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Valves covered by these requirements may be of differential type, latched-clapper type, low-differential type, or combinations of these types.
Requirements for the installation and use of the valves covered by these requirements are included in the Standard of the National Fire Protection Association for the Installation of Sprinkler Systems, NFPA No. 13. Published 2/28/1975.Valves covered by these requirements may be of differential type, latched-clapper type, low-differential type, or combinations of these types.
Requirements for the installation and use of the valves covered by these requirements are included in the Standard of the National Fire Protection Association for the Installation of Sprinkler Systems, NFPA No. 13. Published 2/28/1975.