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Goulds’ 3656 M Series close-coupled, end-suction, centrifugal pumps have been designed for a variety of water supply, recirculation, and cooling applications. This series features a cast iron or bronze fitted, enclosed impeller available in multiple diameters. These pumps are built with an ANSI flanged or NPT suction and discharge that comes in multiple sizes. The motors come in open drip-proof or totally enclosed fan cooled, single or three phase, and in 1750 or 3500 RPM versions. These pumps are available in a wide range of power outputs. The selected options determine the maximum head and flow. Features Back pull-out to reduce maintenance down time Standard Type 21 mechanical seal for both reliability and availability Carbon/ceramic/BUNA standard, with other faces and elastomers available Available in packed stuffing box design with Teflon impregnated packing, split Teflon lantern ring, tapped flush connection and 2 piece investment cast interlocking gland, all standard Replaceable wearing components include stainless steel shaft sleeve and casing and hub wear rings to maintain peak efficiency Enclosed impeller design, dynamic balancing and renewable wear rings reduce losses affecting performance and pump life Applications Booster service Spraying systems Irrigation Water circulation Liquid transfer General purpose pumping GOULDS 3656 M SERIES CENTRIFUGAL PUMPS Model Comparison Chart Model Discharge HP Voltage Phase RPM Impeller Material 16AI2EBJ0 3" ANSI Class 125 Flange 1 230/460 3 1750 Cast Iron 16AI2E9J0 3" ANSI class 125 flange 1 230/460 3 1750 Cast Iron 16BF2EBJ0 3" ANSI class 125 flange 1 230/460 3 1750 Bronze 16AI2FBH0 3" ANSI class 125 flange 1-1/2 230/460 3 1750 Cast Iron 7AI2GBF0 2-1/2" NPT 2 230/460 3 1750 Cast Iron 16AI2F9H0 3" ANSI class 125 flange 1-1/2 230/460 3 1750 Cast Iron 7AI2G9F0 2-1/2" NPT 2 230/460 3 1750 Cast Iron 16BF2E9J0 3" ANSI class 125 flange 1 230/460 3 1750 Bronze 16AI1LBH0 3" ANSI class 125 flange 10 230/460 3 3500 Cast Iron 16BF2FBH0 3" ANSI class 125 flange 1-1/2 230/460 3 1750 Bronze For a complete listing of models in the Goulds 3656 M series, please visit our 3656 M series product pages. PERFORMANCE CURVES DIMENSIONS MATERIALS OF CONSTRUCTION ENGINEERING DATA REPAIR PARTS BROCHURE Goulds 3656 M Series Centrifugal Pump Brochure INSTALLATION MANUAL Goulds 3656 M Series Centrifugal Pump Installation Manual POWER FRAME REPAIR PARTS Goulds 3656 M Series Centrifugal Pump Power Frame Repair Parts REPAIR PARTS Goulds 3656 M Series Centrifugal Pump Repair Parts Pump Products application engineers are standing by to help you find the right pump, as well as to provide price quotes, stocking availability and shipping information. Call our toll free number 1-800-429-0800 to speak to an expert today.