Simplex and Duplex One Stage Column Sump Pump - Model 521 and 522 Brochure

AURORA® 520 SerieSSINGLE STAGE SUMP PUMPSWWW.AURORAPUMP.COM2SINGLE STAGE SUMP PUMPSAURORA® 520 SerieSSingle Stage Sump PumpsCapacities to 110 G.P.M.Heads to 40 FeetTemperatures to 180°FIntroduction.Vertical extended shaft single stage pumps are used to transfer liquid from below-ground reservoirs or enclosed tanks. Aurora 520 Series sump pumps are a logical choice for a variety of applications, such as sump drainage in building basements, tunnels, pits, or wherever water gathers and must be emptied into sewers or be elevated above ground. They are popular for handling wash water, boiler pit service, etc. The 2" pump can handle up to 1-1/2" diameter sphere size screened sewage. Aurora Pump understands that operating speeds, ball bearing arrangements, shaft design and construction are all critical design elements in a vertical pumping system. This brochure illustrates how this pump solves these problems and will contribute to the solution of your particular pumping problem.Optional Equipment• All iron construction• Gastight stuffing box• Grease lubricated pump bearing• Stainless steel shaft• Round, square or Simplex shape baseplates• 4" Vent• Various float switch enclosures• Electric controllers• High water alarm• Float guard• Special pump setting increments• Flanged discharge elbow• Strainer optional on 2" pumps3WWW.AURORAPUMP.COMSINGLE STAGE SUMP PUMPSA. Bronze Sleeve Bearing extra length for long life.B. Relief Holes prevent liquid under pressure from rising above normal sump liquid levels.C. Support Pipe constructed of 1-1/2" schedule 40 pipe.D. Line Bearings provided for each 4' of depth. Each bearing is grease lubricated.E. Motor Mounting bracket assures alignment of motor and pump shaft with tongue and groove machining.F. Thrust Ball Bearing regreaseable and protected from contamination.G. External Impeller Adjustment accomplished with an easy-to-reach adjusting collar.H. Elevated Head Bearing provides additional bearing protection from washdown and other contaminates. Integral stuffing box is available with packing and a split gland for gas tight construction.I. Steel Baseplate standard, with optional designs available.J. Elevated Float Switch Assembly standard, with several available enclosures.K. Discharge Pipe securely locked to the baseplate and threaded.L. Positive Alignment Throughout tongue-and-groove design assures true and vibration-free operation.M. Pump Shaft 13/16" diameter shaft minimizes deflection.N. Liquid End semi-open bronze impeller is standard. A large area strainer keeps trash from clogging the impeller on 1" and 1-1/2" pumps.Pump FeaturesABCDE FGHIJ KLMN4SINGLE STAGE SUMP PUMPSDimension DetailsNotes:1. Dimensions and weights are approximate.2. All dimensions are in inches and may vary +/- 1/2".3. Not for construction purposes unless certified.4. Add pump(s), base(s), head and motor weight(s) for unit weight.Pump Size Pump Weight Minimum Baseplate SizeDischarge Suction Case Bore Sphere Size 5'0" Pit DepthAdd for Ea. Add'l.1' PitFType 1 Type 2 Type 4 Type 5H Size J K Size J K Size D J1 1-1/4 6 5/16 190 15 6-1/8 3-5/16244-5/16 3-7/83010-5/16 3-7/8349-5/16 2-13/161-1/2 2 6 5/16 195 15 6-3/8 3-1/2 4-3/4 4-3/8 10-3/4 4-3/8 9-5/8 2-5/82 2-1/2 6 1-1/2 200 15 6-3/8 3-1/2 4-3/4 4-3/8 10-3/4 4-3/8 9-5/8 2-5/8Steel Baseplate Motor – O.D.P.A B Type 1 Type 2 Type 4 Type 5 Frame Horsepower Weight(lbs.) YG Weight G Weight G Weight G Weight 1750 1150– Oval 1/4 20 – – – – – – – – – –11 24 – – 3/8 28 – – – –561/3 – 181013 28 – – 3/8 76 – – – – 1/2 1/3 2016 34 – – – – 3/8 125 1/2 135 3/4 1/2 2619 40 – – – – 3/8 173 1/2 183 143TC 1 3/4 37 9-1/222 46 – – – – 3/8 299 1/2 309 145TC 1-1/2 1 46 10-1/225-1/2 53 – – – – 3/8 397 1/2 504 2 1-1/2G2-1/2"FPUMP SETTING +/- 2"11“Y” APPROX.Motor Assembledby OthersStrainer Optionalon 2" PumpsJK1/2 BB129-13/1616-3/8AJK1/2 BB12x18Manhole JKB 12x18ManholeDBaseplate – Type 1StandardRound or Square CoversBaseplate – Type 4Optional Simplexwith ManholeRound or Square CoversBaseplate – Type 2Optional SimplexRound or Square CoversBaseplate – Type 5Optional Duplex withOvals & Manhole1/2 B5WWW.AURORAPUMP.COMSINGLE STAGE SUMP PUMPSPerformance Data and Special FeaturesDesign DetailsPump Shaft Rotation – From Driver End CWDiameter – Full Length 13/16Bearing Bearing (Ball) – Head 7305WBearing (Sleeve) – Pump 6 Lg.Support Pipe Size 1-1/2Speed – RPM 1750Minimum Horsepower 1/2Temperature – ºF 180Basin Pressure – psi 2Basin Cover Size – without oval or manhole 28"Ovals or Manhole 53"Line Shaft BearingsPit Depths Number of Line Shaft Bearings1'4" to 5'1" 05'2" to 9'0" 19'1" to 10'6" 2Note: Total head calculations must include distance from floor plate to lowest water level. 20 40 60 80 100 120 140CAPACITY – G.P.M.40302010TOTAL DYNAMIC HEAD – FEET1x1-1/4x61x1-1/2x6 2x2-1/2x61 HP1-1/2 HP3/4 HP1/2 HP1/3 HP6SINGLE STAGE SUMP PUMPSPump Details and AssemblyA. Switch B. BalanceC. BellowsD. SupportE. BaseplateF. Rod G. StopH. FloatI. GuideBACDEFGHIFLOAT SWITCH ASSEMBLYELEVATED HEAD DETAILSOptional packed stuffing box illustrated.PUMP DETAILS7WWW.AURORAPUMP.COMSINGLE STAGE SUMP PUMPSEngineering SpecificationsThe contractor shall furnish (and install as shown on the plans) Aurora® Model (521A Simplex) (522A Duplex) centrifugal sump pumps size _____ x _____ of (bronze fitted)(all iron) construction. Each pump shall havea capacity of _____ G.P.M. at _____ ft. total head, with a temperature of _____ºF, _____ specific gravity. The units shall be designed for a sump depth of _____ feet and shall be furnished with the discharge terminating at the baseplate with a male threaded connection.A steel baseplate (round) (square) – (Simplex) (Simplex with manhole) (Duplex with manhole) will be provided.The pump casing and suction cover shall be of cast iron. The casing is to be of the single stage design and cast integrally with thebearing cover.A strainer of sufficient size (optional on 2" pumps) shall be provided. The impeller is of the semiopen type and shall be constructed of bronze. The impeller is to be dynamically balanced and keyed to the pump shaft. The column pipe must be 1-1/2" diameter having machined tongue and grooved joints to ensure shaft alignment. A pump bearing will be located directly above the impeller and shall be of the bronze sleeve type.Line bearings must be provided on pit depths of 5'2" and one additional bearing for each 4' thereafter. Line bearings must be (grease) (oil) (water) lubricated through separate nylon tube lubrication lines terminating at the baseplate.The motor pedestal is to be of cast iron, one piece construction, fitted with a sealed thrust ball bearing located 3" above the baseplate. An optional packed stuffing box complete with a split gland shall be provided for gas-tight construction. The ball bearing collar is to allow external axial adjustment of the shaft and impeller. A grease seal shall be provided to retain grease and to prevent contamination of the ball bearing. A grease fitting will be provided to allow regreasing of the bearing.The pump shall be controlled by an enclosed (heavy-duty) (watertight and explosion resisting) (heavy-duty with built-in overload protection) (explosion-proof) type float operated switch 6" above the baseplate with reinforced plastic float and float rod. A flexible bellows will provide gastight construction.An automatic alternator shall be furnished on duplex pumps to allow the pumps to alternate on each successive cycle of operation. The pumps are to be driven by and flexible coupled to a standard “C” flange _____ HP, _____ volt, _____ cycle, _____ RPM, _____ enclosure, vertical electric motor.HYDRAULIC 19 INSTITUTE 17 ISO 9001 REGISTERED QUALITY SY STEM 800 AIRPORT ROAD, NORTH AURORA, ILLINOIS 60542 WWW.AURORAPUMP.COMBecause we are continuously improving our products and services, Pentair reserves the right to change specifications without prior notice.A-02-1020 01/15/13 © 2013 Pentair Ltd. All Rights Reserved.