Johnson Pump MCHZ Manuale utente

Instruction Manual

MCHZ(S)

Horizontal self-priming multistage pump

Orginal instructions

Read and understand this manual prior to

operating or servicing this product.

MCHZ/EN (0912) 4.2

EC/EN (0911) 5.0 1

EC Declaration of conformity (valid until 30-12-2009)

(Directive 98/37/EC, appendix II-A)

Manufacturer

SPX Process Equipment NL B.V.

Dr. A.F. Philipsweg 51

P.O. B ox 9

9400 AA Assen

The Netherlands

hereby declares that the pump, in case it is delivered as an assembly with drive (last

position of serial number = A), is in conformity with the provisions of Directive 98/37/EC

(as altered most recently) and the following directives and standards:

• EC directive 2006/95/EG, "Electric equipment for use within certain voltage limits"

• standards EN-ISO 12100 part 1 & 2, EN 809

The pump to which this declaration refers may only be put into operation after it has been

installed in the way prescribed by the manufacturer, and, as the case may be, after the

complete system of which this pump forms part, has been made to fulfil the requirements

of Directive 98/37/EC (as altered most recently).

Manufacturer's declaration (valid until 30-12-2009)

(Directive 98/37/EC, appendix II-B)

Manufacturer

SPX Process Equipment NL B.V.

Dr. A.F. Philipsweg 51

P.O. B ox 9

9400 AA Assen

The Netherlands

hereby declares that the pump, in case it is delivered without drive (last position of serial

number = B), is in conformity with the following standards:

• EN-ISO 12100 parts 1 & 2, EN 809

and that this pump is meant to be incorporated in or combined with another machine

(electric motor, combustion engine) and may only be put into use after the complete

machine of which the pump under consideration forms part has been made and declared

to comply with that directive.

Assen, November 1st 2009

G.A. Schaafsma,

General manager

2EC/EN (0911) 5.0

EC Declaration of conformity (valid from 30-12-2009)

(Directive 2006/42/EC, appendix II-A)

Manufacturer

SPX Process Equipment NL B.V.

Dr. A.F. Philipsweg 51

9403 AD Assen

The Netherlands

hereby declares that all pumps member of productfamilies CombiBloc, CombiBlocHorti,

CombiChem, CombiDirt, CombiFlex(U)(B), CombiPrime H, CombiLine, CombiLineBloc,

CombiMag, CombiMagBloc, CombiNorm, CombiPro(M)(V), CombiPrime V, CombiSump,

CombiWell, FRE, FRES, FREF, FREM, KGE(L), KGEF, HCR, MCH(W)(S), MCHZ(W)(S),

MCV)(S), PHA, MDR whether delivered without drive (last position of serial number = B),

or delivered as an assembly with drive (last position of serial number = A), are in

conformity with the provisions of Directive 2006/42/EC (as altered most recently) and

where applicable the following directives and standards:

• EC directive 2006/95/EG, "Electric equipment for use within certain voltage limits"

• standards EN-ISO 12100 part 1 & 2, EN 809

The pumps to which this declaration refers may only be put into operation after they have

been installed in the way prescribed by the manufacturer, and, as the case may be, after

the complete system of which these pumps form part, has been made to fulfil the

requirements of Directive 2006/42/EC (as altered most recently).

Declaration of incorporation (valid from 30-12-2009)

(Directive 2006/42/EC, appendix II-B)

Manufacturer

SPX Process Equipment NL B.V.

Dr. A.F. Philipsweg 51

9403 AD Assen

The Netherlands

hereby declares that the partly completed pump (Back-Pull-Out unit), member of

productfamilies CombiBloc, CombiBlocHorti, CombiChem, CombiDirt, CombiFlex(U)(B),

CombiPrime H, CombiLine, CombiLineBloc, CombiMag, CombiMagBloc, CombiNorm,

CombiPro(M)(V), CombiPrime V, FRE, FRES, FREF, FREM, KGE(L), KGEF, HCR, PHA, MDR is

in conformity with the following standards:

• EN-ISO 12100 parts 1 & 2, EN 809

and that this partly completed pump is meant to be incorporated into the specified pump

unit and may only be put into use after the complete machine of which the pump under

consideration forms part has been made and declared to comply with that directive.

Assen, November 1st 2009

G.A. Schaafsma,

General Manager

MCHZ/EN (0912) 4.2 3

MCHZ

Instruction manual

MCHZ(S)

All technical and technological information in this manual as well as possible drawings

made available by us remain our property and shall not be used (otherwise than for the

operation of this pump), copied, duplicated, made available to or brought to the notice of

third parties without our prior written consent.

SPX Process Equipment NL B.V. (hereafter called Johnson Pump) is part of SPX

Process Equipment AB. The core activities of SPX Process Equipment AB are the

development, production, sale and maintenance of pumps and pump units.

SPX Process Equipment NL B.V.

P.O. B ox 9

9400 AA Assen

The Netherlands

Tel. +31 (0)592 376767

Fax. +31 (0)592 376760

www.johnson-pump.com or www.spxpe.com

4MCHZ/EN (0912) 4.2

MCHZ/EN (0912) 4.2 5

MCHZ

Table of Contents

1 Introduction 9

1.1 Preface 9

1.2 Safety 9

1.3 Guarantee 10

1.4 Inspection of delivered items 10

1.5 Instructions for transport and storage 10

1.5.1 Dimensions and weight 10

1.5.2 Use of pallets 10

1.5.3 Hoisting 11

1.5.4 Storage 11

1.6 Ordering parts 12

2 General 13

2.1 Pump description 13

2.2 Applications 13

2.3 Type code 14

2.4 Serial number 14

2.5 Liquids 15

2.6 Construction 15

2.6.1 Pump section 15

2.6.2 Self-priming section 15

2.6.3 Impellers 15

2.6.4 Bearing construction 15

2.6.5 Shaft seal 16

2.7 Application area 16

2.8 Re-use 16

2.9 Scrapping 16

3Installation 17

3.1 Safety 17

3.2 Preservation 17

3.3 Environment 17

3.4 Piping 18

3.5 Accessories 18

3.6 Installation 19

3.6.1 Piping 19

3.6.2 Installation of a pump unit 19

3.6.3 Assembling a pump unit 19

3.6.4 Alignment of the coupling 19

3.6.5 Tolerances for aligning the coupling 20

6MCHZ/EN (0912) 4.2

3.7 Connection of the electric motor 20

4 Commissioning 21

4.1 Inspection of the pump 21

4.2 Inspection of the motor 21

4.3 Preparing the pump unit for commissioning 21

4.4 Checking the sense of rotation 21

4.5 Start-up 22

4.6 Adjustment of shaft sealing 22

4.6.1 Stuffing box packing 22

4.6.2 Mechanical seal 22

4.7 Pump in operation 22

4.8 Noise 22

5 Maintenance 23

5.1 Daily maintenance 23

5.2 Shaft sealing 23

5.2.1 Stuffing box packing 23

5.2.2 Mechanical seal 23

5.3 Environmental influences 23

5.4 Lubrication of the bearings 24

5.4.1 MCHZ(S) 12,5 - 14a/b (standard bearings) - 20a/b 24

5.4.2 MCHZ(S) 16 24

5.4.3 MCHZ(S) 14a/b with heavy bearing construction 24

5.5 Noise 24

5.6 Faults 24

6 Problem solving 25

7 Disassembly and assembly 27

7.1 Special tools 27

7.2 Precautionary measures 27

7.2.1 Switch off the power supply 27

7.2.2 Pipe support 27

7.2.3 Draining the liquid 27

7.3 Disassembling the MCHZ(S)12,5-14a/b-16 28

7.3.1 Replacing the stuffing box packing MCHZ 28

7.3.2 Replacing the mechanical seal MCHZS 29

7.3.3 Disassembling the pump 29

7.3.4 Disassembling the bearing housing on the drive side 29

7.3.5 Disassembly of the ball bearing 29

7.3.6 Disassembling the mechanical seal MCHZS 29

7.3.7 Disassembling the set of stage casings 30

7.3.8 Disassembling the bearing housing on the suction side 30

7.3.9 Disassembling the ball bearing on the suction side 30

7.3.10 Disassembling the mechanical seal on the MCHZS suction side 30

7.4 Assembly 31

7.4.1 Preparation for assembly 31

7.4.2 Sub-assembly of stage casings 31

7.4.3 Pump assembly 31

7.4.4 Assembling the stuffing box packing MCHZ 32

7.4.5 Assembling the mechanical seal MCHZS 32

7.4.6 Assembling the bearing construction 33

7.4.7 Assembling the stage set 34

7.5 Disassembling MCHZ(S) 14a/b heavy bearing construction 35

7.5.1 Replacing the stuffing box packing MCHZ 35

MCHZ/EN (0912) 4.2 7

MCHZ

7.5.2 Replacing the mechanical seal MCHZS 35

7.5.3 Disassembling the pump 35

7.5.4 Disassembling the bearing housing on the drive side 35

7.5.5 Disassembling the ball bearings 36

7.5.6 Disassembling the mechanical seal MCHZS 36

7.5.7 Disassembling the set of stage casings 36

7.5.8 Disassembling the bearing housing on the suction side 36

7.5.9 Disassembling the ball bearing on the suction side 36

7.5.10 Disassembling the mechanical seal on the MCHZS suction side 36

7.6 Assembling the MCHZ(S)14a/b heavy bearing construction 37

7.6.1 Preparation for assembly 37

7.6.2 Sub-assembly of stage casings 37

7.6.3 Pump assembly 37

7.6.4 Assembling the stuffing box packing MCHZ 37

7.6.5 Assembling the mechanical seal MCHZS 38

7.6.6 Assembling the bearing construction on the drive side 39

7.6.7 Assembling the stage set 40

7.6.8 Assembling the bearing construction on the suction side 40

7.7 Disassembling the MCHZ(S)20a/b 41

7.7.1 Replacing the stuffing box packing MCHZ 41

7.7.2 Replacing the mechanical seal MCHZS 41

7.7.3 Disassembling the MCHZ(S) 41

7.7.4 Disassembling the bearing housing on the drive side 41

7.7.5 Disassembly of the ball bearing 42

7.7.6 Disassembling the mechanical seal MCHZS 42

7.7.7 Disassembling the set of stage casings 42

7.7.8 Disassembling the bearing housing on the suction side 42

7.7.9 Disassembling the ball bearing on the suction side 42

7.7.10 Disassembling the mechanical seal on the MCHZS suction side 42

7.8 Assembling the MCHZ(S) 20a/b 43

7.8.1 Preparation for assembly 43

7.8.2 Sub-assembly of stage casings 43

7.8.3 Pump assembly 43

7.8.4 Assembling the stuffing box packing MCHZ 44

7.8.5 Assembling the mechanical seal MCHZS 44

7.8.6 Assembling the bearing construction 45

7.8.7 Assembling the stage set 46

8Dimensions 47

8.1 Dimensions MCHZ(S) 12,5 48

8.2 Dimensions MCHZ(S) 14a/b 49

8.3 Dimensions MCHZ(S) 16 50

8.4 Dimensions MCHZ(S) 20 51

8.5 Dimensions of unit MCHZ(S) 12,5 52

8.6 Dimensions of unit MCHZ(S) 14a 53

8.7 Dimensions of unit MCHZ(S) 14b 54

8.8 Dimensions of unit MCHZ(S) 16 55

8.9 Dimensions of unit MCHZ(S) 20a 56

8.10 Dimensions of unit MCHZ(S) 20b 57

9Parts 59

9.1 Ordering parts 59

9.1.1 Order form 59

9.1.2 Recommended spare parts 59

9.2 Designs 59

8MCHZ/EN (0912) 4.2

9.3 MCHZ 12,5 - 14a/b - 16 60

9.4 MCHZS 12,5 - 14a/b - 16 62

9.5 MCHZ 14a/b with heavy bearing construction 64

9.6 MCHZS 14a/b with heavy bearing construction 66

9.7 MCHZ 20a/b 69

9.8 MCHZS 20a/b 71

10 Technical data 73

10.1 Maximum speed 73

10.2 Permissible pressure and temperature 74

10.3 Hydraulic performance 75

10.3.1 Performance overview 3000 min-1 75

10.3.2 Performance overview 3600 min-1 76

10.4 Tightening moments for bolts and nuts 77

10.5 Tie rod torque 77

10.6 Post-greasing of ball bearings 77

10.7 Recommended locking liquids 77

10.8 Noise data 78

10.8.1 Pump noise as a function of pump power 78

10.8.2 Noise level of entire pump unit 79

Index 81

Order form for spare parts 83

MCHZ/EN (0912) 4.2 Introduction 9

MCHZ

1 Introduction

1.1 Preface

This manual is intended for technicians and maintenance staff and for those who are in

charge of ordering spare parts.

This manual contains important and useful information for the proper operation and

maintenance of this pump. It also contains important instructions to prevent potential

accidents and damage, and to ensure safe and fault-free operation of this pump.

! Read this manual carefully before commissioning the pump, familiarize

yourself with the operation of the pump and strictly obey the instructions!

The data published here comply with the most recent information at the time of going to

press. However they may be subject to later modifications.

Johnson Pump reserves the right to change the construction and design of the products

at any time without being obliged to change earlier deliveries accordingly.

1.2 Safety

This manual contains instructions for working safely with the pump. Operators and

maintenance staff must be familiar with these instructions.

Below is a list of the symbols used for those instructions and their meaning:

Personal danger for the user. Strict and prompt observance of the

corresponding instruction is imperative!

! Risk of damage or poor operation of the pump. Follow the corresponding

instruction to avoid this risk.

➢Useful instruction or tip for the user.

Items which require extra attention are shown in bold print.

This manual has been compiled by Johnson Pump with the utmost care. Nevertheless

Johnson Pump cannot guarantee the completeness of this information and therefore

assumes no liability for possible deficiencies in this manual. The buyer/user shall at all

times be responsible for testing the information and for taking any additional and/or

deviating safety measures. Johnson Pump reserves the right to change safety

instructions.

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