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Is the Riser Main Drain Valve required to be an angle valve or are other types acceptable?

Question asked by Rafael T Villamil on Jul 8, 2016
Latest reply on Jul 8, 2016 by Paul Smith


NFPA 13 (2007) figure 8.16.2.4 indicate an angle valve for the main drain connection. Is this the only acceptable type of valve?

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