brazing !
- 19Kg Propane Bottle
- BOC Saffire Lite welding torch, with propane mixer
- 5m oxy-acetylene hose, 3/8” fittings
- BOC 8000 Series oxygen regulator, single-stage (300bar inlet, up to 10bar outlet)
- BOC 6000 Series propane regulator, single-stage (25bar inlet, up to 4bar outlet)
- BOC resettable oxygen flashback arrestor
- Fuel gas resettable flashback arrestor (I forget which make)

I’m VERY pleased with the setup. The guy down at BOC was so friendly and was willing to help us with anything. These regulators are awesome too, i'd recommend them to anyone. Went for these rather than ‘x brand’ ones for the safety aspect, as well as using resettable flashback arrestors .

Here are some more pictures…

BOC Series 8000 oxygen regulator;




BOC Series 6000 propane regulator;


Oxygen cylinder chained to the trolley, and wedged in with the other bottles. It may look slightly insecure, but it wont be falling over.


Saffire torch;



First time we started it, we were using a very small pressure of both gases, and within 5seconds of the flame being on some ¼” copper pipe, it melted straight away, on the carpet . Oops!

I have a quick question to anyone who uses oxygen and a fuel gas for brazing. What output pressures do you use on each gas?


Cheers,
Brett