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What is Flow Restrictor Orifice Calculation Guide about?

This document describes how to calculate the diameter of a flow restriction orifice to reduce the pressure and flow rate of the sprinklers in a fire protection system. It explains that the orifice will be placed in the main pipe after the branch from the cabinet. It then details the iterative calculation process using equations that involve pressure drop, flow velocity, discharge coefficient, and the relation of the orifice diameter to that of the pipe, until convergence.

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ScribdTranslations

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