Pentair Aurora - Horizontal and Vertical Single Stage Split Case - Model 411, 412 and 413 - Brochure

AURORA® 410 SerieSSINGLE STAGE SPLIT CASE PUMPSWWW.AURORAPUMP.COMMOdel 411MOdel 4132SINGle STAGe SPlIT CASe PUMPSVeRTICAlMOdel413 OPTIONAl RIGHT-HANd ROTATIONVeRTICAlMOdel412OPTIONAlleFT-HANd ROTATIONHORIZONTAlMOdel 411SPACe SAVING VeRTICAl SPlIT CASe PUMPS – PUT THe MOTOR ABOVe FlOOd CONdITIONSAURORA® 410 SerieSSingle Stage Split Case PumpsCapacities to 15000 GPM (3407 m3/hr)Heads to 663 Ft. (202 m)Temperatures to 275°F (135°C)IntroductionThe horizontal split case pump has long been used for the handling of liquids where the utmost in reliability and accessibility is paramount. Billions of gallons of liquid have been pumped by split case double suction pumps and billions more will be pumped considering the rapid industrial, agricultural and commercial expansion. The Aurora 410 Series pumps make a significant contribution to the customer requirements for pumps on this type of service. The 410 Series is a modern design based on Aurora’s over 90 years of experience with the design, sales and manufacturing of split case pumps. Look through this brochure and see what real accomplishments can be made when an imaginative approach is taken to the customer’s problem of moving liquids within a piping system.Model 411 is horizontally baseplate mounted with a driver flexibly coupled to the pump. This design is recommended where floor space is readily available and where flooding of the installation is not possible.Model 412 is vertically mounted and uses flexible shafting between the driver and the pump. This model is frequently used on difficult applications where flooding of the installation is a possibility.Model 413 is vertically mounted with an elevated driver coupled directly to the pump through a flexible coupling. Model 413 is very popular for installations where available floor space is limited and where possible flooding is marginal.3WWW.AURORAPUMP.COMSINGle STAGe SPlIT CASe PUMPSPump FeaturesDISCHARGESUCTIONSTANDARDRIGHT HAND ROTATIONDISCHARGEOPTIONAL DUAL DRIVERIGHT HAND ROTATIONSUCTIONDISCHARGEOPTIONAL LEFTHAND ROTATIONSUCTIONDISCHARGESUCTIONSTANDARDRIGHT HAND ROTATIONDISCHARGEOPTIONAL DUAL DRIVERIGHT HAND ROTATIONSUCTIONDISCHARGEOPTIONAL LEFTHAND ROTATIONSUCTIONDISCHARGESUCTIONSTANDARDRIGHT HAND ROTATIONDISCHARGEOPTIONAL DUAL DRIVERIGHT HAND ROTATIONSUCTIONDISCHARGEOPTIONAL LEFTHAND ROTATIONSUCTIONStandard Features• Bronze fitted pump construction• Bronze shaft sleeves• Dynamically balanced impellers• Bronze case wearing rings• Twin volute on 10" and larger pumps• Stainless steel impeller key• Regreaseable ball bearings• Single row ball bearing (inboard)• Double row ball bearing (outboard)• Mechanical seals...single unbalanced (Models 412 and 413)• Graphite and TFE lubricated acrylic packing• Internal bypass between casing and stuffing box• 125# ASA flanges• 250 psi case working pressure• Carbon steel shaft• Stuffing box bushings• Lifting lugs• Hydrostatic test• Cast integral bearing arms• Water slingers and grease seals• External bypass between casing and stuffing box (Models 412 and 413)• Coupling guard (Model 411)Optional Features• All iron, all bronze or special alloy pump construction• Hardened 440C stainless steel shaft sleeves (packing only)• 316 stainless steel shaft sleeves (mechanical seal)• Impeller wearing rings• Oil lubricated ball bearings (Model 411 horizontal pump)• Mechanical seals – single unbalanced (Model 411) – single balanced (all models)• Stainless steel or Monel® shaft• External bypass between casing and stuffing box (Model 411)• Steel drip rim, formed steel or fabricated steel bases• Double extended shaft (Model 411)• Right- or left-hand rotation• Certified performance test• Packing with lantern ring (Model 411)• 250# ASA suction and discharge flanges• Bottom suction or chairmounted pumps• Water cooled cartridge caps4SINGle STAGe SPlIT CASe PUMPSHorizontal Pump FeaturesA. Split Case Design simplifies disassembly. The suction and discharge piping and alignment is not disturbed. Simply remove the upper casing for service or inspection. Cast lifting lugs are provided. Computer-machined major components with 360 degree registered fits assure concentricity of all parts. Twin volute design balances out radial hydraulic thrust loads on larger split case pumps (see Range Charts).B. Dynamically Balanced Impeller is keyed to the shaft and secured by adjustable shaft sleeves. Double suction design balances out hydraulic thrust loads. Vacuum cast process and proven design provides high efficiency and performance.C. Bronze Shaft Sleeve prevents shaft wear, is slip fit over the shaft, keylocked and extends the entire length of each stuffing box. Shaft sleeves and impeller are O-ring sealed to eliminate corrosion of the shaft by the pumped liquid. This eliminates the need for high cost, special stainless steel or Monel® shafts.d. Interchangeable Stuffing Box for mechanical seals or packing. Packing is standard on horizontal pumps. Optional lantern rings have internal water seal passages between the casing and stuffing box and cannot be damaged. Mechanical seals have carbon against ceramic face. Long life is assured with 303 stainless steel metal parts and Buna-N elastomers. Several optional mechanical seals are available.e. Grease Lubrication purges old grease from bearing. Oil lubrication is optional on horizontal pumps. Lube fittings are conveniently located for quick access and provide positive bearing lubrication. Oil seals and nonsparking neoprene rotating slingers protect both bearings during pump operation and washdowns.F. Bearings selected for 50,000 hour minimum life at maximum load. Average bearing life 5 x minimum. Double row thrust ball bearing is standard on all models. Short bearing span holds shaft deflection to .002" at face of stuffing box at maximum load. Integral bearing arms eliminate bearing misalignment and simplify service.G. Left-Hand Rotation can be readily provided with standard parts. Tandem drive pumps require only a different shaft.H. Certified Performance with positive suction pressure or with a suction lift is available on each pump for customer approval. Pumps are all hydrostatically tested.I. Case Wearing Rings and throttle bushings prevent wear on the pump casing and are easily and inexpensively replaced.AB C deFGHI5WWW.AURORAPUMP.COMSINGle STAGe SPlIT CASe PUMPSVertical Pump FeaturesKey FeaturesA. Coupling Alignment with true alignment is vital to long life and proper performance. To maintain proper coupling alignment, the mounting bracket is rabbet fitted to the motor.B. Mechanical Seals Standard construction includes carbon against ceramic face for optimum hot water performance. Long life is also assured with 303 stainless steel metal parts and Buna-N elastomers.C. Bearing Protection Grease seals and water slingers are provided to protect the bearings from contamination. This important feature is also standard on horizontal pumps.d. Cast Iron Drip Rim Base Accurate positioning of the pump is assured by the mounting base. A drip rim is incorporated in the base design to control condensation and leakage.eXTeRNAl UPPeR SeAl FlUSHABCdBenefitsGo vertical and put two pumps where only one horizontal would fit.Aurora’s® space saving vertical split case pumps have long been recognized for their reliability. This reputation in the field of vertical installations has been re-emphasized since the introduction of the Model 413 as pumps of unmatched quality.Vertical pumps provide distinct advantages over horizontal pump construction.• Less floor space required.• Inline piping arrangement allows piping in any direction.• Elevated motor protects against potential flooding if the pump station is in a low area. Additional features described for the horizontal pumps are also found in the vertical pumps. There are several features unique only to Model 413. MOdel 4136SINGle STAGe SPlIT CASe PUMPSRange Charts50454035302520151050HEAD (m)FLOW (m3/hr)1 10 100 1000 1000012x14x15B12x14x18A14x16x1810x12x18D10x12x188x10x2110x12x15B8x10x17B10x12x12B6x8x18A6x8x206x8x18B8x10x15B8x10x125x6x174x6x18B8x8x11B5x6x155x6x11A4x5x154x5x11A4x5x11D12345676x8x116x8x158x10x15A8x10x12A6x8x18C10x12x15C8x10x21A2.5x3x123x4x142x2.5x121234657160140120100806040205040302010HEAD (FEET)(METERS)U.S. GPMUSM3/HR100 200 300 400 500 600 700 800 900 100010 20 30 40 50 6040 80 120 160 200 24040%50% 60% 65%71%71%70%65%60%30HP25HP20HP15HP6NPSH5NPSH4NPSH7NPSH8NPSH10NPSH18.25"17"15.5"M A X . S P H E R E SIM P. PAT T. N O .1 8 0 A 2 1 6 L O W E RC A S E PAT T. N O ..5 6 3 IN4 4 4 A 1 4 21 8 0 A 2 1 5 U P P E R (A L L )M IN . IM P. D IA . 1 5 .5 IN1 8 0 A 2 5 9 L O W E R2PC-117376(411)(412 & 413)Individual performance curves should be checked for final selection. For selections not shown on this chart, please refer to the factory.Power Frame No. 1 Power Frame No. 4Power Frame No. 2 Power Frame No. 4APower Frame No. 3 Power Frame No. 5A1000 RPM9008007006005004003002001009080706050TOTAL DYNAMIC HEAD – FEETCAPACITY – GALLONS PER MINUTE30 40 60 90 100 200 300 400 600 800 1000 2000 3000 5000 90006x8x14HH6x8x11HH5x6x11C4x5x11D4x5x11C2.5x3x10B3x4x10B3x4x10C4x5x10B2x2.5x92x2.5x10Individual performance curves should be checked for final selection. For selections not shown on this chart, please refer to the factory.Power Frame No. 1 Power Frame No. 5Power Frame No. 2 Power Frame No. 6BPower Frame No. 3 Power Frame No. 7Power Frame No. 4 Power Frame No. 7APerformance CurvesThe individual curve for the size pump selected is found in the catalog. These performance curves give complete operating characteristics, efficiency, horsepower and N.P.S.H. required. Horsepower lines on these curves are based on specific gravity of 1.0. To obtain the horsepower for a liquid of a different specific gravity, multiply the horsepower obtained from the curves by the specific gravity of that liquid. The performance curve illustrated to the left is typical of the individual curves readily available for each pump size.Single Volute 3500 RPM7WWW.AURORAPUMP.COMSINGle STAGe SPlIT CASe PUMPSRange Charts9008007006005004003002001008070605040302010TOTAL DYNAMIC HEAD – FEETCAPACITY – GALLONS PER MINUTE20 30 40 50 60 80 100 200 300 400 600 800 1000 2000 3000 4000 6000 8000 1000012x14x18A12x14x15B10x12x18D8x10x2110x12x1810x12x15C10x12x12B8x10x15A8x10x12A8x10x15B8x10x12123456789103x4x10C4x5x11C6x8x156x8x18B6x8x18A6x8x18C6x8x208x10x17B8x10x21A10x12x15B5x6x11C6x8x115x6x11A 8x8x11B5x6x154x6x18B 5x6x174x5x11D4x5x11A4x5x153x4x142.5x3x10B2.5x3x123x4x10B 4x5x10123109865472x2.5x92x2.5x102x2.5x121750 RPM4003002001009080706050403020TOTAL DYNAMIC HEAD – FEETCAPACITY – GALLONS PER MINUTE20 30 40 50 60 80 100 200 300 400 500 600 800 1000 2000 3000 4000 5000 7000 10000 2000012x14x15B12x14x18A14x16x1810x12x18D8x10x2110x12x1810x12x15C10x12x12B6x8x18B6x8x15 8x10x12A8x10x128x10x15B8x10x17B312544x6x18B5x6x175x6x155x6x11A 8x8x11B6x8x114x5x154x5x11A2.5x3x123x4x142x2.5x121234566x8x18A6x8x18C6x8x208x10x15A8x10x21A10x12x15B6Individual performance curves should be checked for final selection. For selections not shown on this chart, please refer to the factory.Power Frame No. 1 Power Frame No. 5Power Frame No. 2 Power Frame No. 6BPower Frame No. 3 Power Frame No. 7Power Frame No. 4 Power Frame No. 7AIndividual performance curves should be checked for final selection. For selections not shown on this chart, please refer to the factory.Power Frame No. 1 Power Frame No. 5Power Frame No. 2 Power Frame No. 6BPower Frame No. 3 Power Frame No. 7Power Frame No. 4 Power Frame No. 7A1150 RPM8SINGle STAGe SPlIT CASe PUMPSRange Charts3002001005040302010HEAD (m)FLOW (m3/hr)10 100 1000 6x8x14HH2.5x3x10B2x2.5x92x2.5x10 3x4x10B4x5x10B3x4x10C4x5x11C4x5x11D5x6x11C 6x8x11HHIndividual performance curves should be checked for final selection. For selections not shown on this chart, please refer to the factory.Power Frame No. 1 Power Frame No. 4Power Frame No. 2 Power Frame No. 4APower Frame No. 3 Power Frame No. 5A3000 RPM120100806040200HEAD (m)FLOW (m3/hr)1 10 100 1000 1000010x12x188x10x2112x14x15B12x14x18A10x12x12B10x12x15B10x12x15C6x8x18A6x8x206x8x18B88x10x125x6x174x6x18B8x10x17B8x10x15B123456789101112134x5x103x4x10C5x6x11C5x6x11A6x8x116x8x158x10x15A6x8x18C10x12x18D8x10x12A8x10x21A8x8x11B2.5x3x10B5x6x154x5x154x5x11A 45124x5x11D3x4x143x4x10B2.5x3x12132x2.5x122x2.5x92x2.5x10 132 6710911Individual performance curves should be checked for final selection. For selections not shown on this chart, please refer to the factory.Power Frame No. 1 Power Frame No. 5Power Frame No. 2 Power Frame No. 6BPower Frame No. 3 Power Frame No. 7Power Frame No. 4 Power Frame No. 7A1500 RPM9WWW.AURORAPUMP.COMSINGle STAGe SPlIT CASe PUMPSPump DimensionsMotorFrameModel 413143HP145HP182 HP184 HP213 HP215 HP254 HP 256 HP284HPH286HPH324HP326HP364HP365HP404HP405HP444HP445HPModel 411143T145T182T184T213T215T254 T256T284 TS284T286 TS286T324 TS324T326 TS326T364 TS364T365TS365T404 TS404T405 TS405T444 TS444T445 TS445THorse-power3500 RPM 1-1/2 2–3 5 7-1/2 10 15 20 25 30 – 40 – 50 – 60 – 75 – 100 – 125 – 150 – 200† – – –1750 RPM 11-1/2 –2 3 5 7-1/2 10 15 20 – 25 – 30 – 40 – 50 60 – 75 – 100 – 125 – 150 – 200† –1150 RPM – 1 1-1/2 2 3 5 4-1/2 10 – 15 – 20 – 25 – 30 – 40 – 50 – 60 – 75 – 100 – 125MotorWgt.Model 411 40 45 72 80 130 145 220 240 330 330 370 370 475 475 525 525 630 630 690 690 830 830 915 915 1095 1095 1270 1270Model 413 43 48 84 102 132 156 300 300 420 420 420 420 570 570 570 570 950 950 950 950 1230 1230 1230 1230 1680 1680 1680 1680C 12 13 13 14 16 18 21 23 22 24 24 25 25 26 26 28 27 29 28 30 30 33 31 34 34 38 36 40D (See Note***) 3-1/2 3-1/2 4-1/2 4-1/2 5-1/4 5-1/4 6-1/4 6-1/4 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11P Approx. 8 8 10 10 11 11 13 13 16 16 16 16 18 18 18 18 20 20 20 20 22 22 22 22 26 26 26 26AG Approx. 11 12 14 15 16 17 20 21 22 23 23 23 25 25 26 26 25 25 25 25 28 28 28 28 32 32 32 32Model 411 Base NumberPwr. Series Model 4111 3 3 3 3 3 3 8 8 8• – 8• – 11•2 3 3• 3• 3• 5 5 8 8 9 9 9 9 11• 12 11• 12 12 – 123 5• 8 8 8 9 11 11 11 11 12 12 12 12 12 – 12 – 15• – 15•4 6• 6• 9 9• – 11 – 11 11 11 12 12 12• 12• 12• 12 16• – 16• – 16• – 16•5 11 11 – 12 – 12 – 12• – 12 12 12 12 13 16 16• 16• 16• 16• 16• 16• –6B 13 – 13• – 13• – 13• 13• 13 17 17• 17 17 17 17 17 187 17• – 17• 17• 18 18 18•Base 3 5 6 8 9 11 12 13 15 16 17 18 Flanges – ASA Std. Furnished As:BaseWgt. 49 59 68 96 109 164 192 235 291 344 399 441 250# with125# drilling StandardHA 15 17-1/4 17-1/4 20-1/2 20-1/2 26-3/4 26-3/4 26-3/4 30-3/4 30-3/4 30-3/4 30-3/4HB 33-1/2 36-1/2 42-1/2 42-1/2 48-1/2 46-1/2 54-1/2 64-1/2 54-1/2 64-1/2 74-1/2 82-1/2 250# with250# drilling OptionalHN 3 3 3 3 3 4 4 4 4-1/2 4-1/2 4-1/2 4-1/2DHYCP APPROX.C APPROX.HNHBMOdel 411Notes – Apply to all models: • May not be used for all pump sizes in this power series. Consult individual dimension pages for final selection. † For motor and baseplate dimensions over 200 HP, refer to the factory. 1. Dimensions and weights are approximate. 2. Complete dimensions are available. 3. Not for construction purposes unless certified for approval. 4. Frame sizes shown are for open drip-proof motors only. 5. Add pump, base and motor weight for unit total weight. 6. Conduit box is shown in approximate position. Dimensions are not specified as they vary with each motor manufacturer. 7. Aurora® reserves the right to make revisions to its products and their specifications and to this brochure and related information without notice. 8. 10x12x18 and 12x14x15 pump sizes are also available as bottom suction horizontal Model 411B pumps. See individual dimension pages for complete dimensions.10SINGle STAGe SPlIT CASe PUMPSPump DimensionsPump SizeDisch.SuctionBorePwr. SeriesPump Wgt.(lbs.)A D** S X CP HY VE YY411 4132x2.5x9 2 2-1/2 91145 215 18 7 3-1/2 8-1/2 21 4-1/2 11-1/8 92x2.5x10 2 2-1/2 10 145 215 18 7 3-1/2 8-1/2 21 4-1/2 11-1/8 92x2.5x12 2 2-1/2 12 175 260 18 8 4 10 21 4-1/2 11-1/8 10-3/42.5x3x10 2-1/2 3 102215 300 18 8 4 9-3/4 24 5-1/2 13 102.5x3x12 2-1/2 3 12 255 360 18 9 4-1/2 11 24 5-1/2 13 11-1/23x4x10 3 4 10 260 365 18 9 4-1/2 10 24 5-1/2 13 113x4x14 3 4 14 310 435 18 10 5 12 24 5-1/2 13 134x5x10 4 5 10 330 465 18 9 4-5/8 10 24 5-1/2 13 11-1/44x5x11 4 5 11 3 390 435 22 10 5 11-1/4 26 6-1/2 14 12-3/44x5x15 4 5 15 415 490 22 11 5-1/2 13 26 6-1/2 14 144x6x18 4 6 184560 780 22 12-1/2 6-1/4 14 29 6-1/2 15 165x6x11 5 6 11 455 580 22 11 5-1/2 11-1/4 29 6-1/2 15 13-1/45x6x15 5 6 15 530 735 22 12-1/2 6-1/4 13-1/4 29 6-1/2 15 155x6x17 5 6 17 635 855 22 12-1/2 6-1/4 14 29 6-1/2 15 156x8x11 6 8 11 520 650 22 12-1/2 6-1/4 11-3/4 29 6-1/2 15 14-1/28x8x11 8 8 11 605 835 22 12-1/2 6-1/4 12 29 6-1/2 15 14-1/26x8x11HH 6 8 11HH 4A 990 1095 22 13-3/16 8-5/8 10 32-3/4 8-1/2 17-1/8 156x8x14HH 6 8 14HH 5A 1190 1410 30 13-3/16 7-1/2 15 36-3/4 8-1/2 19-7/16 176x8x15 6 8 155585 735 30 13-1/2 6-3/4 14-1/4 32 7-1/2 17 16-3/46x8x18 6 8 18 800 1020 30 14-3/4 8 16 32 7-1/2 17 186x8x20 6 8 20 875 1095 30 14-3/4 8 15-3/4 32 7-1/2 17 188x10x12 8 10 12 740 925 30 14-3/4 8* 17 32 7-1/2 17 17-3/48x10x15 8 10 15 835 1040 30 14-3/4 8* 17 32 7-1/2 17 17-3/48x10x17 8 10 17 865 1085 30 14-3/4 8 17 32 7-1/2 17 17-3/48x10x21 8 10 216B955 †† †† 18-1/2 9-1/2 18 38 11-1/2 – 2110x12x12 10 12 12 1325 1575 40 23 12 16 38 11-1/2 – 1910x12x15 10 12 15 1390 †† †† 25 13-1/2 17 38 11-1/2 – 2010x12x18 10 12 18 1725 †† †† 25 13-1/2 18 38 11-1/2 – 2210x12x18D 10 12 18D 7A 1920 †† †† 25 12-1/4 20 42-15/16 11-1/2 – 2412x14x15 12 14 1572000 †† †† 24 15 17 44 11-1/2 – 2212x14x18 12 14 18 2100 †† †† 24 15 18 44 – – 2314x16x18 14 16 18 2850 †† †† 29-1/4 16 22 44 – – 27P DIA.APPROX.AGAPPROX.DHCPVEHASDISCHARGESUCTIONYY XSYYA DIA.BASEXPwr. Series 1 2 3 4 5DHUp to 256 hp 26 30 33 35 –284 hph and up 28 32 35 37 41CP 23 27 29 31 35Models 412 and 413Notes – Apply to all models: * Add 1" for true discharge centerline. ** Always use largest of 2 “D” dimensions. †† These pump sizes are available in a vertical chair mount configuration in Models 412 and 413. See individual dimensions pages for complete dimensions and weights.MOdelS 412 ANd 413P DIA.APPROX.AGAPPROX.DHCPVEHASDISCHARGESUCTIONYY XSYYA DIA.BASEXP DIA.APPROX.AGAPPROX.DHCPVEHASDISCHARGESUCTIONYY XSYYA DIA.BASEXMOdel 41111WWW.AURORAPUMP.COMSINGle STAGe SPlIT CASe PUMPSEngineering SpecificationsModels 411, 412 and 413Split Case Base MountedFurnish and install as shown on the plans ____ Right-hand (Left-hand) Aurora® Model (Horizontal – 411) (Vertical – 412 Open Shaft) (Vertical – 413 Flexible Coupled) type Split Case, Double Suction, Single Stage centrifugal pump, size ____x____x____ of bronze fitted (all bronze) (all iron) (stainless steel) construction. The pump shall be capable of delivering at design conditions a capacity of ____ GPM when operating against a Total Dynamic Head of ____ feet, with a temperature of ____ °F, specific gravity ____. Pump shall have minimum guaranteed efficiency at design capacity of ____%. Pump must also be capable of delivering a maximum of ____ GPM when operating against a head of ____ feet, and at this condition shall have a minimum efficiency of ____%. Minimum shut-off head acceptable will be ____ feet. Pump shall operate at a maximum synchronous speed of ____ RPM.A unit operating at a lesser rotative speed will be considered, but in no event will a pump operating at more than the maximum speed specified be acceptable. The pump casing halves shall be of the inline piping design and will be constructed of Class 30 cast iron having a minimum tensile strength of 30,000 psi and shall be of sufficient thickness to withstand stresses and strains at full operating pressures.Casings shall be subject to a hydrostatic pressure test at 150% of the specified duty point. Bearing housing supports, suction and discharge flanges shall be integrally cast with the lower half of the casing. Removal of the upper half of the casing must allow the rotating element to be removed without disconnecting the suction and discharge flanges. The upper casing is to be dowel aligned to the lower casing.Pump sizes 10" and larger are to be of the twin volute design. Drain openings must be provided in the bearing arms for removal of lubricating liquid. Impeller shall be of the enclosed double suction type and shall be vacuum cast bronze (____). Impeller shall be dynamically balanced and securely fastened to the shaft by key and screw locked shaft sleeves. The vanes shall be designed to reduce noise. The pump shaft shall be made of high grade SAE 1045 steel or equal, accurately machined to give a true running rotating element. The minimum dia. acceptable will be ____". The shaft shall be protected from wear by bronze (____) sleeves which are key locked and threaded so that the sleeves tighten with the rotation of the shaft. Buna O-rings must be provided between the impeller hub and the shaft sleeves to prevent pumped liquid from corroding the shaft.Pump shall be equipped with easily renewable bronze (____) casing rings (impeller wearing rings) so designed that hydraulic pressure will seat them against a shoulder in the pump case around the full periphery of the wearing ring. The wear rings will be locked in place by the doweling to prevent rotation. The rotating element shall be mounted in heavy duty grease lubricated ball bearings and shall be equipped with water strainers on side next to pump glands.Bearing housings shall be so designed to flush lubricant through and provide continuous cleaning of bearing surfaces and maximum protection against overheating. The pump shall be supplied with a single row inboard bearing primarily for radial loads and double row outboard bearing primarily for thrust loads. Both bearings shall be regreaseable lubrication ball type, designed for 250,000 hours average life. Each bearing shall be mounted in a machined housing that is moisture- and dust-proof. The housing shall have registered fits to assure alignment, pinned to prevent rotation and bolted to the bearing arms. Each housing shall be supplied with a grease fitting and a plugged relief port.Engineering SpecificationsModel 411Stuffing boxes shall be placed on both sizes of the pump centerline to seal the pump shaft. All packed pumps having a suction lift shall be provided with lantern rings connected to the pressure side of the pump by cored passages in the parting flange of the pump. The stuffing boxes shall be equipped with heavy, cast, split glands with extra length, for easy removal for packing inspection and maintenance. Pump and motor shall be mounted on a common heavy baseplate of (steel with drip rim) (formed steel) (structural steel). Pump and motor must be checked for alignment after the pump base has been installed and grouted in place, in accordance with the standards of the Hydraulic Institute. There shall be no strain transmitted to the pumps.Models 412 and 413Mechanical seal boxes shall be placed on both sides of the pump centerline to seal the pump shaft. Each pump is to be furnished with mechanical seals with all metal parts to be 303 stainless steel with Buna-N elastomers, ceramic seat, and carbon washer. A bypass line must be provided for the upper seal between the seal faces and the discharge flange to assure adequate venting of the seal chamber and to provide lubrication. All pumps shall be provided with cored passages in the parting flange of the pump to provide additional circulation to both seals. The mechanical seal boxes shall be equipped with heavy, cast, one piece O-ring sealed glands. The pump shall be supported by a cast iron drip rim base.Model 412Vertical open shaft pumps are to be driven through flexible shafting with dia. tubing and intermediate bearings. Shafting must be of sufficient size to transmit required HP and must be provided with a slip spline which will permit removal of the pump rotating assembly without removing any section of intermediate shafting, bearings, suction or discharge piping.Model 413Vertical flexible coupled pumps shall be furnished with a cast iron motor bracket which is to be bolted to the vertical casing. The motor bracket must be machined with a register fit to ensure proper alignment of motor and pump shaft.Models 411 and 413The pumps shall be flexible coupled to a standard (horizontal) (vertical) NEMA, ____ HP, ____ phase, ____ Hertz, ____ volts, ____ RPM (drip-proof) (tot. encl.) (hazardous location) motor.800 AIRPORT ROAD, NORTH AURORA, ILLINOIS 60542 WWW.AURORAPUMP.COMMonel is a registered trademark of Special Metals Corporation.Aurora is a registered trademark of Pentair Ltd. Because we are continuously improving our products and services, Pentair reserves the right to change specifications without prior notice.A-02-1017 1/2/13 © 2013 Pentair Ltd. All Rights Reserved.