Alfa Laval MR-300 Instruction Manual
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Alfa Laval MR-300 Instruction Manual

Liquid-ring pump
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Instruction Manual
MR-300 Liquid-Ring Pump
ESE02051-EN6
Original manual
2022-10

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Summary of Contents for Alfa Laval MR-300

  • Page 1 Instruction Manual MR-300 Liquid-Ring Pump ESE02051-EN6 2022-10 Original manual...

  • Page 3: Table Of Contents

    Table of contents The information herein is correct at the time of issue but may be subject to change without prior notice 1. Declarations of Conformity ..............2. Safety ..................2.1. Important information ................2.2. Warning signs ..................2.3. Safety precautions ................3.

  • Page 4: Declarations Of Conformity

    EU Declaration Declaration of of of Conformity Conformity Declaration Conformity The Designated Company Alfa Laval Kolding A/S, Albuen 31, DK-6000 Kolding, Denmark, +45 79 32 22 00 Company name, address and phone number Hereby declare that Pump Designation MR-300 Type Serial number from 10.000 to 1.000.000...
  • Page 5 UK Declaration Declaration Declaration of of of Conformity Conformity Conformity The Designated Company Alfa Laval Kolding A/S, Albuen 31, DK-6000 Kolding, Denmark, +45 79 32 22 00 Company name, address and phone number Hereby declare that Pump Designation MR-300 Type Serial number from 10.000 to 1.000.000...

  • Page 6: Safety

    2 Safety Unsafe practices and other important information are emphasised in this manual. Warnings are emphasised by means of special signs. All warnings in the manual are summarised on this page. Pay special attention to the instructions below so that severe personal injury or damage to the pump are avoided. 2.1 Important information Always Always...

  • Page 7: Safety Precautions

    Always Always Never Never use the pump for products not mentioned in the Alfa Laval pump selection program. Never The Alfa Laval pump selection program can be acquired from your local Alfa Laval sales company. Maintenance: Maintenance: Maintenance: Always Always read the technical data thoroughly. (See chapter 6 Technical data) Always Never service the pump when it is hot.

  • Page 8: Installation

    3 Installation 3.1 Unpacking/delivery Step Step Step 1 1 1 CAUTION CAUTION CAUTION Alfa Laval cannot be held responsible for incorrect unpacking. Inspect the pump for visible transport damage. Check Check Check the the delivery delivery delivery for: for: for: 1.

  • Page 9: Installation/Pre-Use Check

    CAUTION CAUTION CAUTION must be red and yellow. Alfa Laval cannot be held responsible for incorrect installation. CAUTION CAUTION CAUTION The pump does not prevent back flow when intentionally or unintentionally stopped. If back flow...
  • Page 10 3 Installation Read the instructions carefully and pay special attention to the warnings! The direction of rotation of the impeller can be checked by observing the direction of rotation of the motor fan. - See the indication label on the pump. Step Step Step 6 6 6...

  • Page 11: Recycling Information

    - At the end of use, the equipment shall be recycled according to the relevant, local regulations. Besides the equipment itself, any hazardous residues from the process liquid must be considered and dealt with in a proper manner. When in doubt, or in the absence of local regulations, please contact your local Alfa Laval sales company.

  • Page 12: Operation

    Study the instructions carefully and pay special attention to the warnings! 4.1 Operation/control Step 1 1 1 Step Step CAUTION CAUTION CAUTION Alfa Laval cannot be held responsible for incorrect operation/control. Always Always Always read the technical data carefully. Step Step Step 2 2 2...

  • Page 13: Trouble Shooting

    4 Operation Pay attention to possible faults. Study the instructions carefully. 4.2 Trouble shooting NOTE! NOTE! NOTE! Study the maintenance instructions carefully before replacing worn parts. Pr Pr Problem oblem Remedy Remedy Remedy oblem Cause/r Cause/r esult Cause/r esult esult Overload motor - Pumping of viscous liquid - 18.5 kW motor if 15 kW is fitted...

  • Page 14: Recommended Cleaning

    4 Operation The pump is designed for cleaning in place (CIP). CIP = Cleaning In Place. Study the instructions carefully and pay special attention to the warnings! NaOH = Caustic Soda. = Nitric acid. 4.3 Recommended cleaning Step 1 1 1 Step Step Caustic...

  • Page 15: Maintenance

    Or Or Ordering dering dering spar spar spare e e parts parts parts Contact your local Alfa Laval sales company. Recommended spar spare e e parts: parts: Recommended Recommended spar parts: Order Service kits from the Service kits list (see chapter 7 Parts list and service kits).
  • Page 16 5 Maintenance Maintain the pump carefully. Study the instructions carefully and pay special attention to the warnings! Always keep spare shaft seals and rubber seals in stock. See separate motor instructions. Rubber seals seals Motor Motor Motor bearings bearings bearings Shaft Shaft seals Shaft...

  • Page 17: Dismantling Of Pump/Removing The Shaft Seal (1-4*)

    5 Maintenance Study the instructions carefully. The items refer to the parts list and service kits section. Handle scrap correctly. 5.2 Dismantling of pump/removing the shaft seal (1-4*) Step Step Step 1 1 1 � Remove cap nuts (14), washers (15a) and casing cover (10a) Step 2 2 2 Step Step...

  • Page 18: Assembly Of Pump/Fitting Of Shaft Seal (5-8*)

    5 Maintenance Study the instructions carefully. The items refer to the parts list and service kits section. Lubricate the rubber seals before fitting them. 5.3 Assembly of pump/fitting of shaft seal (5-8*) Step Step Step 1 1 1 NOTE! The impeller position may have to be adjusted if: - The motor has been replaced.

  • Page 19: Adjustment Of Impeller Position

    5 Maintenance Study the instructions carefully. The items refer to the parts list and service kits section. 5.4 Adjustment of impeller position Step Step Step 1 1 1 NOTE! - Adjust the impeller position with only only only the pump casing, the thrower and the impeller fitted on the motor.

  • Page 20: Technical Data

    6 Technical data It is important to observe the technical data during installation, operation and maintenance. Inform personnel about the technical data. 6.1 Technical data MR is a liquid-ring pump specially designed for pumping liquids containing air or gas. The pump is for use in food, chemical, pharmaceutical and similar industries.

  • Page 21: Torque Specifications

    6 Technical data It is important to observe the technical data during installation, operation and maintenance. Inform personnel about the technical data. 6.2 Torque specifications The table below specifies the tightening torques for the screws, bolts and nuts in this pump. Always use the torques specified below if no other values are stated.

  • Page 22: Noise Emission

    SolidC-4 MR-166 MR-185 MR-200 MR-300 FM-OS The above LKH noise levels are the same for LKHPF, LKHI, LKH UltraPure, LKH Evap and LKHex. The above SolidC noise levels are the same for SolidC UltraPure. The noise measurements have been carried out with the original motor and shroud, at the approximate Best Efficiency Point (BEP) with water at ambient temperature and at 50 Hz.

  • Page 23: Parts List And Service Kits

    7 Parts list and service kits It is important to observe the technical data during installation, operation and maintenance. Inform personnel about the technical data. 7.1 Drawings...

  • Page 24: Mr - Wet End

    7 Parts list and service kits It is important to observe the technical data during installation, operation and maintenance. Inform personnel about the technical data. 7.2 MR - Wet end...
  • Page 25 7 Parts list and service kits It is important to observe the technical data during installation, operation and maintenance. Inform personnel about the technical data. Parts Parts Parts list list list Pos. Denomination ISO male ISO clamp O-ring, EPDM (Standard) �∆...

  • Page 26: Mr - Motor Dependent Parts

    7 Parts list and service kits It is important to observe the technical data during installation, operation and maintenance. Inform personnel about the technical data. 7.3 MR - Motor dependent parts...
  • Page 27 7 Parts list and service kits It is important to observe the technical data during installation, operation and maintenance. Inform personnel about the technical data. Parts Parts Parts list list list Pos. Denomination Motor ABB Bracket Bracket cover Shaft Screw Compression ring Compression ring Screw...

  • Page 28: Mr - Shaft Seal

    7 Parts list and service kits It is important to observe the technical data during installation, operation and maintenance. Inform personnel about the technical data. 7.4 MR - Shaft seal...
  • Page 29 7 Parts list and service kits It is important to observe the technical data during installation, operation and maintenance. Inform personnel about the technical data. Parts Parts Parts list list list Pos. Denomination Spanner for stationary seal ring Key for hexagonal socket Impeller tool Shaft seal tool Shaft seal...
  • Page 30 © Alfa Laval Corporate AB This document and its contents is owned by Alfa Laval Corporate AB and protected by laws governing intellectual property and thereto related rights. It is the responsibility of the user of this document to comply with all applicable intellectual property laws. Without limiting any rights related to this document, no part of this document may be copied, reproduced or transmitted in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), or for any purpose, without the expressed permission of Alfa Laval Corporate AB.

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