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52AI1H5A1

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Goulds 52AI1H5A1 3656 LH Series Centrifugal Pump, Size 2 1/2 x 2 1/2-5, All Iron, Close Coupled, 3 HP, 208-230/460 Volt, 60 hz, Three Phase, EPR Mechanical Seal, TEFC - Totally Enclosed Fan Cooled Motor, 3500 RPM, 4.1875" (4 3/16") Impeller Diameter, 2 1/2" NPT Suction, 2 1/2" NPT Discharge

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Item: 52AI1H5A1

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52AI1H5A1

Adapter Material	Cast Iron
Capacities (GPM)	900 GPM (204 m3/hr) at 3500 RPM
Casing Material	Cast Iron
Discharge NPT (Inches)	2 1/2" NPT
Heads To (Feet)	65 feet THD (19.8 m) at 3500 RPM
HP	3
Hz	60
Impeller Material	Cast Iron
Impeller Size (Inches)	4.1875" (4 3/16")
Material	All Iron
Maximum Operating Temperature	212°F (100°C) with standard seal or 250°F (121°C) with optional seal
Maximum Working Pressure (PSIG)	175 PSIG (12 bars)
Motor Enclosure Type	TEFC - Totally Enclosed Fan Cooled

Phase	3 Ph (Three Phase)
Pump Size	2 1/2 x 2 1/2-5
Quick Specs	3HP 3/60/230-460 TE 4.19"
Rotary	Carbon
Shaft Seal Material	EPR - Ethylene Propylene
Speed (RPM)	3500
Stationary	Silicon Carbide
Suction NPT (Inches)	2-1/2" NPT
Suction Pressure	100 PSIG (9 bars)
UPC	69766678623
Voltage	208/230/460

3656 3756LH Cast Iron Bronze Pump Series Information

Features & Benefits
Goulds 3656 / 3756 LH Pumps are designed for an array or applications and have several features and benefits. • Performance testing of every pump we manufacture assures troublefree operation. • Back pull-out to reducemaintenance downtime. • Standard John CraneType 21 mechanical sealfor both reliability andavailability. • Available in all iron orbronze fitted constructionfor application versatility. • Replaceable wearing components include stainless steel shaft sleeve and casing wear ring to maintain peak efficiency. • Enclosed impeller design, dynamic balancing and renewable wear ring reduce losses affecting performance and pump life. • Suction and discharge connections are NPT threaded except for them 4 x 4-5 and 5 x 5-6 sizes which have ANSI class 125 flat faced flanges. • Casing mounting is standard with a vertical discharge however can be rotated in 90 degree increments for side discharge arrangements.
General Description
3656 LH and 3756 LH pumps from Goulds Water Technology have been designed with technical benefits to meet the needs of both manufacturers and users in a variety of refrigeration and cooling applications as well as irrigation applications.
Motor Information
NEMA standard JM frame for 3656LH or T-frame for 3756LH. Open dripproof, totally enclosed fan cooled and explosion proof enclosures available. Single phase (115/230 V) and Three phase (208 – 230/460 V) versions are available. Horsepowers are ½ at 1750 RPM and ¾ – 5 HP at 3500 RPM.

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Type	Title		Link
	Goulds 3657 / 3757 LH Model Technical Brochure & Performance Curves		View
	Goulds 3657/3757 LH Installation, Operation & Maintenance Instruction Manual		View
	Goulds 3656 / 3756 LH Repair Parts		View

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52AI1H5A1