Opening of Quotations - WWTP Server Room Fire Suppression System Proj No 124-038R - Larson-Danielson

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1/4" (I FN L 18648 18649 18650 18651 nm) r Pilot Actuation End Line Tee (P/N 18611) A 1/4 in (8 mm) FNPT by MNPT brass branch tee mounts to the final pneumatic valve actuator to facilitate attach- ment of the vent check to the pilot actuation line. Flex Hose (P/N See Chart) Flex hoses are 3/16 in (7 mm) Teflon® lined stainless steel wire braided hoses of varying lengths with 1/4 in (8 mm) 37o female JIC flare fittings. They are utilized to in- terconnect cylinders when a multi -cylinder arrangement is required. A 1/4 in (8 mm) 37o male JIC flare x male JIC flare adapter (P/N 18777) is available to connect lengths of flex hose together. 16 in (406 mm) 24 in (610 mm) 34 in (864 mm) 40 in (1016 mm) SUPPLEMENTAL COMPONENTS Supplemental components complete various system arrangements. 5 �2" (133 mm) DS1258 Revised: 21-Dec-2023 r 1/4" (8 mm) FNPT Pipe Connection k 1 1/4" (32 mm) FNPT Discharge Pressure Switch (P/N 97428) The discharge pressure switch is used in the system to provide positive indication of agent discharge and to initi- ate the shut down of equipment that may deplete agent concentration. The pressure switch is a single pole, dou- ble throw (SPDT) switch with contacts rated 15 Amps at (20 mm) 125/250/480 VAC and 0.5 Amps at 125 VDC. It has a IT Conduit NEMA 4X and IP66 enclosure. inn—tinn Manifold Check Valve (P/N 18547) In a multiple cylinder arrangement where the secondary and primary cylinders share a common manifold or in a main / reserve arrangement, a 1 1/4 in (32 mm) FNPT manifold check valve must be placed between the dis- charge outlet of each cylinder and the discharge mani- fold to prevent back flow from the manifold should the system be inadvertently discharged when one or more cylinders are disconnected for maintenance. The take- out for the valve is 1.375 in (35 mm). Page 7 of 10