Water Hammer Valve Closing Time
Water Hammer Valve Closing Time Formula |
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\(\large{ t = \frac{ 0.070 \;v \;l }{ p_{inc} \;-\; p_i } }\) | ||
Symbol | English | Metric |
\(\large{ t }\) = valve closing time | \(\large{sec}\) | \(\large{s}\) |
\(\large{ v }\) = flow velocity | \(\large{\frac{ft}{sec}}\) | \(\large{\frac{m}{s}}\) |
\(\large{ p_i }\) = inlet pressure | \(\large{\frac{lbf}{in^2}}\) | \(\large{Pa}\) |
\(\large{ p_{inc} }\) = pressure increase | \(\large{\frac{lbf}{in^2}}\) | \(\large{Pa}\) |
\(\large{ l }\) = upstream pipe length | \(\large{ft}\) | \(\large{m}\) |