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  1. Nandaem

    Aged Fire piping hydrotest

    Thank you all for your highly valuable inputs ! Since it is fire piping, we can refer NFPA 13/25 which allows hydro testing at Max operating pressure plus 50psi which is 17bar as rightly suggested by 1503-44 The nearest Indian equivalent IS 13039 section 7.1 also calls for 1.5X OP. EdStainless...
  2. Nandaem

    Aged Fire piping hydrotest

    Indeed ! We are considering many options among which changing the water source to Municipal supply is one / treat the bore well well water is another
  3. Nandaem

    Aged Fire piping hydrotest

    A large high rise apt community in India following IS ( mostly follow British Stds) codes is facing corrosion of 110m high of 3 X 6" CS fire mains filled with untreated bore well water in storage tanks per original flawed design. Its only 2 yrs old.The builder wants to replace corroded portion...

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