MRC:
A recording of the physical,functional,and performance characteristics for an item of supply.TEXT
General Description:
Steam operated; operating valve data, valve integral w/siren body, inlet connection, flange, style no. 1, section b, ref dwg group 43, 1-1/2 in. Pipe size, flanged connection, 4-5/8 in. Od, 13/16 in. Thk, 3-1/2 in. Diameter bolt circle, 4 holes, 5/8 in. Diameter holes; w/drain valve, pipe tap connection, 3/8 in. Size of connection; pressure data, 150 to 300 psi pressure range, 450 psi hydrostatic test pressure; projector horn data, 90 degrees angle horn, 8-3/8 in. Diameter of horn opening; bronze, finish a/a; mtg data, vertical mtg w/horn up, flange mounted; over-all dim., 22-3/16 in. High, 10-1/2 in. W; data regarding a typical mfr, star brass mfg co, boston, mass, code no. 57072, part no. Aa-7056-a; for general purpose use
