Author: admin

  • SELF-PRIMING TANK

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    Installing a self-priming tank, if your SAL pump is used for vertical, upward suction, it will be possible for you to use the pump for the following applications: 1. Install where a general-purpose pump with foot valve is being used. There are many cases of problems arising with a foot valve pump because the valve…

  • FAQ-Pump Troubleshooting 5

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    The pump vibrates and is noisy when operating. Below are some common causes of malfunctions and solutions.If you are unable to resolve the problem, please contact us. Cause Countermeasure The bearing is damaged  Replace the bearing Too much discharge  Adjust the discharge valve to the specified water volume. The impeller is clogged with foreign matter …

  • FAQ- Pump Trouble Shooting 4

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    Overload (overcurrent) Below are some common causes of malfunctions and solutions.If you are unable to resolve the problem, please contact us. Cause Countermeasure High rotation speed. The number of poles of the motor is different.  Check the nameplate and replace it with a genuine one High voltage  Check the power supply A 50Hz pump is…

  • FAQ- Pump Trouble shooting 3

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    Water comes out at first but soon stops Below are some common causes of malfunctions and solutions.If you are unable to resolve the problem, please contact us. Cause Countermeasure Insufficient priming  Prime the tank sufficiently Inhaling air  Inspect and repair the suction pipe and shaft seal. Air trapped in the suction piping  Reinstall the piping…

  • FAQ- Pump Troubleshooting 2

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    The pump rotates but no water comes out. The specified discharge volume is not achieved. Below are some common causes of malfunctions and solutions.If you are unable to resolve the problem, please contact us. CAUSE Countermeasure Unprimed  To bait The gate valve is closed or ajar  Open the gate valve The rotation direction is reversed …

  • FAQ – Troubleshooting 1

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    The motor does not turn. The motor hums but does not turn. Below are some common causes of malfunctions and solutions.If you are unable to resolve the problem, please contact us. Cause Countermeasure The motor is broken  Repairing an electric motor There is a problem with the power supply  Inspect and repair Rotating parts are…

  • Instruction Manual EBARA Quick Discharge connector for submersible pumps

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    MODEL LS, LM, LL Safety Information and Introduction WARNING Do not work under heavy suspended object unless there is a positive support under it to stop Its fall in event of sling or hoist failure. Disregard of this war­ning could result in personal injury. This Quick Discharge Connector should only be serviced by a qualified…

  • DIAGRAMMATIC FIRE PUMP  INSTALLATIONS

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    Sprinkler System        A sprinkler system is an integrated system of piping, connected to a water supply, with listed sprinklers that automatically initiate water discharge over a fire area. Usually the sprinkler system also includes a control valve and a device for activating an alarm when the system operates.          Each sprinkler has its own individual heat…

  • EBARA FSSC – INTRODUCTION

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    OIL lubrication – Bearing 1,Selection of turbine oil.ISO VG46 2,Maintenance Change the oil after 300 hours for new bearings.Add oil until level is at the center of the sight glass. 3,Sight glassDimensions comply with JB/T7941.2Technical requirements comply with GB1163 Flushing for gland packing 1) If delivered liquid temperature is over than 100℃, external flushing is…

  • CLASSIFICATION OF PUMPS

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    CLASSIFICATION OF TURBO PUMPS Turbo pumps are loosely grouped into the following three types.1- Centrifugal PumpPump head caused primarily by the centrifugal force of impeller rotation. This type pump is widely used for its high head capability. 2-Mixed Flow PumpHere pump head is derived partly from rotation of the impeller, partly from impeller lift. 3-Axial…

  • FUNDAMENTALS OF PUMP TECHNOLOGY

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    EBARA CORPORATION I- Our lives and pump Water is essential for our lives. Although we usu­ally use water without thinking, benefits that we obtain from it are immeasurable. Life with an abundance of water is our fervent hope. Pumps help us to realize this hope and therefore we cannot do without them. It is hardly…

  • Instruction Manual EBARA Submersible Semi-Vortex Sewage Pumps DVS

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    Introduction Check the following points upon receipt of your pump:(1) Is the pump exactly what you ordered? Check the name­ plate. It is especially important that you check whether the pump is to be used with 50 Hz or 60 Hz.(2) Has any damage occurred during shipment? Are any bolts or nuts loose? (3) Have…

  • Instruction Manual EBARA End Suction Volute Pumps GS

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    Installation 1. Location (1) This pump should be installed indoors (except for option pump of outdoor ＋ motor of outdoor).(2) There should be ample space around the pump, and securing a large working space for maintenance and inspection.(3) Provide an enclosure around the pump, or take some other effective measures to prevent unauthorized personnel from…

  • INSTRUCTION MANUAL EBARA HORIZONTAL SPLIT CASING CENTRIFUGAL PUMP

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    Model CSA & CNA Safety Information and Introduction WARNINGBefore handling this pump, always disconnect the power first. No open flame or use spark able electrical devices or flames in a septic (gaseous) or possible septic sump. Do not work under heavy Suspended object unless there is a positive support under it to stop its fall…

  • Regular Submersible Motor Inspections

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    Daily Inspections (1) Check for excessive vibration and strange sounds.(2) Check working order(3) Check electric current values.Remarks Confirm that there are no sudden changes in current or pressure.Measure and record values regularly. Monthly Inspection (1) Measure insulation resistance.(2) Measure continuity. Check insulation resistance lower limits.Confirm U-V, V-W, W-U thermal protectors continuityConfirm that thermal protector coil…

  • INSTRUCTION MANUAL EBARA End Suction Volute Pump MODEL FSA

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    Installation 1.LOCATION (1) This pump should be installed indoors. If it is to be used outdoors, some type of roof or covering will be required to protect the pump from the weather.(2) Install where inspection and maintenance can be easily performed.(3) Provide suitable enclosure to prevent entry of unauthorized persons.(4) Install pump as close to…

  • EBARA VERTICAL IN-LINE CENTRIFUGAL PUMP Instruction Manual

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    Model LPDC 1.Installation location (1)This pump should be installed indoors. If it is to be used outdoors, some type of roof or covering will be required to protect the pump from the weather.(2) Install where inspection and maintenance can be easily performed. (3) Provide suitable enclosure to prevent entry of unauthorized persons.(4) Install pump as…

  • Regular Diesel Engine Inspections

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    Daily Inspection (1) Inspect appearance.(2) Check for vibration and unusual sounds.(3) Check bearing temperature.(4) Check lubricating oil pressure.(5) Check lubricating oil level.(6) Drain air from tank.(7) Check exhaust gas color Monthly Inspection (1) Clean fuel filter.(2) Clean lubricating oil filter.(3) Oil all sliding parts.(4) If the unit has not been in use for an extended…

  • Understanding Pressure Drop in Valves: A Visual Guide

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    PRESSURE DROP/FLOW RATE DIAGRAM – BALL VALVE PRESSURE DROP ΔP DIAGRAM – CHOKE VALVE ( Butterfly valve) PRESSURE DROP ΔP DIAGRAM – FOOT VALVE ( Bottom valve) PRESSURE DROP ΔP DIAGRAM – BRASS CHECK VALVE PRESSURE DROP ΔP DIAGRAM – FLANGED CHECK VALVE IN CAST IRON PRESSURE DROP IN EQUIVALENT LENGTH OF PIPE IN METRES…

  • Effects of Sudden Changes on Pipe Pressure

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    DN = Nominal pipe diameterDi = Effective internal diameter of pipeFor the continuous pressure drop in the cone, consider an equivalent length of pipe of diameter DN1= L PRESSURE DROPS DUE TO SUDDEN ENLARGEMENT IN WATER COLUMN METRES PRESSURE DROPS DUE TO SUDDEN RESTRICTION IN WATER COLUMN METRES PRESSURE DROPS LOCALISED TO DIVERGENT ISO CONES…