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A-03-327 (09/27/19)
pentair.com
Part # A-03-327 (09/27/19) ©2019 Pentair. All Rights Reserved.
INSTALLATION AND
OPERATION MANUAL
END SUCTION PUMPS
3801 3804
AURORA
*
Model 3801
Model 3804
Страница 1: ...1 A 03 327 09 27 19 pentair com Part A 03 327 09 27 19 2019 Pentair All Rights Reserved INSTALLATION AND OPERATION MANUAL END SUCTION PUMPS 3801 3804 AURORA Model 3801 Model 3804 ...
Страница 2: ... Information 3 Transport and Storage 4 Product Description 5 Pump Installation 6 12 Pump Operation 13 15 Pump Maintenance and Service 16 20 Troubleshooting Guide 21 22 Assembly Exploded View 23 24 Part List 25 Standard Limited Warranty 26 ...
Страница 3: ...working on equipment that may turn on Guards must not be removed while the pump is operational Always follow lock out tag out procedures when working on equipment that may turn on Isolate the pump from any fluid in the system and then drain any remaining fluid from the pump casing before proceeding with dismantling the pump The appropriate safety precautions should be taken where the pumped liquid...
Страница 4: ... large heavy rotating components the manufacturer shall consider and adapt a means to restrict the movement of the rotating assembly to prevent damage to the bearings during transport All such means shall be removed before installation Uncrating and Lifting Pump is fastened securely to the crate before shipment The pump should be removed from the crate carefully by using proper tools and equipment...
Страница 5: ...s with metal blank flanges and a minimum of four bolts If mechanical seals have been used then the annular opening between gland plate and shaft should be closed by a removable sealing ring supplied by the original equipment manufacturer to exclude airborne dust Additionally all connections in the seal cartridge must be plugged or sealed All exposed painted surfaces should be dry clean and free of...
Страница 6: ...all of the above mentioned conditions However it is recommended to provide a weather shelter for your pump DISCHARGE PIPING GATE VALVE CHECK VALVE SUCTION NOZZLE PIPE SUPPORT SUCTION PIPING FOOT VALVE STRAINER PIPE HANGERS DISCHARGE TANK DISCHARGE NOZZLE Figure 2 Recommended location Short direct suction Figure 2 Recommended location Short direct suction DISCHARGE PIPING GATE VALVE CHECK VALVE DIS...
Страница 7: ...evel on pump flanges Figure 8 Leveling with spirit level on pump flanges Leveling the pump can require enough shims to support the base plate near the foundation bolts and at any points of the base plate carrying a substantial weight load The shims should be large enough to allow a gap of 3 4 to 1 1 2 between the base plate and foundation for grouting NOTICE The pump base must be set level to avoi...
Страница 8: ... have a gradual rise to the pump and pass under any interfering piping See Figure 10 shown below FOOT VALVE STRAINER LONG RADIUS ELBOW TAPERED ECCENTRIC REDUCER DISCHARGE SUCTION Figure 10 Recommended suction lift piping Short and direct Figure 10 Recommended suction lift piping Short and direct TAPERED ECCENTRIC REDUCER PIPE SUPPORT GATE VALVE SUCTION PIPING DISCHARGE SUPPLY TANK Figure 11 Recomm...
Страница 9: ... Figures 17A 17B and 18 shown below SUCTION ECCENTRIC TAPERED REDUCER ELBOW CORRECT Figure 17A Correct Installation of eccentric tapered Reducers DISCHARGE Figure 17A Correct Installation of eccentric tapered reducers SUCTION ECCENTRIC TAPERED REDUCER INCORRECT AIR POCKET Figure 17B Incorrect Installation of eccentric tapered reducers DISCHARGE Figure 17B Incorrect Installation of eccentric tapere...
Страница 10: ...etaining the liquid in the suction line A slow closing check valve should be installed when the static discharge head is high A foot valve should not be used under these conditions as failure of the driver would allow the water to rush back rapidly thus causing a heavy water hammer Foot valves when used should be the flat type rather than multiple spring type The valve should have a large inlet ar...
Страница 11: ...onsiderable damage to the parts Strainers should be selected to have a total area of holes equal to at least four times the suction pipe area In applications where stick twigs leaves and other large debris are present a larger outside screen should be placed around the suction inlet to prevent choking of the strainer This screen should have sufficient openings so that flow velocity does not exceed...
Страница 12: ...ial to zero rotate both coupling halves together making sure the indicator button always indicates off the same spot Misalignment values within 0 004 inches TIR per inch of coupler radius is permissible To check parallel misalignment mount the dial indicator base to one coupling half or shaft and position the dial indicator button on the outside diameter of the opposite coupling half Set the dial ...
Страница 13: ...e frequent Applicable to 3804 series pumps Use Chevron SRI Grease NLGI grade 2 Before running the driver either separately or connected to the pump check lubrication and cooling requirements Proper lubrication is critical for trouble free long term operation of the equipment Lubrication methods and frequency vary with bearing type application environment and the unique operating characteristics of...
Страница 14: ... bucket and funnel Refer to Figure 35 shown above It is important to completely fill the suction pipe and pump casing with liquid When the pump is started the vacuum created by pumping the priming fluid combined with atmospheric pressure in the liquid well forces liquid into the suction piping thus opening the valve and keeping it open until the pump is shut down When the pump is shut down the liq...
Страница 15: ...eration Refer to Figure 39 PRIMING INDUCTOR NOZZLE LIQUID SUPPLY PRESSURE LINE DISCHARGE SUCTION AIR VENT Figure 39 Inductor priming Figure 39 Inductor priming SHAFT SEALING SETTINGS AND ADJUSTMENTS Mechanical Seals A mechanical seal consists of a rotating element and a stationary element The sealing faces are highly lapped surfaces on materials selected for their low coefficient of friction and t...
Страница 16: ... avoid any water hammer effect However this practice is not mandatory and pump may be stopped with discharge valve open in case an emergency Preferred shutdown sequence is as follows 1 Preferably close the discharge valve first 2 Then turn off the motor 3 Now close the suction line valve 4 Drain the pump liquid completely if pump to be kept nonoperational for longer period or if there is danger of...
Страница 17: ...wntime the below mentioned components should be kept handy in case the pump is to be shut down for maintenance The components are Mechanical seal Wear rings Gaskets O rings seals Notice Refer to Table 2 before ordering seal kit corresponding to power frame numbers in case of Pentair Aurora 3804 pumps Table 2 Pentair Aurora 3804 pumps seal kit selection matrix IMPELLER SIZE1 POWER FRAME NO POWER FR...
Страница 18: ...tling of the mechanical seal power frame disassembly and complete pump disassembly The second part covers installation of mechanical seal power frame reassembly and complete pump assembly Refer to the exploded pump diagram Figures 45 and 46 on Pages 23 24 for item numbers Complete Pump Disassembly Pentair Aurora Model 3804 3801 SUDDEN START UP HAZARD Disconnect and lock out power source before ser...
Страница 19: ... seal flexible cup and stationary seat should be pressed out of the seal plate and the cavity cleaned of all residues Make sure that the seal cavity is not damaged during disassembly since sharp edge can easily damage the elastomer on the mechanical seal during reassembly The mechanical seal is a precision product and must be treated as such During removal great care must be taken to avoid droppin...
Страница 20: ...7 Position the Seal Plate 35A on the bracket 35B and secure with cap screws 5B Tighten screws evenly to assure proper alignment Installation of the Mechanical Seal 3801 3804 Pumps 8 Thoroughly clean the shaft sleeve and seal plate seal cavity Replace the shaft sleeve 25 or seal plate 35A if there is evidence of surface damage like pitting corrosion nicks or scratches 9 Lubricate the shaft sleeve 2...
Страница 21: ...er for correct impeller sizing Excessive power consumption Speed too high Check and ensure correct voltage at motor terminals Rubbing or binding of rotating elements Check if rotating elements are not rubbing against stationary components Shaft bent Inspect shaft for any deformation and replace Worn wear rings Check and replace wear rings if equipped Head lower than rating pumps too much liquid Co...
Страница 22: ...g elements Check if rotating elements freely rotate Defective motor Check and replace motor Motor runs hot Speed too high Check and ensure correct voltage at motor terminals Voltage lower than rated Check and ensure correct voltage at motor terminals Rubbing or binding of rotating elements Check if rotating elements are not rubbing against stationary components Note The pump delivered may not be f...
Страница 23: ... 98 27 19 ASSEMBLYEXPLODEDVIEW 35B 5B 35A 5 8 27 25 10 12 11 9A 9B 9C 9 6 4A 4B 5A 5 Figure 45 PENTAIR AURORA MODEL 3801 CLOSE COUPLED CONFIGURATION Figure 45 Pentair Aurora Model 3801 close coupled configuration ...
Страница 24: ...VIEW PENTAIR AURORA MODEL 3804 FRAME MOUNTED CONFIGURATION Figure 46 Pentair Aurora Model 3804 frame mounted configuration 9 35B 5B 42 43 51A 48 49 52 53 55 34 54 57 43 51 63A 62A 64 35A 5 8 27 25 10 12 11 9A 9B 9C 6 4A 4B 47 5A 5 Figure 46 ...
Страница 25: ...eller seal 10 O ring 11 Impeller 12 Impeller key 25 Sleeve 27 Mechanical seal 32 Cap screw 33 Screw 34 Nameplate 35A Seal plate 35B Motor bracket 42 Key 43 Grease fitting 47 Slinger 48 Cap screw 49 Bearing cap 52 Retaining ring 53 Bearing 54 Bearing 55 Shaft 57 Power frame 62A Cap screw 62B Nut 63 Washer 64A B Foot support PENTAIR AURORA 3801 AND 3804 Reference Figure 45 46 Exploded Views ...
Страница 26: ...ESS FOR A PARTICULAR PURPOSE Seller s sole obligation under this warranty shall be at its option to repair or replace any equipment or its component parts which has a defect covered by this warranty or to refund the purchase price of such equipment or part Under the terms of this warranty Seller shall not be liable for a consequential collateral special or liquidated losses or damages b equipment ...
Страница 27: ...trademarks and logos are owned by Pentair PLC or its affiliates Third party registered and unregistered trademarks and logos are the property of their respective owners Because we are continuously improving our products and services Pentair reserves the right to change specifications without prior notice Pentair is an equal opportunity employer A 03 327 09 27 19 2019 Pentair All Rights Reserved ...
