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| solder a boiler |
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| John Rudd:
--- Quote from: speedibee on November 05, 2018, 03:54:45 PM ---I have made a replacement boiler for a small static engine that belonged to my father . basicly it's a brass tube with 1.5 mm wall . with 2 end caps . will this need silver solder or would normal solder do ? --- End quote --- Contrary to what others would have you believe, ordinary tin/lead solder would suffice, BUT it depends on the working pressure and the safety valve release pressure. As an example, the makers of Meccano/Mamod used soft solder for their brass boilers but the relief pressures are fairly low at around 20-25 psi and the heating system is such that the fuel runs out before the boiler runs dry, secondary relief is provided by the face to face surfaces of the cylinder/port block.... |
| mattinker:
--- Quote from: John Rudd on November 06, 2018, 09:29:56 AM --- Contrary to what others would have you believe, ordinary tin/lead solder would suffice, BUT it depends on the working pressure and the safety valve release pressure. As an example, the makers of Meccano/Mamod used soft solder for their brass boilers but the relief pressures are fairly low at around 20-25 psi and the heating system is such that the fuel runs out before the boiler runs dry, secondary relief is provided by the face to face surfaces of the cylinder/port block.... --- End quote --- You got there before me! I can concur, I remembered the soft solder Mamod stream engine that I had as a child! Regards, Matthew. |
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