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Custom Fire Apparatus, Inc. <br />REAR SUCTION <br />HIGH -FLOW PUMP INTAKE ADAPTER <br />The mid -ship mounted fire pump is to include a rear suction cast iron intake adapter, with stainless steel <br />6" i.d. ASA flanged inlet, configured for use with the optionally specified rear suction butterfly valve and <br />upstream rear suction inlet piping. Intake adapter is to be positioned to allow for the specified rear <br />suction piping to be low profile, overhead the chassis frame rail. <br />REAR SUCTION <br />A rear gated pump suction intake to be furnished, inlet located passenger's side exterior of body, exiting <br />through rear body panel, approximately 20" tailboard. Rear suction shall include: 6" NST long handled <br />suction cap, 6" removable zinc strainer, 6" NST male x 6" stainless steel pipe female chrome plated brass <br />inlet adapter, 6" i.d. schedule-10 STAINLESS STEEL suction intake pipe extending from rear inlet <br />adapter to pump compartment, 6" Victaulic clamp coupler, 6" ASA flanged nipple, 6" Akron butterfly <br />style gate valve with "slow operating" 12-volt electric actuator and model 9323 Navigator Controller, <br />bronze bleeder and drain valves located where necessary, and appropriate 6" ASA flanged fire pump <br />intake fitting. <br />GATED REAR SUCTION INTAKE RELIEF VALVE <br />A Elkhart rear suction intake relief valve shall be furnished installed on the rear suction piping (upstream <br />of the rear suction valve) located inboard the exterior rear body panel. Intake relief valve to be of the <br />pre-set adjustable bypass design, mounted so as to self -drain, and furnished with appropriate discharge <br />piping to dump below the vehicle any excessive rear suction inlet water pressure. <br />3.5" WATEROUS SUCTION VALVE, HIGH -FLOW <br />A 3.5" full -flow Waterous tank -to -pump 1/4-turn valve to be furnished with chrome plated bronze ball, <br />spring loaded seal assembly, and inlet hose connection. The gated suction line/piping from specified tank <br />sump to the tank -to -pump valve shall be furnished with reusable screw -banded flexible "hump hose" <br />connection and 4" i.d. stainless steel piping enclosed within the fire pump compartment. Tank -to -pump <br />suction line design and size shall allow a flow rate of at least 700 GPM. (200 GPM in excess of NFPA <br />minimum requirement). <br />NOTE: Plastic or PVC tubing is not an acceptable alternative to stainless steel piping. <br />TANK -TO -PUMP CHECK VALVE <br />Waterous bronze tank -to -pump suction check valve to be furnished, integral with fire pump main body <br />casting, full -flow design to prevent obstruction of suction waterway (available on CS and CM pumps <br />07/26/22 <br />-76- <br />