Alfa Laval LKHex-15 Instruction Manual
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Alfa Laval LKHex-15 Instruction Manual

Lkhex series/ centrifugal pump
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Instruction Manual
LKHex Centrifugal Pump
ESE02224-EN8
Original manual
2015-01
3001-0002
5520 53rd Street SE
Calgary, AB T2C 4P2
PH: 403.720.0999

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  • Page 1 5520 53rd Street SE Calgary, AB T2C 4P2 PH: 403.720.0999 Instruction Manual LKHex Centrifugal Pump 3001-0002 ESE02224-EN8 2015-01 Original manual...
  • Page 2 PH: 403.720.0999...
  • Page 3 Table of contents The information herein is correct at the time of issue but may be subject to change without prior notice 1. EC Declaration of Conformity ............... 2. Safety ....................2.1. Important information ................2.2. Warning signs ..................2.3. Safety precautions ................3.

  • Page 4: Ec Declaration Of Conformity

    Phone No. Production year hereby declare that Pump Designation LKHex-10, LKHex-15, LKHex-20, LKHex-25, LKHex-35, LKHex-40, LKHex-45, LKHex-50, LKHex-60, LKHex-70 Type From serial number 10.000 to 1.000.000 is in conformity with the requirements of the following EC Directives: - ATEX Directive 94/9/EC...

  • Page 5: Safety

    2 Safety Unsafe practices and other important information are emphasised in this manual. Warnings are emphasised by means of special signs. Always read the manual before using the pump! 2.1 Important information WARNING Indicates that special procedures must be followed to avoid serious personal injury. CAUTION Indicates that special procedures must be followed to avoid damage to the pump.
  • Page 6 Unsafe practices and other important information are emphasised in this manual. Warnings are emphasised by means of special signs. Always read the manual before using the pump! Name plate example: Manufacturer Alfa Laval, Albuen 31, Kolding, DK-6000 Pump Type LKHex-20 Serial No. 003521...

  • Page 7: Safety Precautions

    Always handle lye and acid with great care. Never use the pump for products not mentioned in the Alfa Laval pump selection program. The Alfa Laval pump selection program can be acquired from your local Alfa Laval sales company. PH: 403.720.0999...
  • Page 8 Always read the technical data thoroughly. (See chapter 6 Technical data) Never service the pump when it is hot. Never service the pump if pressurised. Always use Alfa Laval genuine spare parts. Motors with grease nipples: Remember lubrication according to the information plate/label on the motor.

  • Page 9: Installation

    3. Motor instructions. 4. Test certificate, IF ORDERED! CAUTION Alfa Laval cannot be held responsible for incorrect unpacking. WARNING: Be aware that certain pump configurations can tilt, and therefore cause injuries to feet or fingers. The pump should be supported underneath the adaptor when not installed in the process line.

  • Page 10: Installation

    Read the instructions carefully and pay special attention to the warnings! Always check the pump before operation. - See pre-use check in section 3.3 Pre-use check - pump without impeller screw. The large pump sizes are very heavy. Alfa Laval therefore recommends the use of a lifting crane when handling the pump. 3.2 Installation Step 1 Always read the technical data thoroughly.
  • Page 11 Read the instructions carefully and pay special attention to the warnings! Always check the pump before operation. - See pre-use check in section 3.3 Pre-use check - pump without impeller screw. The large pump sizes are very heavy. Alfa Laval therefore recommends the use of a lifting crane when handling the pump. Step 4 Remember seal rings! 1.

  • Page 12: Pre-Use Check - Pump Without Impeller Screw

    3 Installation Read the instructions carefully and pay special attention to the warnings! LKHex-10 to -60 is without impeller screw as standard but can be supplied with one. Check the direction of rotation of the impeller before operation. - See the indication label on the pump. 3.3 Pre-use check - pump without impeller screw Step 1 Always remove the impeller before checking the direction of...

  • Page 13: Pre-Use Check With Impeller Screw

    3 Installation Read the instructions carefully and pay special attention to the warnings! LKHex-10 to -60 is without impeller screw as standard but can be supplied with one. Check the direction of rotation of the impeller before operation. - See the indication label on the pump. 3.4 Pre-use check with impeller screw Never start in the wrong direction of rotation with liquid in the pump.

  • Page 14: Recycling Information

    - At the end of use, the equipment must be recycled according to relevant local regulations. Besides the equipment itself, any hazardous residues from the process liquid must be taken into consideration 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. PH: 403.720.0999...

  • Page 15: Operation

    4 Operation Read the instructions carefully and pay special attention to the warnings! 4.1 Important check and monitoring during operation Continuous monitoring Shaft seal - DMS (double mechanical shaft seal) The flow rate, temperature and pressure of the buffer/barrier fluid must be within the specifications given in chapter 4.2 Operating parameters.

  • Page 16: Operating Parameters

    4 Operation Read the instructions carefully and pay special attention to the warnings! 4.2 Operating parameters General: Maximum ambient temperature: -10°C to +30°C Maximum pump speed: 3600 rpm Only Exd and Exde motors are designed to run with a variable speed drive. Pump unit: Maximum inlet pressure LKHex-10-60, 50/60 Hz...

  • Page 17: Operation/Control

    4.3 Operation/Control Step 1 Always read the technical data thoroughly. See chapter 6 Technical data CAUTION Alfa Laval cannot be held responsible for incorrect operation/control. Step 2 Danger of burns! Never touch the pump or the pipelines when pumping hot liquids or when sterilising.
  • Page 18 4 Operation Read the instructions carefully and pay special attention to the warnings! Step 4 Do not allow to CAUTION The shaft seal must not run dry. run dry CAUTION Never throttle the inlet side. Pump casing must be completely filled before operation. 3001-0016 Step 5 Double mechanical shaft seal:...

  • Page 19: Trouble Shooting

    4 Operation Pay attention to possible faults. Read the instructions carefully. 4.4 Trouble shooting NOTE! Read the maintenance instructions carefully before replacing worn parts. Remedy Problem Cause/result Overloaded motor - Pumping of viscous liquids - Larger motor or smaller impeller - Pumping of high density liquids - Low outlet pressure (counter pressure) - Higher counter pressure (throttling) - Lamination of precipitates from the...

  • Page 20: Recommended Cleaning

    4 Operation The pump is designed for cleaning in place (CIP). CIP = Cleaning In Place. Read the instructions carefully and pay special attention to the warnings! NaOH = Caustic soda. = Nitric acid. 4.5 Recommended cleaning Step 1 Caustic danger! Always handle lye and acid with great care.

  • Page 21: Maintenance

    Always refer to the pump serial no. on the name plate when ordering spare parts and service kits to ensure correct spares. Ordering spare parts Contact your local Alfa Laval sales company. Note: If the pump is supplied with FEP O-rings, Alfa Laval recommends that the casing O-ring is replaced during pump maintenance. PH: 403.720.0999...
  • Page 22 5 Maintenance Maintain the pump with care. Read the instructions carefully and pay special attention to the warnings! Always keep spare shaft seals and rubber seals in stock. See separate motor instructions. Check the pump for smooth operation after service. Shaft seal Rubber seals Motor bearings...

  • Page 23: Dismantling Of Pump/Shaft Seals

    5 Maintenance Read the instructions carefully. The items refer to the parts list and service kits section. Handle scrap correctly. : Relates to the shaft seal. 5.2 Dismantling of pump/shaft seals Step 1 1. LKHex-10 to -70: Unscrew cap nuts (24) and remove washers (24a) and pump casing (29).
  • Page 24 5 Maintenance Read the instructions carefully. The items refer to the parts list and service kits section. Handle scrap correctly. : Relates to the shaft seal. Step 5 1. Pull off the O-ring (26) from back plate (25). 2. Unscrew nuts (20) and remove washers (21) and the back plate. 3001-0024 Step 6 1.

  • Page 25: Assembly Of Pump/Single Shaft Seal

    5 Maintenance Read the instructions carefully. The items refer to the parts list and service kits section. Handle scrap correctly. : Relates to the shaft seal. 5.3 Assembly of pump/single shaft seal Step 1 1. Remove spring (13). NOTE! Make sure that O-ring (15) has maximum clearance from the sealing surface.
  • Page 26 5 Maintenance Read the instructions carefully. The items refer to the parts list and service kits section. Handle scrap correctly. : Relates to the shaft seal. Step 5 1. Clean the sealing surfaces with contact cleaner before fitting back plate (25). 2.

  • Page 27: Assembly Of Pump/Double Mechanical Shaft Seal

    5 Maintenance Read the instructions carefully. The items refer to the parts list and service kits section. Lubricate the rubber seals before fitting them. : Relates to the shaft seal. 5.4 Assembly of pump/double mechanical shaft seal Step 1 1. Fit O-rings (15) in rotating seal rings (14). 2.
  • Page 28 5 Maintenance Read the instructions carefully. The items refer to the parts list and service kits section. Lubricate the rubber seals before fitting them. : Relates to the shaft seal. Step 6 Lubricate O-ring (26) and slide it onto back plate (25). 3001-0035 Step 7 1.

  • Page 29: Adjustment Of Shaft (Lkhex-10 To -70)

    5 Maintenance Read the instructions carefully. The items refer to the parts list and service kits section. Lubricate the rubber seals before fitting them. : Relates to the shaft seal. 5.5 Adjustment of shaft (LKHex-10 to -70) Step 1 1. Loosen screws (6). 2.
  • Page 30 5 Maintenance Read the instructions carefully. The items refer to the parts list and service kits section. Lubricate the rubber seals before fitting them. : Relates to the shaft seal. Step 6 Counterhold with a 1. Remove impeller (27), back plate (25) and drive ring (52). screwdriver 2.

  • Page 31: Technical Data

    The LKH pump is available in the following sizes LKHex -10, -15, -20, -25, -35, -40, -45, -50, -60 and -70. The instruction manual is part of the delivery. Study the instructions carefully. The large pump sizes are very heavy. Alfa Laval therefore recommends the use of a lifting crane when handling the pump. Materials...

  • Page 32: Technical Information And Description Of Mechanical Shaft Seals

    6 Technical data It is important to observe the technical data during installation, operation and maintenance. Inform personnel about the technical data. 6.2 Technical information and description of mechanical shaft seals General considerations regarding mechanical shaft seals All mechanical shaft seals are dependent upon sufficient lubrication and cooling of the sealing surfaces. Otherwise increased temperature will occur.

  • Page 33: Torque Specifications

    6 Technical data It is important to observe the technical data during installation, operation and maintenance. Inform personnel about the technical data. 6.3 Torque specifications The table below specifies the tightening torques for the screws, bolts and nuts in this pump. Always use the following torques if no other values are stated.

  • Page 34: Noise Emission

    6 Technical data It is important to observe the technical data during installation, operation and maintenance. Inform personnel about the technical data. 6.5 Noise emission Pump type Sound pressure level (dBA) LKHex-10 LKHex-15 LKHex-20 LKHex-25 LKHex-35 LKHex-40 LKHex-45 LKHex-50 LKHex-60 LKHex-70 The above LKH noise levels are the same for LKHPF, LKHI, LKH UltraPure, LKH Evap and LKHex.

  • Page 35: Relubrication Intervals

    6 Technical data It is important to observe the technical data during installation, operation and maintenance. Inform personnel about the technical data. 6.6 Relubrication intervals The table is for an internal bearing temperature of 100°C. An increase in temperature of 15°C (ambient or internal in bearings), will reduce the greasing interval and bearing lifetime by 50%.

  • Page 36: Parts List

    7 Parts list The drawing shows the LKHex, sanitary version. Always use Alfa Laval genuine spare parts. Always refer to the pump serial no. on the name plate when ordering spare parts to ensure correct spares. 7.1 Drawing LKHex-10, -15, -20, -25, -35, -40, -45, -50, -60, -70 sanitary version...
  • Page 37 PH: 403.720.0999...

  • Page 38: Lkhex - Wet End (Lkh-10 -70)

    7 Parts list The drawing shows the LKHex, sanitary version. Always use Alfa Laval genuine spare parts. Always refer to the pump serial no. on the name plate when ordering spare parts to ensure correct spares. 7.2 LKHex - Wet end (LKH-10 -70)
  • Page 39 7 Parts list The drawing shows the LKHex, sanitary version. Always use Alfa Laval genuine spare parts. Always refer to the pump serial no. on the name plate when ordering spare parts to ensure correct spares. Parts list Pos. Denomination...

  • Page 40: Lkhex - Motor Dependent Parts (Lkh-10 - 70)

    7 Parts list The drawing shows the LKHex, sanitary version. Always use Alfa Laval genuine spare parts. Always refer to the pump serial no. on the name plate when ordering spare parts to ensure correct spares. 7.3 LKHex - Motor dependent parts (LKH-10 - 70)
  • Page 41 7 Parts list The drawing shows the LKHex, sanitary version. Always use Alfa Laval genuine spare parts. Always refer to the pump serial no. on the name plate when ordering spare parts to ensure correct spares. Parts list Pos. Denomination Shaft incl.

  • Page 42: Lkhex - Shaft Seal

    7 Parts list The drawing shows the LKHex, sanitary version. Always use Alfa Laval genuine spare parts. Always refer to the pump serial no. on the name plate when ordering spare parts to ensure correct spares. 7.4 LKHex - Shaft seal...
  • Page 43 7 Parts list The drawing shows the LKHex, sanitary version. Always use Alfa Laval genuine spare parts. Always refer to the pump serial no. on the name plate when ordering spare parts to ensure correct spares. Parts list Pos. Denomination ...
  • Page 44 7 Parts list The drawing shows the LKHex, sanitary version. Always use Alfa Laval genuine spare parts. Always refer to the pump serial no. on the name plate when ordering spare parts to ensure correct spares. Denomination EPDM Service kit for double mechanical shaft seal SiC/SiC ...
  • Page 45 PH: 403.720.0999...
  • Page 46 © 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.

This manual is also suitable for:

Lkhex-10Lkhex-40Lkhex-45Lkhex-50Lkhex-60Lkhex-70 ... Show all

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