Walrus Systemflo SLB-C Series Installation And Operation Manual Download Page 1 | Manualshive

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Installation and

O

perati

on

M

anual

SLB-C, SLB-S, SLB-N SERIES

VERTICAL MULTISTAGE CENTRIFUGAL

PUMPS

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Summary of Contents for Systemflo SLB-C Series

Page 1: ...Installation and Operation Manual SLB C SLB S SLB N SERIES VERTICAL MULTISTAGE CENTRIFUGAL PUMPS ...

Page 2: ...mation about special pump versions and applications 3 Application SLB C SLB S SLB N series in line pumps are designed for a wide range of applications in various industries water treatment water boosting water supply cooling cleaning etc 3 1 Pumped liquids The pumps are designed for use with clean non explosive liquids that do not contain abrasive material These pumps are not designed to be used w...

Page 3: ...st in meters head Ha Barometric pressure That can be set to 10 2 m Hs Suction lift Hf Friction loss in suction pipe Hv KT KH Vapor pressure KT Flow resistance due to liquid temperature KH Flow resistance due to elevation above sea level If the liquid is water you can consult the tables to determine the values of KT and KH Hst Safety margin minimum 0 5 meters head NPSH A NPSH R Pump running will be...

Page 4: ...nal regulations and codes relating to the selection of the installation site the water and power connections etc 5 1 Position Pumps should be installed in a protected environment not exposed to weather Make sure that there are no obstructions to prevent proper motor cooling 5 2 Anchoring The pump must be secured to a solid foundation by bolts through the holes in the flange or base plate An illust...

Page 5: ...h input and output sides of the pump to reduce vibration and transmission of noise 4 Check valves will prevent return flow of pumped liquid when pump is stopped reducing the danger of pump damage 5 Make sure that the control panel conforms to local standards and regulations 6 Do not place elbows next to the pump intake and discharge 7 If pump needs to be operated with on off valve closed install a...

Page 6: ...sistance 10 The piping must have a level or positive gradient to prevent the formation of air pockets 11 The diameter of the drop pipe must be larger than the diameter of the pump s suction port 12 Use a foot valve in case of negative suction head 13 Size pump for correct head 14 Place the intake of the suction pipe so that the intake is always submerged to prevent entry of air 15 Install a compou...

Page 7: ...ded We strongly recommend installing dry running protection 7 Start up The pump and suction pipe should be filled with liquid before start up to prevent dry running Dry running can damage the pump bearing and shaft seal 7 1 Operation Start the pump and check the direction of rotation of the motor three phase motors Start the pump while the on off valve of the discharge is closed Right after start ...

Page 8: ... procedure easier When the operation is stable the bypass valve can be closed If the pumped liquid contains air or the operating pressure is lower than 6 kg cm it is advisable to leave the bypass valve open If the operating pressure constantly exceeds 6 kg cm the bypass valve must be closed Otherwise the material at the opening will be worn out because of the high liquid velocity ...

Page 9: ...The voltage is not within the motor s operating limits Check the operating conditions of the pump The control panel is situated in an excessively heated area or is exposed to direct sunlight Protect the control panel from heat sources and from the sun A phase in the power supply is missing Check the power supply The pump starts up but after a period of time the thermal protector trips Worn motor b...

Page 10: ...oise Cavitation Reduce the required flow or improve the operating conditions of the pump suction conditions head flow resistance liquid temperature viscosity etc Make sure that pump and motor shafts are properly aligned Adjust the pump and or motor shafts Worn motor bearings Replace the bearings or the motor Operation with frequency converter Consult a qualified engineer form the supplier of the f...

Page 11: ...er with all directions and conditions set out in the installation and op erating instructions Failure to comply with these instructions damage or breakdown caused by fair wear and tear negligence misuse incorrect installation inappropriate chemicals or additive in the water inadequate protection against freezing rain or other adverse weather conditions corrosive or abrasive water lightning or high...

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