Rank: Forum user 
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All - does anyone have any clear defined gudance on safe distances (exclusion zones) for hydrostatic testing. A lot of debate going on in our team and all I can fine is a 50feet/15meter rule as a minimum but it doesn't tell me what that is based on..
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Rank: Super forum user 
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The 50 feet hydro is a generic. Lloyds Register 96-02 offers a calculation: Safe distance = (0.15)x(D)x(a)0.4x(P/3√p)0.6 D – internal diameter (m) a – length of system (m) / internal diameter of piece (m) P – Test pressure (bar) p – Density of test fluid (water = 1)
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Rank: Super forum user
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The 50 feet hydro is a generic. Lloyds Register 96-02 offers a calculation: Safe distance = (0.15)x(D)x(a)0.4x(P/3√p)0.6 D – internal diameter (m) a – length of system (m) / internal diameter of piece (m) P – Test pressure (bar) p – Density of test fluid (water = 1)
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Rank: Super forum user
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The 0.4 and 0.6 were meant to read as superscript as in "raised to the power of"
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 2 users thanked Roundtuit for this useful post.
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Rank: Super forum user
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The 0.4 and 0.6 were meant to read as superscript as in "raised to the power of"
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2 users thanked Roundtuit for this useful post.
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