Pressure Reducing and Restricting Devices

Models SD-A155 and SD-A156, angle type bronze pressure restricting valve combining shut-off and pressure reducing features, for installation on standpipe systems. Size 1 1/2 for Class II systems, Size 2 1/2 for Class I or III as defined in NFPA 14 having a rated inlet pressure of 175 psi; pressure reduction to 80 psi.

The manufacturer's installation instructions include a description of the performance characteristics of these valves under both static and flowing conditions.

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