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Plumbing Processes

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

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Pipework

Installation

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Notching (BS 6700 Approved Document A – Building Regulations)
  • MAX 1/8th thickness of the joist
  • 0.07-0.25 part of the run
Drilling
  • MAX 1/4th thickness of the joist
  • MIN 50mm above and below the hole
  • 0.25-0.4 part of the run
  • MIN 3D (the biggest hole) from centre to centre
Chasing
  • MAX 1/3rd thickness of the wall for vertical
  • Max 1/6th thickness of the wall for horizontal

notches_and_holes

Hot and Cold Water Pipes in Solid Floors
  • Pipe in purpose made duct
  • Removable cover
  • Insulated
  • Clipped
  • Central heating pipes are permitted in chases

pipework_installation_solid_floors

 

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