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Single clapper siamese connections straight back outlet
Made of cast brass
Size: 4" NPT female x 2-1/2" NST (NH) female
Maximum 250 psi pressure
Single swing clapper with two pin lug swivel inlets
Single clapper siamese connections straight back outlet. Made of cast brass. Maximum 250 psi pressure. Single swing clapper with two pin lug swivel inlets. Provides the required 500 gpm minimum to supplement the fire protection as an auxiliary inlet connection to the water supply (250 gpm minimum per inlet). The swing clapper design provides an unobstructed waterway. Exposed fire department connections (FDC) provide an economical method to satisfy local fire codes. Branding: auto-spkr only. Underwriters listed and factory mutual approved. For use up to 250 psi at ambient temperature (70 degree F).