KSB WK 125 - User Manual

WK
Contents
Point Description Page
No. No.
0 Introduction 1
1 Pump construction 1
1.1 Casing 1
1.2 Rotor 1
1.3 Bearing arrangement 2
1.4 Lubrication 3
1.4.1 Oil lubrication 3
1.4.2 Grease lubrication 4
1.5 Shaft seal 4
1.5.1 Stuffing boxes 4
1.5.1.1 Cooling liquid for stuffing boxes 5
1.5.1.2 Packing the stuffing boxes 5
1.5.1.3 Packing material 7
1.5.2 Mechanical seals 7
1.6 Coupling 7
2 Mode of operation of pump 7
3 Drive 8
4 Transport 8
5 Painting 8
6 Condition of equipment as supplied 8
7 Accessories 9
8 Installing the pumping set 9
8.1 Description of site prior to
commencement of erection 9
8.2 Installation and preliminary levelling up 9
8.3 Aligning the coupling 9
8.4 Grouting in the baseplate 10
8.5 Final alignment 10
9 Piping 11
9.1 Suction lift line and positive
Suction head line 11
9.1.1 Strainers in suction head line/suction lift line 11
9.2 Isolating valves 12
9.3 Non-return valves 12
9.3.1 Automatic recirculation valve 12
9.4 Final coupling check 13
9.5 Measuring instruments 13
10 Commissioning 13
10.1 Preliminary remarks regarding
commissioning 13
10.2 Start-up 13
10.3 Operation and supervision of pump 14
Point Description Page
No. No.
10.4 Shutting the pump down 14
10.5 Preserving the pump 15
10.6 Sending the pump back to our Works 15
11 Dismantling the pump 15
11.1 Preparations prior to dismantling 15
11.2 Dismantling the bearing 15
11.2.1 Dismantling the drive end bearing 15
11.2.2 Dismantling the end side bearing 16
11.2.2.1 Standard bearing construction 16
11.2.2.2 Heavy duty bearing construction 17
11.3 Removing the shaft seal 17
11.3.1 Soft-packed stuffing box construction 17
11.4 Dismantling the pump body 17
11.5 Inspection of individual pump components 19
11.6 Dynamic balancing of pump rotor 20
12 Assembly of pump 20
12.1 Preparations prior reassembly 20
12.2 Assembling the pump body 20
12.3 Assembly of shaft seal 22
12.3.1 Pump construction with soft-packed
stuffing box 22
12.4 Assembly of bearings 23
12.4.1 Assembly of end side bearing 23
12.4.2 Assembly of drive end bearing 23
13 Operating troubles, causes and remedies 25
13.1 Operating troubles 25
13.2 Causes for damage 25
13.3 Suggested remedies 26
14 Spare parts 27
15 Check list 28
15.1 Pre-requisites for initial commissioning 28
15.2 Initial start-up with cold water 28
15.3 Priming the boiler 28
15.4 Initial operation with hot fluid 28
15.5 Supervision of operations & maintenance 28
16 Sectional drawings and list of
components 29
Balancing liquid piping 31

Summary

WK Pump Construction Details

Rotor Assembly

Details the complete rotating assembly, shaft, impellers, and keys.

Bearing Arrangement Options

Lubrication Methods

Shaft Seal Types

Discusses shaft sealing methods using stuffing boxes or mechanical seals.

WK Pump Mode of Operation

Installing the Pumping Set

Installation and Preliminary Levelling

Coupling Alignment Procedure

Procedure for aligning pump and driver coupling halves.

Final Alignment Checks

Final alignment checks and adjustments for the complete pumping set.

Piping and Connections

Suction Lift and Head Line Guidelines

Pump Commissioning Procedure

Initial Pump Start-up

Step-by-step procedure for initial pump start-up.

Pump Operation and Supervision

Guidelines for safe operation and monitoring of the pump.

Pump Shutdown Procedure

Procedure for safely shutting down the pump.

Dismantling the Pump

Preparations for Dismantling

Dismantling the Bearings

Procedures for removing drive end and end side bearings.

Dismantling the Drive End Bearing

Detailed steps for dismantling the drive end bearing.

Dismantling the End Side Bearing

Detailed steps for dismantling the end side bearing.

Removing the Shaft Seal

Steps for removing shaft seals, including stuffing boxes.

Dismantling the Pump Body

Instructions for dismantling the pump casing sections.

Inspection of Pump Components

Dynamic Balancing of Pump Rotor

Assembly of the Pump

Preparations Prior to Reassembly

Assembling the Pump Body

Steps for assembling the pump body, shaft, and impellers.

Assembly of Shaft Seal

Assembly of Soft Packed Stuffing Box

Assembly of Bearings

Assembly of End Side Bearing

Assembly of Drive End Bearing

Operating Troubles, Causes, and Remedies

Operating Troubles and Causes

Lists operating troubles and their potential causes.

Causes of Pump Damage

Suggested Remedies for Troubles

Provides suggested remedies for identified pump troubles.

Spare Parts List

Check List for Commissioning

Pre-requisites for Initial Commissioning

Initial Start-up with Cold Water

Procedure for initial start-up with cold water.

Initial Operation with Hot Fluid

Supervision of Operations and Maintenance

Guidance on monitoring pump operation and maintenance.

Sectional Drawings and Component List

Balancing Liquid Piping

Requirement and Connection of Piping

KSB WK 125 Specifications

General

Type	Centrifugal pump
Impeller diameter (mm)	125
Frequency	50 Hz
Speed	2900 rpm
Inlet Diameter	80 mm
Weight	35 kg
Voltage	400 V