Sulzer XFP 305J-CB2 - User Manual

Questions and Answers

K
Kimberly GuzmanAug 5, 2025
Why is my Sulzer Water Pump making excessive noise or vibration?
- B
  Brian AdamsAug 6, 2025
  Excessive noise or vibration in your Sulzer Water Pump can stem from several causes. It could be due to a defective bearing, which would require bearing replacement. Another cause might be a clogged impeller; in this case, you should remove and clean the hydraulics. Also, check for the wrong direction of rotation and change it by interchanging two phases of the power supply cable.
K
kevinmcconnellAug 9, 2025
What to do if my Sulzer Water Pump has low head or flow?
- G
  Gregory Steele MDAug 9, 2025
  If your Sulzer Water Pump exhibits low head or flow, there are a few things to investigate. First, check for the correct direction of rotation and change it by interchanging two phases of the power supply cable if needed. Also, the gap between the impeller and bottom plate might be too wide, reduce the gap. Finally, ensure the gate valve is fully open; a partially open valve can restrict flow.
W
woodlisaAug 14, 2025
Why does my Sulzer Water Pump switch on and off intermittently?
- C
  Christopher BrownAug 14, 2025
  Intermittent switching of your Sulzer Water Pump can be attributed to a few reasons. If it's due to a temperature sensor shutdown, the motor will restart automatically once the pump cools down. Also, check the thermal relay settings in the control panel. Impeller blockage can also cause this issue, so inspect for that. If none of these resolve the problem, a service inspection is required.
T
Tamara RothAug 18, 2025
What to do if the impeller is jammed in my Sulzer Water Pump?
- J
  Joshua AustinAug 18, 2025
  If the impeller of your Sulzer Water Pump is jammed, you should inspect and remove any object causing the jam. Additionally, check the gap between the impeller and the bottom plate, adjusting it if necessary.
A
Andrea DavisAug 23, 2025
What to do if the gate valve is closed or the non-return valve is blocked in my Sulzer Water Pump?
- A
  Aaron LopezAug 23, 2025
  If you find that the gate valve of your Sulzer Water Pump is closed or the non-return valve is blocked, open the gate valve and clean any blockage from the non-return valve.
B
bushrobertAug 27, 2025
What to do if there is level control override in my Sulzer Water Pump?
- S
  smithpaulAug 27, 2025
  If there is a level control override in your Sulzer Water Pump, check for a float switch that is faulty or tangled and held in the OFF position in the sump.
M
Misty GrayAug 31, 2025
How to remove air lock in volute of Sulzer Water Pump?
- M
  Michael MaldonadoAug 31, 2025
  To remove an air lock in the volute of your Sulzer Water Pump, shake or raise and lower the pump repeatedly until resulting air bubbles no longer appear at surface level.

Summary

Safety

Personal Protective Equipment

Specifies required personal protective equipment for safe operation and maintenance of pumps.

Use of Motors in Ex Zones

Explosion-Proof Approvals

Details the explosion-proof certifications and standards (ATEX, FM, CSA) for the motors.

General Information

Provides general guidance for operating pumps in hazardous areas, including hydraulic section filling.

Special Conditions for Safe Use

Outlines specific conditions required for safe operation, particularly for repairs on flameproof joints.

Operation with Frequency Inverters in Hazardous Areas

Guidelines for using frequency inverters with Ex pumps in hazardous zones (ATEX Zone 1 and 2).

Operation in Wet-Well without Cooling Jacket

Specific instructions for Ex pumps in wet-well installations, emphasizing full submersion.

Mounting and Installation

Equipotential Bonding

Requirements for equipotential bonding in pump installations according to safety standards.

Installation Types

Electrical Connection

Seal Monitoring

Details the seal leakage sensor (DI) and its integration for monitoring water ingress.

Temperature Monitoring

Explains the motor thermal sensors (bimetal/PTC) for protecting the motor from overheating.

Operation with Frequency Inverters

Wiring Diagrams

Commissioning

Checking Direction of Rotation

Procedures for checking and verifying the correct pump rotation direction.

Changing Direction of Rotation

Instructions for altering the pump's direction of rotation by phase change.

Maintenance and Service

General Maintenance Instructions

Lubricant Changing (PE1 & PE2)

Lubricant Changing (PE3 - without cooling jacket)

Coolant Changing (PE3 - with cooling jacket)

Bottom Plate Adjustment (CB & CP)

Bearings and Mechanical Seals

Changing the Power Cable

Clearing Pump Blockage

Troubleshooting Guide

Sulzer XFP 305J-CB2 Specifications

General

Type	Submersible sewage pump
Maximum liquid temperature	40°C
Motor protection	IP68
Speed	1450 rpm
Operating Temperature	0°C to 40°C
Material	Cast iron
Maximum submersion depth	20 meters
Inlet Diameter	150 mm
Outlet Diameter	DN 100