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Plumbing Processes

Exam revision materials for Plumbing Level 2&3 and ACS Gas Safety test

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Plumbing Materials

Jointing Materials

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  • Soft solder [BS EN 29453]
    • Capillary jointing of copper
    • Type 23 or 24 tin/copper alloy
    • Type 28 or 29 tin/silver alloy
  • Silver solder (silver brazing metal;BS 1845:table2 )
    • Capillary jointing of copper
    • Type AG14
    • Type AG20
  • Copper phosphorous brazing filler metals [BS 1845:table3]
    • Brazing alloys should be free from Cadmium
    • Type CP1 to CP6
  • Jointing compounds [BS 6956:part5]
    • Sealing screwed water fittings
  • PTFE tape (un-sintered polytetrafluoroethylene tape; BS 6974 and BS 6920:part1)
    • Thread-sealing applications
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