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The Goulds 3656 L Series of end-suction, Centrifugal Pumps have been designed for a variety of water supply, recirculation, and cooling applications. This series is available in all iron or bronze fitted construction for application versatility. The Goulds 3656 L Series offers a close coupled design for space saving and simplified maintenance. The 3656 Series is also designed for back pull-out to reduce maintenance down time. Replaceable wearing components include stainless steel shaft sleeves, casing, and hub wear rings to maintain peak efficiency. This series features a bronze fitted, enclosed impeller available in multiple diameters. Dynamic balancing and renewable wear rings reduce losses affecting performance and pump life. These Centrifugal Pumps are built with a 125 class ANSI flanged suction and discharge that come in multiple sizes. This allows for piping connection versatility. NPT threaded connections are supplied on 1½ x 2 – 10 and 2½ x 3 – 8 models. Standard type 21 mechanical seals provide for both reliability and availability. Carbon/ceramic/BUNA standard, with other faces and elastomers are available. The motors come in open drip-proof or totally enclosed fan cooled, and in 1180 or 1750 RPM versions. Optional explosion proof and high efficiency motors are available. These pumps are available in a wide range of power outputs. The selected options determine the maximum head and flow. GOULDS 3656 L SERIES Model Comparison Chart Model Discharge (ANSI class 125 flange) Suction (ANSI class 125 flange) HP Voltage Phase RPM 18BF3KBK0 6" 8" 7-1/2 230/460 3 1180 18BF3LBH0 6" 8" 10 230/460 3 1180 18BF3K9K0 6" 8" 7-1/2 230/460 3 1180 18BF2QBK0 6" 8" 30 230/460 3 1750 18BF3MBP0 6" 8" 15 230/460 3 1180 18BF2QBJ0 6" 8" 30 230/460 3 1750 18BF3PBL0 6" 8" 25 230/460 3 1180 18BF2Q9J0 6" 8" 30 230/460 3 1750 18BF3NBM0 6" 8" 20 230/460 3 1180 18BF3L9H0 6" 8" 10 230/460 3 1180 18BF2T2D0 6" 8" 60 230/460 3 1750 18BF2RBH0 6" 8" 40 230/460 3 1750 18BF2RBG0 6" 8" 40 230/460 3 1750 18BF2Q9K0 6" 8" 30 230/460 3 1750 18BF2SBE0 6" 8" 50 230/460 3 1750 18BF2SBF0 6" 8" 50 230/460 3 1750 18BF3N9M0 6" 8" 20 230/460 3 1180 18BF3M9P0 6" 8" 15 230/460 3 1180 18BF2R9G0 6" 8" 40 230/460 3 1750 18BF2R9H0 6" 8" 40 230/460 3 1750 19BF3MBR0 8" 10" 15 230/460 3 1180 18BF2TBC0 6" 8" 60 230/460 3 1750 18BF3P9L0 6" 8" 25 230/460 3 1180 18BF2S9E0 6" 8" 50 230/460 3 1750 19BF3NBR0 8" 10" 20 230/460 3 1180 18BF2S9F0 6" 8" 50 230/460 3 1750 19BF3PBQ0 8" 10" 25 230/460 3 1180 19BF3PBP0 8" 10" 25 230/460 3 1180 19BF2TBH0 8" 10" 60 230/460 3 1750 19BF3QBM0 8" 10" 30 230/460 3 1180 19BF3QBN0 8" 10" 30 230/460 3 1180 19BF3M9R0 8" 10" 15 230/460 3 1180 20BF2TBE0 4" 6" 60 230/460 3 1750 20BF2TBD0 4" 6" 60 230/460 3 1750 19BF3RBJ0 8" 10" 40 230/460 3 1180 19BF3RBL0 8" 10" 40 230/460 3 1180 19BF3RBK0 8" 10" 40 230/460 3 1180 18BF2UBA0 6" 8" 75 230/460 3 1750 18BF2UBB0 6" 8" 75 230/460 3 1750 19BF3N9R0 8" 10" 20 230/460 3 1180 19BF3P9P0 8" 10" 25 230/460 3 1180 19BF3P9Q0 8" 10" 25 230/460 3 1180 19BF3Q9M0 8" 10" 30 230/460 3 1180 19BF3Q9N0 8" 10" 30 230/460 3 1180 20BF2UBB0 4" 6" 75 230/460 3 1750 20BF2UBC0 4" 6" 75 230/460 3 1750 19BF2UBF0 8" 10" 75 230/460 3 1750 19BF2UBG0 8" 10" 75 230/460 3 1750 18BF2T9C0 6" 8" 60 230/460 3 1750 18BF2T9D0 6" 8" 60 230/460 3 1750 20BF2T9D0 4" 6" 60 230/460 3 1750 19BF2T9H0 8" 10" 60 230/460 3 1750 19BF2WBB0 8" 10" 125 230/460 3 1750 20BF2T9E0 4" 6" 60 230/460 3 1750 20BF2VBA0 4" 6" 100 230/460 3 1750 19BF2VBE0 8" 10" 100 230/460 3 1750 19BF2VBD0 8" 10" 100 230/460 3 1750 19BF2WBC0 8" 10" 125 230/460 3 1750 20BF2U9C0 4" 6" 75 230/460 3 1750 19BF3R9J0 8" 10" 40 230/460 3 1180 19BF3R9K0 8" 10" 40 230/460 3 1180 19BF3R9L0 8" 10" 40 230/460 3 1180 18BF2U9A0 6" 8" 75 230/460 3 1750 18BF2U9B0 6" 8" 75 230/460 3 1750 20BF2U9B0 4" 6" 75 230/460 3 1750 19BF2U9F0 8" 10" 75 230/460 3 1750 19BF2U9G0 8" 10" 75 230/460 3 1750 19BF2XBA0 8" 10" 150 230/460 3 1750 19BF2V9E0 8" 10" 100 230/460 3 1750 19BF2V9D0 8" 10" 100 230/460 3 1750 20BF2V9A0 4" 6" 100 230/460 3 1750 19BF2W9B0 8" 10" 125 230/460 3 1750 19BF2W9C0 8" 10" 125 230/460 3 1750 19BF2X9A0 8" 10" 150 230/460 3 1750 PERFORMANCE CURVES DIMENSIONS AND WEIGHTS MATERIALS OF CONSTRUCTION REPAIR PARTS BROCHURE Gouls 3656 L Series Centrifugal Pump Brochure INSTALLATION MANUAL Gouls 3656 L Series Centrifugal Pump Installation Manual POWER FRAME REPAIR PARTS Gouls 3656 L Series Centrifugal Pump Power Frame Repair Parts REPAIR PARTS Gouls 3656 L Series Centrifugal Pump Repair Parts Pump Products applications engineers are standing by to help you find the right pump, as well as to provide price quotes, availability and shipping information. Call our toll free number 1-800-429-0800.