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Old 06-17-19, 10:42 PM
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gugie 
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Originally Posted by bark_eater View Post
Quick question about Mapp gas Turbo Torches. Would a bigger "Tip" burning more gas be better for doing brass brazing jobs like cantilevers?

Victor Turbo Torches have interchangeable tips. The largest is a 1" T-6. The specs are here:
  • T-6 tip pipe sizes (Soft Solders): 1-1/2" - 4" (38 - 102 mm) for Propane
  • 1-1/2 to 6" (38-152 mm) for MAP-Pro
  • T-6 Pipe sizes (Silver Brazes): 3/4" to 2" (19 - 50 mm) for Propane
  • 3/4" to 4" (19-102 mm) for MAP-Pro
  • T-6 tip gas flow: 2.10 scfh @ 24 psi (Propane)
  • 2.5 scfh @ 42 psi (MAP-Pro)
The 1/2" T-4 looks to closer to a standard torch tip specs:
  • T-4 tip pipe sizes (Soft Solders): 1/4" to 1-1/2" (6.4 - 38 mm) for Propane
  • 1/4" to 2-1/2" (6.4-64 mm) for MAP-Pro
  • T-4 tip pipe sizes (Silver Brazes): 1/4" to 3/4" (6.4-19 mm) for Propane
  • 1/4" to 1-1/4" (6.4-32 mm) for MAP-Pro
  • T-4 tip gas flow: 0.39 scfh @ 24 psi (Propane)
  • 0.48 scfh @ 42 psi (MAP-Pro)
I'm not an expert on tip variation, but for brass on cantilevers, I was taught that you want a tight flame and get it in close - I think a smaller tip keeps the meat just where you want it without overheating the rest of the tube. But note that I'm basing this on an OA setup.
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