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Summary of Contents for Pentair 1650
- Page 1 END SUCTION PUMPS 1620 1650 Model 1650 Model 1620 INSTALLATION AND OPERATION MANUAL pentair.com FM-03-536 (11/12/19) FM-03-536 (07/15/21) ©2021 Pentair. All Rights Reserved.
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Page 2: Table Of Contents
TABLE OF CONTENTS SECTION .........................................PAGE General 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 ........................................ -
Page 3: General Information
This manual contains important information for the safe use of Isolate the pump from any fluid in the system and then Pentair Fairbanks Nijhuis ® 1600 End Suction Pumps. Read this manual drain any remaining fluid from the pump casing before proceeding with completely before using this product. -
Page 4: Transport And Storage
All such means shall be removed before installation. Figure 1B Lifting of Pentair Fairbanks Nijhuis 1650 pump assembly Figure 1B Uncrating and Lifting Receipt, Inspection, and Damage Reporting Lifting of 3801 pump assembly Pump is fastened securely to the crate before shipment. -
Page 5: Product Description
Clean all parts of dirt, packing materials, and other foreign matter. Clean all non-coated machined surfaces. If the pump is to be installed • Pentair Fairbanks Nijhuis 1650 close coupled immediately, then clean all coated machined surfaces too. Remove •... -
Page 6: Pump Installation
PUMP INSTALLATION INSTALLATION DISCHARGE PIPING Pump Location • Pentair Fairbanks Nijhuis ® 1600 End Suction pump must be installed GATE VALVE horizontally. CHECK VALVE • The pump should be located as close to the liquid source as DISCHARGE possible so that the suction line can be short and direct. - Page 7 NOTICE: The pump base must be set level to avoid any mechanical difficulties with the pump or motor. Pentair Fairbanks Nijhuis ® 1620 pump was properly aligned, if supplied with a motor, at the factory. However, since the pump base is flexible, it may spring and twist during shipment.
- Page 8 PUMP INSTALLATION LONG EXCESSIVE Piping and Connections DISCHARGE UNSUPPORTED NUMBER OF PIPING ELBOWS Inlet and outlet piping should be anchored, supported, and restrained near the pump to avoid application of forces and moments to the pump in excess. In calculating forces and moments, the weights of the pipe, internal thrust, contained fluid and insulation, as well as thermal expansion and contraction, should be considered.
- Page 9 PUMP INSTALLATION nozzle, but if it is unavoidable, they should be installed in a vertical SUCTION position. Elbows installed in any position at the suction nozzle have ECCENTRIC a tendency to distribute the liquid unevenly in the impeller chamber, DISCHARGE TAPERED POCKET REDUCER...
- Page 10 The recommended pipe diameter can a flooded suction condition exists and a gate valve is required to shut off be obtained from your nearest Pentair Fairbanks Nijhuis® authorized the liquid supply for pump inspection and maintenance. The gate valve distributor or Customer Service.
- Page 11 PUMP INSTALLATION Air Vent Valves BELLOWS TYPE DISCHARGE Vent valves are installed at the high points in the pump casing to allow EXPANSION JOINT air or vapor to escape. These valves are used to release trapped air from the pump casing during priming and when pump becomes air bound. See Figure 25 shown below.
- Page 12 PUMP INSTALLATION To check angular alignment, insert a feeler gauge or taper gauge at any Pipe Alignment four places 90° apart around the coupling halves. Insert shims under the Proper piping alignment is essential before connection is made. Piping driver feet until the same reading is obtained at all four check points. alignment should never be achieved by force, as this could produce The pump and driver will then be in angular alignment.
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Page 13: Pump Operation
PUMP OPERATION DISCHARGE COMMISSIONING, START-UP, OPERATION, AND SHUTDOWN AIR POCKET SUCTION Lubrication In dry locations, each bearing will need lubrication at least after every 4,000 hours of running time or 6 to 12 months, whichever is more frequent. In wet locations (exposed to dripping water, to the weather INCORRECT or to heavy condensation found in unheated or poorly ventilated DECREASER... - Page 14 PUMP OPERATION slowly until a steady stream of liquid is observed flowing from the air vent. After your pump is operating, it is recommended that the air vent valve or plug be opened again to ensure that all air has been expelled from the pump casing.
- Page 15 PUMP OPERATION DISCHARGE SPINDLE SUCTION AIR VENT PRESSURE LINE INLET STEAM INLET FROM PUMP LIQUID SUPPLY PRIMING INDUCTOR STEAM AND AIR DISCHARGE NOZZLE Figure 39 Figure 37 Figure 37 Inductor priming Figure 39 Ejector cutaway (Ejector cutaway) Inductor priming Vacuum Pumps SHAFT SEALING SETTINGS AND ADJUSTMENTS Rotary or reciprocating pumps are frequently used as vacuum pumps.
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Page 16: Pump Maintenance And Service
PUMP MAINTENANCE AND SERVICE Operation MAINTENANCE AND SERVICE The following points must be ensured before starting the pump: Schedule 1. The current supply agrees with the voltage and frequency on the Preventive maintenance and routine check-ups may prevent the pump motor nameplate. - Page 17 8-10 hours, which is the break-in EXCEPT 3550009644 4761255644 period for seal. During this operation the mechanical seal would ‘seat’ 6" 1621 properly. Pentair Fairbanks Nijhuis ® 1600 pumps are supplied with type 21 mechanical seal. 3550008644 4761256644 FLEXIBLE CUP 6" 1621 3550009644...
- Page 18 Tightening torques for common bolt diameter can be 6. For Pentair Fairbanks Nijhuis 1620 pumps, loosen the set screws in found in Table 4 below. both coupling halves and slide each half back as far as possible on its shaft.
- Page 19 Do not remove them. Utilize two casing bolts to jack the power mechanical seal. frame assembly (for 1620)/ motor assembly (for 1650) out from the 14. The seal flexible cup and stationary seat should be pressed out of casing (#6).
- Page 20 15. Tighten volute cap screws (#5) per torque chart (see Table 4 on Page 18). Inspection 16. For Pentair Fairbanks Nijhuis 1620 pumps, install foot support cap Once the pumping unit is disassembled, component parts should be screws (#62) inspected to determine their condition. Ball bearings that turn roughly 17.
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Page 21: Troubleshooting Guide
TROUBLESHOOTING GUIDE THE FOLLOWING IS A LIST OF COMMON PROBLEMS AND THEIR PROBABLE CAUSES. Symptoms Possible causes Possible remedies Check and ensure correct voltage at motor terminals Speed too low Check if rotating elements freely rotate Check motor rotation with direction arrow on casing Wrong direction of rotation Ensure correct motor wiring Ensure all air is vented, and pump is adequately primed... - Page 22 Rubbing or binding of rotating elements stationary components Note: The pump delivered may not be fitted with all the components mentioned in the troubleshooting guide. For further troubleshooting assistance, contact Pentair Fairbanks Nijhuis Customer Service or your nearest Pentair Fairbanks Nijhuis authorized distributor. FM-03-536 (07/15/21)
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Page 23: Assembly Exploded View
ASSEMBLY EXPLODED VIEW PENTAIR FAIRBANKS NIJHUIS ® MODEL 1650 CLOSE COUPLED CONFIGURATION Figure 45 Figure 45 Pentair Fairbanks Nijhuis Model 1650, close coupled configuration FM-03-536 (07/15/21) - Page 24 ASSEMBLY EXPLODED VIEW PENTAIR FAIRBANKS NIJHUIS ® MODEL 1620 FRAME MOUNTED CONFIGURATION Figure 46 Figure 46 Pentair Fairbanks Nijhuis Model 1620, frame mounted configuration FM-03-536 (07/15/21)
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Page 25: Part List
PART LIST PENTAIR FAIRBANKS NIJHUIS ® 1650 AND 1620 Reference: Figure 45, 46 (Exploded Views) ITEM NO. DESCRIPTION Pipe plug 4A/B. Cap screw Cap screw washer Cap screw Casing Gasket Impeller screw Impeller washer Impeller gasket Impeller seal O-ring Impeller... -
Page 26: Pump - Impeller Size Relation
PUMP - IMPELLER SIZE RELATION PUMP MODEL MAX IMPELLER DIAMETER 1-1/4" 16x1 1-1/2" 16x1 2" 16x1 2-1/2" 16x1 7" 3" 16x1 4" 16x1 5" 16x1 1-1/4" 16x2 1-1/2" 16x4 2" 16x2 2-1/2" 16x2 9.5" 3" 16x2 4" 16x2 5" 16x2 6"... -
Page 27: Standard Limited Warranty
LIMITED WARRANTY Seller warrants equipment (and its component parts) of its own manufacture against defects in materials and workmanship under normal use and service for one (1) year from the date of installation or start-up, or for eighteen (18) months after the date of shipment, whichever occurs first. Seller warrants 1600 series end suction pump models for a period of five (5) years from the date of installation or start-up, or for sixty (60) months after the date of shipment, whichever comes first. - Page 28 800 Airport Road | North Aurora, Illinois 60542 | Ph: 630.859.7000 | pentair.com All indicated Pentair trademarks and logos are property of Pentair. 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.