Summary of Contents for Southern Cross SBI Series
- Page 1 Installation and Operating Instructions VERTICAL MULTI-STAGE CENTRIFUGAL PUMPS Models 1, 3, 5, 10, 15, 20, 32, 45, 64, 90...
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Page 2: Technical Data
Read these instructions carefully before beginning installation. Lift and handle these pumps carefully. SBI & SBN series are vertical multi-stage non-self priming pumps coupled with standard electric motors. This manual applies to standard version pumps and for standard applications. Contact your Southern Cross Dealer for information about special pump versions and applications. -
Page 3: Installation
SBI/SBN Vertical Multistage Centrifugal Pumps 4.3 Minimum inlet pressure-NPSH To avoid cavitation, make sure that there is a minimum pressure on the suction side of the pump. NPSH : Net Positive Suction Head Available — The net positive suction head available is a function of the pump suction system. - Page 4 SBI/SBN Vertical Multistage Centrifugal Pumps 5.3 Installation example When positioning and installing the pump, follow the installation examples below in order to avoid damaging the pump. Pos. Description Pipe support: Support piping system properly to avoid stresses on connections. On-off valves: Install on-off valves for easy access- before the pump intake and after the pump discharge.
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Page 5: Electrical Connection
SBI/SBN Vertical Multistage Centrifugal Pumps If it is necessary to increase the diameter of the suction pipe, place an eccentric reducer between the check valve and the flexible pipe section. Using elbows will increase the flow resistance. Long radius bends will result in less flow resistance. The piping must have a level or positive gradient to prevent the formation of air pockets. - Page 6 SBI/SBN Vertical Multistage Centrifugal Pumps WARNING: and the pipe system If the pump is installed in a location where it is subject to freezing when not in operation, then the pump should be drained to prevent damage from freezing. 7.2 Others (Only for SBI, SBN 1, 3, 5 series) —...
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Page 7: Maintenance
SBI/SBN Vertical Multistage Centrifugal Pumps 8. Maintenance WARNING: Before starting maintenance work on the pump, the motor, or other parts of the system, make sure that the power supply has been switched off. — The pump does not have a recommended maintenance schedule. —... - Page 8 SBI/SBN Vertical Multistage Centrifugal Pumps Fault Probable cause Possible Solution The frequency of a. Leakage in the foot valve, check valve or system. Repair or replace the components. pump start-up is b. Ruptured membrane or no air pre-charge in surge tank. See relevant instructions in surge tank’s manual.
- Page 9 SBI/SBN Vertical Multistage Centrifugal Pumps Pump Ø Type SBI 1 25/32 SBI 3 25/32 SBI 5 25/32 SBI 10 SBI 15 4xø SBI 20 SBI 32 SBI 45 SBI64 SBI90 SBI, SBN 1, 3, 5 Coupling Adjustment...
- Page 10 SBI/SBN Vertical Multistage Centrifugal Pumps SBI, SBN 10, 15, 20, 32, 45, 64 Coupling Adjustment...
- Page 11 SBI/SBN Vertical Multistage Centrifugal Pumps Form 2825 Dec 2009 Telephone 131 PUMP www.tycopumpingsystems.com...
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