KSB WK 50 - 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

Introduction

Pump Construction

Overview of the pump's mechanical components and design.

Casing Details

Details of the pump's casing and its construction.

Rotor Assembly

Description of the pump's rotating assembly, including impellers.

Bearing Arrangement Types

Types of bearings and their arrangement in the pump.

Lubrication Procedures

Shaft Seal Mechanisms

Pump Operation and Mode of Function

Fluid Flow and Pressure Dynamics

Explanation of fluid flow through pump stages and pressure gain.

Axial Thrust Management

Pumping Set Installation

Installation and Preliminary Levelling

Coupling Alignment Procedure

Procedure for aligning the pump and driver coupling halves.

Final Alignment Checks

Commissioning and Operation

Commissioning Prerequisites Checklist

Initial Start-up Procedure

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

Operation and Supervision Guidelines

Guidelines for monitoring pump performance during operation.

Pump Shutdown Procedure

Pump Dismantling and Inspection

Dismantling Preparations

Bearing Dismantling Procedures

Shaft Seal Removal Process

Pump Body Disassembly

Component Inspection Guide

Pump Assembly and Reassembly

Reassembly Preparation Steps

Pump Body Assembly Steps

Steps for reassembling the pump casing sections.

Shaft Seal Assembly Instructions

Bearing Assembly Procedures

Troubleshooting Pump Problems

Common Operating Troubles and Causes

List of issues and their potential causes.

Detailed Causes of Damage

Detailed breakdown of potential causes for pump faults.

Suggested Remedies for Faults

Recommended solutions for identified pump problems.

Pre-Commissioning Check List

Commissioning Prerequisites

Essential checks before starting the commissioning process.

Initial Start-up (Cold Water)

Procedure for the first start-up with cold water.

Initial Operation (Hot Fluid)

Procedure for initial operation with hot fluid.

Operation and Maintenance Supervision

Monitoring and checks during pump operation and maintenance.

KSB WK 50 Specifications

General

Max Head	50 m
Frequency	50 Hz
Speed	2900 rpm
Material	Cast iron
Application	irrigation
Pump Type	Centrifugal
Voltage	230 V
Inlet Diameter	1 inch
Outlet Diameter	40 mm