Andritz MC - User Manual

Questions and Answers

S
Steven YangAug 4, 2025
Why is my Andritz MC not pumping medium?
- T
  Tammy DiazAug 4, 2025
  If your Andritz Water Pump isn't pumping medium, several issues could be the cause. First, ensure the filling level in the stand pipe is adequate; if it's too low, correct it by increasing the level. Next, inspect the suction pipe, suction valve, and impeller for any clogs. Also, verify that the pump speed meets the required specifications. Check if the flow resistance in the pipe exceeds the pump's delivery head. Ensure the delivery-side valve is open and that the feed to the stand pipe is unobstructed. Finally, flush out both the delivery and stand pipes to clear any blockages.
J
jimenezvictorAug 9, 2025
What to do if Andritz MC Water Pump has inadequate or irregular flow rate?
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  Julie LarsonAug 10, 2025
  If you're experiencing an inadequate or irregular flow rate with your Andritz Water Pump, there are several potential causes. Check that the level in the stand pipe is sufficient to prevent vortex formation; if low, increase the filling level. Verify the motor's rotation and speed are correct. Also, ensure the consistency of the medium being pumped is as expected by checking the dilution water supply. Flush the delivery and stand pipes to remove any blockages. Make sure the delivery side valve isn't throttled and the flow resistance in the pipe is within the pump's delivery head capacity. Inspect the pump parts for wear, damage, or clogs, replacing parts as necessary. Finally, flush the degassing line to clear any obstructions.
C
Christopher WhiteAug 19, 2025
Why is there a high power loss in my Andritz MC?
- C
  charlesmicheleAug 20, 2025
  High power loss in your Andritz Water Pump may be due to several reasons. First, check the motor speed to ensure it is not too high. Verify the motor's rotation direction is correct. Also, ensure that the flow resistance in the pipe does not exceed the pump's delivery head, and correct the valve setting. Check the dilution water supply to maintain the correct consistency of the medium being pumped. If the pump shaft is bent or running off-center, replace the pump shaft and bearing. Disassemble and inspect the inside of the pump for any rotating objects or pump parts causing friction. Lastly, inspect the pump parts for wear, damage, or clogs, replacing parts as necessary.
J
Jonathan GibsonAug 25, 2025
What to do if Andritz Water Pump is overheating or jamming?
- M
  Megan YatesAug 25, 2025
  If your Andritz Water Pump is overheating or jamming, start by ensuring the delivery-side valve is open. Check that the pump flow rate is not below the minimum permitted level, which can cause cavitation. Verify the pump and motor are in true alignment. If the bearing is worn or loose, disassemble the pump and replace the bearings. Replace any broken or off-center pump shafts. Disassemble the pump and replace any damaged or unbalanced impellers. Inspect the inside of the pump for rotating objects or pump parts causing friction. Finally, check and minimize the pipe resistance.
A
Anthony WilsonAug 29, 2025
How to prevent excessive wear on bearing of Andritz MC Water Pump?
- S
  Shawna SchaeferAug 29, 2025
  Excessive wear on the bearing of your Andritz Water Pump can be attributed to several factors. Ensure the pump and motor are properly aligned. If the pump shaft is broken or running off-center, replace the pump shaft and bearing. Inspect the inside of the pump for rotating objects or pump parts causing friction. Replace any damaged or unbalanced impellers. Verify that the pump has appropriate lubrication. If the bearing is not installed properly or is dirty, replace the bearing assembly and check the lubricating system for contamination.
R
Richard StoutNov 13, 2025
How to reduce excessive noise and/or vibration in Andritz MC Water Pump?
- H
  Hayden TaylorNov 13, 2025
  Excessive noise and vibration in your Andritz Water Pump can stem from several factors. Begin by checking the pumping medium for unexpected air or gas content. Correct the level in the stand pipe to prevent vortex formation. Inspect the centrifugal pump for any clogging. Ensure that the flow resistance in the pipework is not greater than the delivery head. Verify the pump flow rate meets the minimum level requirements. If the foundation isn't suitable, new foundations should be made. Check and reinforce the support for the pipework and stand pipe if needed. Ensure the pump and motor are properly aligned. Replace any broken or off-center shafts. Disassemble and inspect the pump for friction or worn parts, replacing parts as necessary. Replace worn or loose bearings, and ensure appropriate l...

Summary

Introduction to the Medium-Consistency Pump

Use and Manual Structure

Purpose of the manual, target audience, and guidance on how to effectively use the document's structure.

Warranty and Manufacturer Details

Details Andritz AG's warranty terms, liability conditions, and provides manufacturer contact information.

Safety Information for the Medium-Consistency Pump

General Safety Regulations

Fundamental safety rules for machine operation and maintenance, emphasizing hazard avoidance.

Danger and Warning Signs

Explanation of pictograms and symbols used to indicate risks to life, limb, and property.

Users Obligations

Defines the responsibilities of the user regarding designated use, personnel training, and adherence to safety instructions.

Safety Devices

Ensures operation with effective safety equipment, which must be kept clear and functional.

Electrical Equipment Safety

Specifies safety requirements for electrical equipment, earthing, and emergency shutdown procedures.

Work in Enclosed Vessels

Details procedures and safety measures for working in enclosed or confined spaces, including permits and ventilation.

Description of the Medium-Consistency Pump

Field of Application

Describes the intended industrial use of the medium-consistency pump in pulp and paper processes.

Main Components and Centrifugal Pump

Illustrates key pump components and provides a detailed breakdown of the centrifugal pump's structure.

Type Specification

Explains the pump's model designation system, applicable standards, and technical data interpretation.

Erection Work and Transport Procedures

Safety Regulations for Erection

Mandates safety compliance during transport, erection, and unloading, including PPE and load handling.

Haulage and Storage

Guidelines for safe transport, acceptance checks, and proper storage conditions to prevent damage.

Erection Work Procedures

Details the sequence plan for installation, including foundation work, pipework, and required documentation.

Mounting the Pump Unit

Step-by-step process for mounting the pump on the foundation, including securing and alignment.

Start-Up Procedures for the Pump

Start-Up Safety and Prerequisites

Covers safety regulations and essential checks required before initiating the pump's start-up sequence.

Start-Up Procedure

Step-by-step guide for pump start-up, including checks for sealing water, pressure, interlocks, and bearing temperature.

Operation of the Medium-Consistency Pump

Operation Safety and Control

Emphasizes safety rules for operation and explains control via the Distributed Control System (DCS).

Starting and Normal Operation

Details manual/automatic starting procedures and activities for normal operation, including data recording.

Pump Specification and Troubleshooting

Covers pump sizing, flow rate changes, operating parameters, and guidance for troubleshooting common malfunctions.

Maintenance of the Medium-Consistency Pump

Maintenance Safety and Schedule

Outlines safety regulations for maintenance, regular checks, and a schedule for monthly, 6-monthly, and annual tasks.

Lubrication and Coupling Alignment

Details oil lubrication requirements, brands, quantities, oil change intervals, and coupling alignment procedures.

Centrifugal Pump Component Maintenance

Procedures for removing/installing the centrifugal pump, its components, and changing bearings and front lining.

Changing Anti-Friction Bearings

Step-by-step guide for replacing anti-friction bearings, including disassembly, cleaning, and reassembly.

Balancing the Impeller

Instructions for cleaning, securing fillers, and performing dynamic and static balancing of the pump shaft and impeller.

Technical Data for the Pump

Data Sheet and Characteristic Curve

References for accessing detailed data sheets and performance characteristic curves for the pump.

Supplier Documentation and Components

Ball Valves and Sealing Water Monitoring

Supplier information for ball valves, proximity switches, and sealing water monitoring units (flow meters).

Pump Parts and Couplings

Supplier details for mechanical seals and couplings, including material combinations and types.

Measuring Probes and Transmitters

Supplier information for measuring probes, control valves, and differential pressure transmitters.

Andritz MC Specifications

General

Brand	Andritz
Model	MC
Category	Water Pump
Language	English

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