1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance Series Single Stage End Suction Pumps 1500 and 2500 Table of Contents Description Page Models 1500 and 2500 Installation Instructions 3–6 Models 1500 and 2500 Operation Instructions 7–10 Models 1550, 1530, 1520, 2550, 2530 and 2520 Maintenance and Repair Instructions 11–19...
1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance MODELS 1500 AND 2500 INSTALLATION INSTRUCTIONS PUMP LOCATION: You probably have spent considerable time planning where your pump will be located; however, you may have overlooked some factor that may affect pump operation or efficiency. The pump should be located as close to the liquid source as possible so that the suction line can be short and direct.
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1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance GROUTING THE INSTALLATION: SOUPY GROUT Grouting the base plate prevents lateral movement of the base plate and improves the vibration absorbing FOUNDATION BOLTS characteristics of the foundation by increasing its mass. A wooden dam should be constructed around the base plate to ROLLED STEEL BASE contain the grout while it is being poured.
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1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance To check parallel alignment, hold a straight edge against the edges of the coupling halves at any four places 90° apart around the coupling. The straight edge should be parallel to the pump and driver shafts at all times. Insert shims until the straight edge lies flat against both coupling halves at all four checkpoints.
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1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance PIPE: GATE The discharge pipe diameter should be the same as, or larger than, the discharge VALVE nozzle diameter. DISCHARGE DISCHARGE VALVES: PIPING CHECK VALVE The discharge piping should include a check valve and a gate valve. The check valve should be located between the gate valve and the pump.
1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance MODELS 1500 AND 2500 OPERATION INSTRUCTIONS Centrifugal pumps operate under a wide range of conditions. The pump you have selected exactly fits your specific requirements. Before putting your pump into operation, however, there are certain basic ground rules that must be followed to assure maximum efficiency, long pump life, and maintenance-free service.
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1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance PRIMING THE PUMP: Your pump will not operate satisfactorily until it is primed. All air must be expelled from the suction piping and pump casing and replaced by the liquid to be pumped.
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1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance AIR EJECTOR: One type of vacuum primer is the air ejector. If liquid under pressure, or steam, is available, an ejector can be used. The ejector is connected to the air vent orifice. A stream of the ejecting medium is passed through the ejector, creating a vacuum in the ejector and drawing air from the pump casing and suction piping.
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1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance POSITION OF SUCTION PIPING GATE VALVE: In flooded suction applications, the gate valve is opened when the pump is being primed and will remain open for starting and operation. COOLANT VALVES: Valves in the cooling liquid line should be opened prior to starting the pump, and should remain open while the pump is in operation unless it is desirable to...
1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance MODELS 1550, 1530, 1520, 2550, 2530 AND 2520 MAINTENANCE AND REPAIR INSTRUCTIONS NOTE: This repair manual is applicable to pump Models 1550, 1530, 1520, 2550, 2530 and 2520. All photos illustrate Model 1520 and 2520.
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1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance WARNING: Expansion Hazard Water expands when heated. Install properly sized thermal expansion tanks and relief valves. Failure to follow these instructions could result in serious personal injury, death or property damage. SERVICE: Your Fairbanks Nijhuis pump requires no maintenance other than periodic inspection, occasional cleaning and lubrication of bearings (Model 1520/2520 only).
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1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance running time or every 4–6 months, whichever is more frequent. A unit is considered to be installed in a wet location if the pump and motor are exposed to dripping water, to the weather, or to heavy condensation such as is found in unheated and poorly ventilated underground locations.
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1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance DISASSEMBLY: Disassemble only what is needed to make repairs or accomplish inspection. (See Figure 26/29 for Model 1550/2550, Figure 27/30 for Model 1530/2530 and Figure 28/31 for Model 1520/2520.) 1.
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1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance Fig. 15 1520 Casing, Gasket, and Fig. 16 1520 Water Jacket Fig. 17 1520 Mechanical Seal Wear Ring Removed. Removed. Removed. C. Slide sleeve (25) with rotating parts of mechanical seal (27) from the shaft. The sleeve should be carefully cleaned to remove any residue that may remain in the seal area.
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1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance 14. For Models 2550, 2530, 2520: The seal flexible cup and stationary seat should be pressed out of the bracket (35) and the cavity cleaned of all residue. Make sure that the 1/32" radius in the seal seat cavity is not damaged during disassembly since a sharp edge can easily cut the flexible cup during reassembly.
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1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance NOTE: If it is not possible to insert seat with fingers, place the cardboard protecting ring furnished with seal over lapped face of seat and press into place with a piece of tubing having end cut square.
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1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance capscrews should be either loosened or tightened one quarter turn at a time to acquire the correct leakage (both nuts or capscrews must be turned equally to prevent cocking of the gland). It will take approximately ten minutes at any one gland setting before the leakage rate will stabilize.
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1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance READ BEFORE INITIAL STARTING OR STARTING AFTER REASSEMBLY STARTING PUMP AFTER REASSEMBLY: Do not start pump until all air and vapor has been bled and until making sure that there is liquid in the pump to provide the necessary lubrication.
1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance Model 1550 List of Parts 1. Elbow 9B. Gasket 19. Gasket 27. Seal 2. Connector 9C. Capscrew Seal 19A. Gasket 28. Packing 3. Tubing 10. Gasket 20. Capscrew 29.
1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance 66 27 25 61 14 9A 9B 9C THESE PARTS ARE USED ON PUMPS WITH LANTERN RING ONLY. IF PUMP IS NOT EQUIPPED WITH A LANTERN RING, ADDITIONAL PLUG (67) IS USED. 22 28 MECHANICAL SEAL WITH WATER JACKET PACKING WITH LANTERN RING...
1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance THESE PARTS ARE USED ON PUMPS WITH LANTERN RING ONLY. IF PUMP IS NOT EQUIPPED WITH A LANTERN RING, ADDITIONAL PLUG (67) IS USED. 22 28 MECHANICAL SEAL WITH WATER JACKET PACKING WITH LANTERN RING AND WATER JACKET Fig.
1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance 27 25 61 26 14 9A 9B 9C NOTE: PC#50 NOT REQUIRED WITH GREASE LUBE PUMPS. THESE PARTS ARE USED ON PUMPS WITH LANTERN RING ONLY. IF PUMP IS NOT EQUIPPED WITH A LANTERN RING, ADDITIONAL PLUG (67) IS USED.
1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance Model 2550 List of Parts 1. Elbow 8. Gasket 12. Impeller Key 33. Screw 2. Connector 9. Impeller Screw 14. Wear Ring 34. Nameplate 3. Tubing 9A. Washer 15.
1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance NOTES: 1. Bronze fitted construction will be furnished as standard unless specified otherwise. 2. Refer to factory for special alloys. 3. Fairbanks Nijhuis reserves the right to substitute materials without notice.
1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance Fig. 30 Model 2530 Exploded View Fairbanks Nijhuis™ 12/21/12...
1500 and 2500 Series Single Stage End Suction Pumps Installation, Operation & Maintenance Fig. 31 Model 2520 Exploded View 12/21/12 Fairbanks Nijhuis™...