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Sewage pump installation instructions

2024-08-02

sewage pumpDetailed data on installation and maintenance is crucial to ensure proper operation and effective drainage of wastewater.

The following is aboutsewage pumpDetailed data and procedures for installation and maintenance:

1.Installation details

1.1 Location selection

  • Environmental requirements:
    • temperature range：0°C - 40°C
    • Humidity range: ≤ 90% RH (no condensation)
    • Ventilation requirements: Good ventilation, avoid direct sunlight and rain
  • Basic requirements:
    • basic materials: Concrete
    • Foundation thickness：≥ 200 mm
    • levelness：≤ 2 mm/m
  • space requirements:
    • operating space: Leave at least 1 meter of operation and maintenance space around the equipment

1.2 Pipe connection

  • water inlet pipe:
    • Pipe diameter: Should be no less than the diameter of the water inlet of the equipment
    • Material: Stainless steel, PVC, PE, etc.
    • Filter pore size：≤ 5 mm
    • Check valve pressure rating：PN16
    • Gate valve pressure rating：PN16
  • Outlet pipe:
    • Pipe diameter: Should not be less than the diameter of the equipment outlet
    • Material: Stainless steel, PVC, PE, etc.
    • Check valve pressure rating：PN16
    • Gate valve pressure rating：PN16
    • Pressure gauge range：0-1.6 MPa

1.3 Electrical connection

  • Power requirements:
    • Voltage: 380V ± 10% (three-phase AC)
    • frequency：50Hz ± 1%
    • Power cord cross-sectional area:Selected according to equipment power, usually 4-16 mm2
  • Ground protection:
    • Ground resistance：≤ 4Ω
  • control system:
    • Launcher type: Soft starter or frequency converter
    • Sensor type: Pressure sensor, flow sensor, liquid level sensor
    • control Panel: With LCD display to display system status and parameters

1.4 Trial run

  • examine:
    • Pipe connection: Make sure all pipes are firmly connected and there is no leakage.
    • Electrical connection: Make sure the electrical connections are correct and well grounded
  • add water:
    • Amount of water added: Fill the equipment and pipes with water and remove the air
  • start up:
    • Start time: Start the equipment step by step and observe the operation status
    • Operating parameters: Flow, head, pressure, etc.
  • debug:
    • Traffic debugging: Adjust the flow rate according to actual needs to ensure that water needs are met
    • Pressure debugging: Debugging pressure according to actual needs to ensure system stability

2.Maintain detailed data

2.1 Daily inspection

  • Running status:
    • noise：≤ 70 dB
    • vibration：≤ 0.1 mm
    • temperature: ≤ 80°C (motor surface)
  • Electrical system:
    • Wiring firmness: Check whether the wiring is loose
    • Ground resistance：≤ 4Ω
  • piping system:
    • Leak inspection: Check the piping system for leaks
    • Blockage check: Check whether there is any blockage in the piping system

2.2 Regular maintenance

  • lubricating:
    • Lubricating oil type: Lithium-based grease
    • Lubrication cycle: Added every 3 months
  • clean:
    • cleaning cycle: Clean every 3 months
    • clean area: Equipment shell, pipe inner wall, filter, impeller
  • Seals:
    • Inspection cycle: Check every 6 months
    • Replacement cycle: Replace every 12 months

2.3 Annual maintenance

  • Disassembly inspection:
    • Inspection cycle: Conducted every 12 months
    • Check content: Wear of equipment, impellers, bearings, and seals
  • Replacement parts:
    • Replacement cycle: Replace seriously worn parts based on the inspection results.
    • Replacement parts: Impeller, bearings, seals
  • Motor maintenance:
    • Insulation resistance：≥ 1MΩ
    • Winding resistance: Check according to motor specifications

2.4 Records management

  • Operation record:
    • Record content: Equipment operating time, flow, head, pressure and other parameters
    • Recording period:Daily record
  • Maintain records:
    • Record content: Contents and results of each inspection, maintenance and overhaul
    • Recording period: Recorded after each maintenance

sewage pumpVarious faults may be encountered during operation, and understanding these faults and how to deal with them is crucial to ensuring the reliability of the sewage system.

Here are some common onessewage pumpFaults and how to deal with them:

Fault Cause analysis Treatment method

pumpDoes not start
  • power failure: The power is not connected or the voltage is insufficient.
  • Electrical connection issues: The wiring is loose or broken.
  • Control system failure: Starter or control panel failure.
  • Motor failure: The motor is burned out or the winding is short-circuited.
  • Check power supply: Make sure the power is on and the voltage is normal.
  • Check wiring: Check whether the electrical connection is firm and repair loose or broken wires.
  • Check control system: Check the starter and control panel, repair or replace faulty parts.
  • Check the motor: Check the motor winding and insulation resistance, and replace the motor if necessary.

pumpNo water comes out
  • Water inlet pipe blocked: The filter or water inlet is blocked by debris.
  • There is air in the pump body: There is air in the pump body and pipes, causing cavitation.
  • Impeller damaged: The impeller is worn or damaged and cannot work properly.
  • Water absorption height is too high: The water suction height exceeds the allowable range of the pump.
  • Clean water inlet pipes: Clean the debris in the filter and water inlet to ensure smooth water flow.
  • Exclude air: Fill the pump body and pipes with water and remove the air.
  • Check impeller: Check the impeller for wear and replace it if necessary.
  • Adjust water absorption height: Make sure the water suction height is within the allowable range of the pump.

pumpNoisy
  • Bearing wear: Bearings are worn or damaged, resulting in loud operating noise.
  • Impeller unbalanced: The impeller is unbalanced or improperly installed.
  • Pump body vibration: The connection between the pump body and the foundation is not firm, causing vibration.
  • Pipe resonance: Improper pipe installation leads to resonance.
  • Check bearings: Check the wear of the bearings and replace the bearings if necessary.
  • Check impeller: Check the balance of the impeller and reinstall or replace the impeller.
  • Reinforced pump body: Check the connection between the pump body and the foundation and tighten all bolts.
  • Adjust pipeline: Check the installation condition of the pipeline and adjust the pipeline to eliminate resonance.

pumpwater leakage
  • Seals worn: The mechanical seal or packing seal is worn, causing water leakage.
  • Loose pipe connections: Pipe connections are loose or poorly sealed.
  • Pump body cracks: The pump body is cracked or damaged.
  • Replace seals: Check the wear of the seals and replace them if necessary.
  • Tighten pipe connections: Check pipe connections, reseal and tighten.
  • Repair pump body: Check the integrity of the pump body, repair or replace the damaged pump body.

pumpInsufficient traffic
  • Water inlet pipe blocked: The filter or water inlet is blocked by debris.
  • Impeller wear: The impeller is worn or damaged, resulting in insufficient flow.
  • There is air in the pump body: There is air in the pump body and pipes, causing cavitation.
  • Water absorption height is too high: The water suction height exceeds the allowable range of the pump.
  • Clean water inlet pipes: Clean the debris in the filter and water inlet to ensure smooth water flow.
  • Check impeller: Check the impeller for wear and replace it if necessary.
  • Exclude air: Fill the pump body and pipes with water and remove the air.
  • Adjust water absorption height: Make sure the water suction height is within the allowable range of the pump.

pumpNot enough pressure
  • Impeller wear: The impeller is worn or damaged, resulting in insufficient pressure.
  • There is air in the pump body: There is air in the pump body and pipes, causing cavitation.
  • Water absorption height is too high: The water suction height exceeds the allowable range of the pump.
  • pipe leak: There is a leak in the pipeline, resulting in insufficient pressure.
  • Check impeller: Check the impeller for wear and replace it if necessary.
  • Exclude air: Fill the pump body and pipes with water and remove the air.
  • Adjust water absorption height: Make sure the water suction height is within the allowable range of the pump.
  • Check the pipes: Check the integrity of pipes and repair or replace leaking pipes.

Control system failure
  • Sensor failure: Pressure sensor, flow sensor or liquid level sensor failure.
  • Control panel failure: The control panel displays abnormally or cannot be operated.
  • Electrical connection issues: The wiring is loose or broken.
  • Check sensor: Check the connection and status of the sensor and replace the sensor if necessary.
  • Check control panel: Check the connection and status of the control panel and replace the control panel if necessary.
  • Check electrical connections: Check whether the electrical connection is firm and repair loose or broken wires.

Through these detailed faults and processing methods, you can effectively solvesewage pumpProblems encountered during operation ensure that it can operate normally during the sewage discharge process, thereby effectively meeting the user's drainage needs.