Application: Double Inlet FD connection with 500 GPM inlet capacity used to supplement water supply in standpipe or sprinkler systems. Body comes with a single swing clapper to prevent water from exiting the second inlet when not in use. Body standard with (2) 2 ½” (65mm) swivel hose thread inlets c/w brass plugs or red aluminum break off caps. Base with 4” (100mm) female NPT. Standard plate lettering is “Auto. Spkr.”, “Standpipe” or combined “Auto. Spkr / Standpipe”.
Construction: Cast brass body with red aluminum plate and caps.
Rated Pressure: 300 PSI /2068.50 kpa
Approvals: ULC, UL, FM