Water working pressure rating - 175 psi (12 bars). Factory tested hydrostatically to 500 psi (34 bars). Maximum low temperature glass bulb rating is -55°C. Frame - bronze. Deflector - brass. Screw - brass. Bulb seat - copper. Spring - nickel alloy. Seal - teflon. Bulb - glass with alcohol based solution, 3mm size. Escutcheon assembly - steel. Classification: intermediate. Available sprinkler temperatures: 79°C. Bulb color: yellow. N.F.P.A. maximum ceiling temperature: 66°C. K factor: 4.9(68 metric). Thread size: 1/2" NPT. Length: 2 ½".
The Globe Fire Sprinklers GL4910 Fire Sprinkler name is one of 73 Fire Sprinklers from Globe Fire Sprinkler Corporation featured on TheBigRedGuide.com. View technical specifications and compare the GL4910 with other Fire Sprinklers.