Xylem FLYGT 2640.181 - User Manual

Questions and Answers

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Michael TranAug 5, 2025
What to do if my Xylem FLYGT 2640.181 motor protection trips?
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  Rebecca HunterAug 5, 2025
  If your Xylem Water Pump runs, but the motor protection trips, first ensure the motor protection is appropriately set according to the data plate and cable chart, if applicable. If the impeller is hard to rotate, clean the impeller and the sump, and verify the impeller is correctly trimmed. Check the fuses and replace any that have tripped. If fuses are intact, a certified electrician should be notified.
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Leah AndersonAug 11, 2025
Why is my Xylem FLYGT 2640.181 Water Pump delivering too little or no water?
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  Jerry ThomasAug 11, 2025
  If your Xylem Water Pump delivers too little or no water, check if the impeller rotates in the wrong direction (transpose two phase leads for 3-phase pumps). Ensure all valves are correctly positioned, reset valves if needed, and replace if necessary, ensuring correct installation according to media flow and proper opening. If the impeller is hard to rotate, clean it and the sump, and verify it's correctly trimmed. Clear any obstructions in the pipes, seal any leaks, and replace worn parts on the impeller, pump, or casing. Lastly, check the liquid level and level sensor setting; consider adding a foot valve for priming, depending on the installation.
C
Christopher KingAug 17, 2025
How to troubleshoot a Xylem FLYGT 2640.181 Water Pump that does not start?
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  Steven JohnsonAug 17, 2025
  If the Xylem Water Pump does not start, it might be due to an alarm signal triggered on the control panel. To resolve this, verify that the impeller rotates freely, the sensor indicators do not show an alarm, and the overload protection hasn't tripped. If the pump starts manually but not automatically, check the start level regulator for proper function, cleaning or replacing it if needed. Also, ensure all connections are intact, relay and contactor coils are undamaged, and the control switch (Man/Auto) makes contact in both positions. Inspect the control circuit and functions.
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Matthew AguilarAug 23, 2025
What to do if my Xylem FLYGT 2640.181 starts and stops repeatedly?
- S
  Samantha WhiteAug 23, 2025
  If your Xylem Water Pump starts and stops rapidly, it could be due to back-flow filling the sump to the start level again, or the self-holding function of the contactor malfunctioning. Ensure sufficient distance between the start and stop levels and that the non-return valves are working correctly. Also, make sure the discharge pipe between the pump and the first non-return valve is short enough. Check the contactor connections, the control circuit voltage relative to the coil's rated voltage, and the stop-level regulator's function. Determine if the voltage drop during the starting surge causes the contactor's self-holding malfunction.
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Ashley GordonAug 28, 2025
Why doesn't my Xylem FLYGT 2640.181 stop when using a level sensor?
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  Javier ShortAug 29, 2025
  If your Xylem Water Pump doesn't stop when a level sensor is used, it could be because the pump can't empty the sump to the stop level, there's a malfunction in the level-sensing equipment, or the stop level is set too low. Check for leaks in the piping and discharge connection, ensure the impeller isn't clogged, and verify the non-return valves function properly. Confirm the pump has adequate capacity. Clean the level regulators, check their functioning, and inspect the contactor and control circuit, replacing any defective items. If the stop level is too low, raise it.

Summary

Introduction and Safety

Safety Terminology and Symbols

Defines safety terms and symbols used throughout the manual for hazard communication.

User Safety and Special Hazards

Covers user safety practices and specific risks like electrical, biological, and environmental hazards.

Environmental Protection and Disposal

Procedures for protecting the environment and proper end-of-life product disposal.

Spare Parts and Warranty Information

Provides guidance on using genuine spare parts and warranty terms.

Product Description

Product Overview and Intended Use

Describes the pump's design, included items, and its intended applications.

Data Plate and Product Identification

Explains the data plate details and product denomination codes for specifications.

Installation Procedures

Hazardous Atmosphere Installation

Safety guidelines for installing pumps in environments with explosion or fire hazards.

Electrical Connection and Wiring

Detailed steps for making electrical connections, including precautions, grounding, and cable preparation.

Impeller Rotation Check

Procedure to verify correct impeller rotation direction after installation or maintenance.

Maintenance and Service

Maintenance Safety Precautions

Essential safety measures to be followed before commencing any maintenance work on the pump.

Fault Tracing and Component Checks

Guides for diagnosing issues in drive, stator, and wet end, including specific tests.

Pump Disassembly Steps

Step-by-step instructions for disassembling the pump, including specific steps for removing various components.

Pump Assembly Procedures

Detailed sequence for reassembling the pump, from stator to discharge connection.

Scheduled Service and Overhaul

Guidelines for regular inspection and periodic overhaul to ensure long-term performance.

Troubleshooting Guide

Electrical Troubleshooting

Procedures for diagnosing and resolving issues related to the pump's electrical systems.

Pump Operation Problems

Solutions for common issues like non-starting, erratic operation, or low flow.

Technical Reference

Application Limits and Motor Data

Specifies operational boundaries, motor types, electrical data, and performance characteristics.

Dimensions, Weights, and Tools

Provides physical dimensions, weight information, and a list of required special tools for service.

Winding Data

Details the resistance values per phase for standard version stators.

Xylem FLYGT 2640.181 Specifications

General

Max Head	35 m
Impeller Type	Semi-open
Weight	61 kg
Frequency	50 Hz
Speed	2900 rpm
Material	Cast iron
Model	FLYGT 2640.181
Type	Submersible Pump
Voltage	400 V
Discharge	80 mm