Centrifugal Pump with Volute Casing · 2017-12-22 · Centrifugal Pump with Volute Casing Original...

Centrifugal Pump withVolute CasingOriginal Operating Manual CNH-M series

Version BA-2010.03Print-No. 550 267VM-No. 460.0019 GB

ALLWEILER AG • Werk RadolfzellPostfach 1140Allweilerstr. 178301 RadolfzellGermanyPhone: +49 (0) 7732-86-0Fax: +49 (0) 7732-86-436E-mail: [email protected]: http://www.allweiler.com

We reserve the right to make technical changes.

Table of contents

Table of contents

1 About this document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.1 Target groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.2 Other applicable documents . . . . . . . . . . . . . . . . 5

1.3 Warnings and symbols . . . . . . . . . . . . . . . . . . . . . . . 6

1.4 Technical terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.1 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2 General safety instructions . . . . . . . . . . . . . . . . . . 72.2.1 Product safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72.2.2 Obligations of the operating company . . . . . . 82.2.3 Obligations of personnel . . . . . . . . . . . . . . . . . . . . . 8

2.3 Specific hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.3.1 Explosion-hazard area . . . . . . . . . . . . . . . . . . . . . . . 82.3.2 Hazardous pumped liquids . . . . . . . . . . . . . . . . . . 82.3.3 Magnetic field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3 Layout and function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.1 Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93.1.1 Type plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93.1.2 ATEX plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93.1.3 Pump type code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.2 Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.3 Auxiliary operating systems . . . . . . . . . . . . . . . . . 113.3.1 Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4 Transport, storage and disposal . . . . . . . . . . . . . . . . . . 12

4.1 Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124.1.1 Unpacking and inspection on delivery . . . . . . 124.1.2 Lifting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.2 Treatment for storage . . . . . . . . . . . . . . . . . . . . . . . . 13

4.3 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.4 Removing preservative . . . . . . . . . . . . . . . . . . . . . . 14

4.5 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5 Setup and connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.1 Preparing the setup . . . . . . . . . . . . . . . . . . . . . . . . . . 155.1.1 Checking the ambient conditions . . . . . . . . . . . 155.1.2 Preparing the installation site . . . . . . . . . . . . . . . 155.1.3 Preparing the foundation and surface . . . . . . 155.1.4 Removing preservative . . . . . . . . . . . . . . . . . . . . . . 155.1.5 Installing heat insulation (optional) . . . . . . . . . . 15

5.2 Installation on a foundation . . . . . . . . . . . . . . . . . . 165.2.1 Placing the pump unit on the

foundation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165.2.2 Fastening the pump unit . . . . . . . . . . . . . . . . . . . . . 17

5.3 Setup without foundation . . . . . . . . . . . . . . . . . . . . 17

5.4 Installing the motor . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.5 Planning the piping . . . . . . . . . . . . . . . . . . . . . . . . . . . 185.5.1 Specifying supports and flange

connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185.5.2 Specifying nominal diameters . . . . . . . . . . . . . . . 18

5.5.3 Specifying pipe lengths . . . . . . . . . . . . . . . . . . . . . . 185.5.4 Optimizing cross-section and direction

changesv . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185.5.5 Discharging leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185.5.6 Providing safety and control devices

(recommended) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.6 Connecting the pipes . . . . . . . . . . . . . . . . . . . . . . . . 195.6.1 Keeping the piping clean . . . . . . . . . . . . . . . . . . . . 195.6.2 Installing auxiliary piping . . . . . . . . . . . . . . . . . . . . . 195.6.3 Installing the suction pipe . . . . . . . . . . . . . . . . . . . . 195.6.4 Installing the pressure pipe . . . . . . . . . . . . . . . . . . 195.6.5 Inspection for stress-free pipe

connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205.6.6 Inspecting the support foot for

distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.7 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . 205.7.1 Connecting the motor . . . . . . . . . . . . . . . . . . . . . . . . 205.7.2 Checking the sense of rotation . . . . . . . . . . . . . . 20

5.8 Aligning the coupling precisely . . . . . . . . . . . . . . 21

5.9 Aligning the motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225.9.1 Aligning the motor with sets of shims . . . . . . . 225.9.2 Aligning the motor with adjusting

screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.10 Installing the coupling guard . . . . . . . . . . . . . . . . 22

6 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

6.1 Preparations for the initial start-up . . . . . . . . . . 236.1.1 Identifying the pump type . . . . . . . . . . . . . . . . . . . . 236.1.2 Removing preservative . . . . . . . . . . . . . . . . . . . . . . 236.1.3 Lubricating the bearings . . . . . . . . . . . . . . . . . . . . . 236.1.4 Preparing auxiliary systems (if

available) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246.1.5 Filling and bleeding . . . . . . . . . . . . . . . . . . . . . . . . . . 24

6.2 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246.2.1 Switching on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246.2.2 Switching off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6.3 Shutting down the pump . . . . . . . . . . . . . . . . . . . . . 25

6.4 Start-up following a shutdown period . . . . . . . 26

6.5 Operating the stand-by pump . . . . . . . . . . . . . . . 26

7 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

7.1 Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

7.2 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287.2.1 Antifriction bearings lubricated with

grease . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287.2.2 Antifriction bearings lubricated with oil . . . . . 287.2.3 Cleaning the pump . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

7.3 Dismounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297.3.1 Returning the pump to the

manufacturer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307.3.2 Preparations for dismounting . . . . . . . . . . . . . . . . 30

7.4 Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

7.5 Ordering spare parts . . . . . . . . . . . . . . . . . . . . . . . . . 31

8 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

2 CNH-M series BA-2010.03 460.0019 GB – 550 267

Table of contents

9 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

9.1 Sectional drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . 359.1.1 Auxiliary connections . . . . . . . . . . . . . . . . . . . . . . . . 359.1.2 Part numbers and designations . . . . . . . . . . . . . 359.1.3 Overview sectional drawing . . . . . . . . . . . . . . . . . 379.1.4 Coupling guard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

9.2 Technical specifications . . . . . . . . . . . . . . . . . . . . . . 439.2.1 Ambient conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . 439.2.2 Parameters for auxiliary systems . . . . . . . . . . . 439.2.3 Sound pressure levels . . . . . . . . . . . . . . . . . . . . . . . 439.2.4 Tightening torques . . . . . . . . . . . . . . . . . . . . . . . . . . . 449.2.5 Lubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 449.2.6 Preservatives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 449.2.7 Cleaning agents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 449.2.8 Height offset for motor alignment with

adjusting screw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 459.2.9 Flange loads according to ISO 5199 . . . . . . . 46

9.3 Spare parts for two years of continuousoperation according to DIN 24296 . . . . . . . . . . 47

9.4 Safety certificate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

9.5 Declaration of conformity according to ECmachine directives . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

460.0019 GB – 550 267 BA-2010.03 CNH-M series 3

Table of contents

List of figures

Fig. 1 Type plate (example) . . . . . . . . . . . . . . . . . . . . . . . . 9

Fig. 2 ATEX plate (example) . . . . . . . . . . . . . . . . . . . . . . . . 9

Fig. 3 Pump type code (example) . . . . . . . . . . . . . . . . . . 9

Fig. 4 CNH-M layout (with oil lubrication) . . . . . . . . . . 10

Fig. 5 Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Fig. 6 Fastening lifting gear to pump unit . . . . . . . . . . 12

Fig. 7 Fastening the lifting gear to the pump . . . . . . 12

Fig. 10 Installation without foundations . . . . . . . . . . . . . 17

Fig. 11 Straight pipe lengths upstreamand downstream of the pump(recommended) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Fig. 15 Aligning the motor with adjustingscrews . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Fig. 16 Checking the oil level . . . . . . . . . . . . . . . . . . . . . . . . 23

Fig. 17 CNH-M with oil lubrication, sizes on first andsecond bearing brackets . . . . . . . . . . . . . . . . . . . . 37

Fig. 18 CNH-M with oil lubrication, sizes on thirdbearing bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Fig. 19 CNH-M with grease lubrication, sizes on firstand second bearing brackets . . . . . . . . . . . . . . . 39

Fig. 20 CNH-M with grease lubrication, sizes on thirdbearing bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Fig. 21 CNH-M with heating . . . . . . . . . . . . . . . . . . . . . . . . . 41

Fig. 22 Double thrust bearing on first and secondbearing bracket (only for sizes 65-160 and80-160) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Fig. 23 Coupling guard on base plate versions . . . . . 42

Fig. 24 Flange loads at the pump . . . . . . . . . . . . . . . . . . . 46

Fig. 25 Correction factor M and operatingtemperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

List of tables

Tab. 1 Target groups and their duties . . . . . . . . . . . . . . 5

Tab. 2 Other applicable documents and theirpurpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Tab. 3 Warnings and consequences of disregardingthem .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Tab. 4 Symbols and their meaning . . . . . . . . . . . . . . . . . 6

Tab. 5 Technical terms and their meaning . . . . . . . . . 6

Tab. 6 Design characteristics . . . . . . . . . . . . . . . . . . . . . . . 9

Tab. 7 Measures to be taken if the pump is shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Tab. 8 Measures depending on the behavior of thepumped liquid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Tab. 9 Measures to be taken after prolongedshutdown periods . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Tab. 10 Measures for return . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Tab. 11 Malfunction/number assignment . . . . . . . . . . . . 32

Tab. 12 Troubleshooting list . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Tab. 13 Connection designation abbreviations . . . . . . 35

Tab. 14 Designation of components according to partnumbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Tab. 15 Ambient conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Tab. 16 Operating parameters for heatingchamber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Tab. 17 Sound pressure levels . . . . . . . . . . . . . . . . . . . . . . . 43

Tab. 18 Tightening torques . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Tab. 19 Minimum oil lubrication quantities . . . . . . . . . . . 44

Tab. 20 Valvoline preservatives . . . . . . . . . . . . . . . . . . . . . . 44

Tab. 21 Cleaning agents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Tab. 22 Height setting at the adjusting screw . . . . . . . 45

Tab. 23 Flange loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Tab. 24 Spare parts for two years of continuousoperation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Tab. 25 Safety certificate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Tab. 26 Declaration of conformity according to ECmachine directives . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

4 CNH-M series BA-2010.03 460.0019 GB – 550 267

About this document

1 About this document

This manual:• is part of the pump

• applies to the pump series mentioned above

• describes safe and appropriate operation at all operatingphases

1.1 Target groups

Target group Duty

Operating company Keep this manual available at the site of operation of the equipment,including for later use.Ensure that personnel read and follow the instructions in thismanual and the other applicable documents, especially all safetyinstructions and warnings.Observe any additional rules and regulations referring to thesystem.

Qualified personnel, fitter Read, observe and follow this manual and the other applicabledocuments, especially all safety instructions and warnings.

Tab. 1 Target groups and their duties

1.2 Other applicable documents

Document Purpose

ATEX additional instructions Operation in explosion-hazard areas

Order data sheet Technical specifications, conditions of operation

Setup drawing Setup dimensions, connection dimensions etc.

Technical description Technical specifications, operating limits

Sectional drawing Sectional drawing, part numbers, component designations

Supplier documentation Technical documentation for parts supplied by subcontractors

Spare parts list Ordering spare parts

Declaration of conformity Conformity with standardsContents of the declaration of conformity (→ 9.5 Declaration ofconformity according to EC machine directives, Page 50).

Tab. 2 Other applicable documents and their purpose

460.0019 GB – 550 267 BA-2010.03 CNH-M series 5

About this document

1.3 Warnings and symbols

Warning Risk level Consequences of disregard

DANGERImmediate acute risk Death, serious bodily harm

WARNINGPotentially acute risk Death, serious bodily harm

CAUTIONPotentially hazardous situation Minor bodily harm

NOTEPotentially hazardous situation Material damage

Tab. 3 Warnings and consequences of disregarding them

Symbol Meaning

Safety warning signTake note of all information highlighted by the safety warning signand follow the instructions to avoid injury or death.

Instruction

1. , 2. , ... Multiple-step instructions

Precondition

→ Cross-reference

Information, recommendation

Tab. 4 Symbols and their meaning

1.4 Technical terms

Term Meaning

Sealing medium Medium for blocking or quenching shaft seals

Auxiliary operating systems Systems for operating the pump

Tab. 5 Technical terms and their meaning

6 CNH-M series BA-2010.03 460.0019 GB – 550 267

Safety

2 Safety

The manufacturer does not accept any liability for damageresulting from disregard of the entire documentation.

2.1 Intended use• Only use the pump to pump the agreed pumped liquids

(→ order data sheet).

• Adhere to the operating limits and size-dependentminimum flow rate.

• Avoid dry running:Initial damage, such as destruction of seals and plasticparts, will occur within only a few seconds.– Make sure the pump is only operated with, and never

without, pumped liquid.

• Avoid cavitation:– Fully open the suction-side fitting and do not use it to

adjust the flow.– Do not open the pressure-side fitting beyond the

agreed operating point.

• Avoid overheating:– Do not operate the pump while the pressure-side fitting

is closed.– Observe the minimum flow rate (→ order data sheet).

• Avoid damage to the motor:– Do not open the pressure-side fitting beyond the

agreed operating point.– Note the maximum permissible number of times the

motor can be switched on per hour (→ manufacturer'sspecifications).

• Consult the manufacturer about any other use of the pump.

• When a pump is delivered without a motor, the pump unitmust be completed in accordance with the stipulations ofmachine directive 2006/42/EC.

Prevention of obvious misuse (examples)• Note the operating limits of the pump with regard to

temperature, pressure, flow rate and motor speed (→ orderdata sheet).

• The power consumed by the pump increases withincreasing specific gravity of the pumped medium. Toavoid overloading the pump, coupling or motor, stay withinthe agreed density (→ order data sheet).Lower densities are allowed. Adapt the auxiliary systemsaccordingly.

• When pumping liquids containing solids, ensure thelimits for the proportion of solids and the grain size aremaintained (→ order data sheet, technical description).

• When using auxiliary systems, ensure there is a continuoussupply of the appropriate operating medium.

• Pumps used with water as the pumped liquid must not beused for foodstuffs or drinking water. Use of the pump forfoodstuffs or drinking water must be specified in the orderdata sheet.

• Only select the setup type according to this operatingmanual. For example, the following are not allowed:– Hanging base plate pumps in the pipe– Overhead installation– Installation in the immediate vicinity of extreme heat or

cold sources– Installation too close to the wall

2.2 General safety instructionsObserve the following regulations before carrying out anywork.

2.2.1 Product safety

The pump has been constructed according to thelatest technology and recognized technical safety rules.Nevertheless, operation of the pump can still put the life andhealth of the user or third parties at risk or damage the pumpor other property.

• Only operate the pump if it is in perfect technical conditionand only use it as intended, staying aware of safety andrisks, and in adherence to the instructions in this manual.

• Keep this manual and all other applicable documentscomplete, legible and accessible to personnel at all times.

• Refrain from any procedures and actions that would posea risk to personnel or third parties.

• In the event of any safety-relevant malfunctions, shut downthe pump immediately and have the malfunction correctedby appropriate personnel.

• In addition to the entire documentation for the product,comply with statutory or other safety and accident-prevention regulations and the applicable standards andguidelines in the country where the pump is operated.

460.0019 GB – 550 267 BA-2010.03 CNH-M series 7

Safety

2.2.2 Obligations of the operating company

Safety-conscious operation

• Only operate the pump if it is in perfect technical conditionand only use it as intended, staying aware of safety andrisks, and in adherence to the instructions in this manual.

• Ensure that the following safety aspects are observed andmonitored:– Adherence to intended use– Statutory or other safety and accident-prevention

regulations– Safety regulations governing the handling of

hazardous substances– Applicable standards and guidelines in the country

where the pump is operated

• Make personal protective equipment available.

Qualified personnel• Make sure all personnel tasked with work on the pump

have read and understood this manual and all otherapplicable documents, especially the safety, maintenanceand repair information, before they start any work.

• Organize responsibilities, areas of competence and thesupervision of personnel.

• Have all work carried out by specialist technicians only:– Fitting, repair and maintenance work– Work on the electrical system

• Make sure that trainee personnel only work on the pumpunder supervision of specialist technicians.

• Persons who have an implanted pacemaker– must stay away from the pump with magnetic coupling

and parts of the magnetic coupling– must not work on or with the magnetic parts.

Safety equipment

• Provide the following safety equipment and verify itsfunctionality:– For hot, cold and moving parts: safety guarding

provided by the operating company for the pump– For potential build up of electrostatic charge: ensure

appropriate grounding.

Warranty

• Obtain the manufacturer's approval prior to carrying outanymodifications, repairs or alterations during the warrantyperiod.

• Only use genuine parts or parts that have been approvedby the manufacturer.

2.2.3 Obligations of personnel• All directions given on the pumpmust be followed (and kept

legible), e.g. the arrow indicating the sense of rotation andthe markings for fluid connections.

• Pump, coupling guard and components:– Do not step on them or use as a climbing aid– Do not use them to support boards, ramps or beams– Do not use them as a fixing point for winches or

supports– Do not use them for storing paper or similar materials– Do not use hot pump or motor components as a heating

point– Do not de-ice using gas burners or similar tools

• Do not remove the safety guarding for hot, cold or movingparts during operation.

• Use personal protective equipment whenever necessary.

• Only carry out work on the pump while it is not running.

• Isolate the motor from its supply voltage and secure itagainst being switched back on again prior to any fitting ormaintenance work.

• Reinstall the safety equipment on the pump as required byregulations after any work on the pump.

• With an implanted pacemaker:– Stay at least 1 m away from the pump with magnetic

coupling or parts of the magnetic coupling.– Do not work with or on the magnetic parts.

2.3 Specific hazards

2.3.1 Explosion-hazard area• (→ ATEX additional instructions).

2.3.2 Hazardous pumped liquids• Follow the safety regulations for handling hazardous

substances when handling hazardous(e.g. hot, flammable, poisonous or potentially harmful)pumped liquids.

• Use personal protective equipment when carrying out anywork on the pump.

2.3.3 Magnetic fieldThe magnetic field of the magnetic coupling can destroyproducts that are sensitive to magnets. These include• Pacemakers

• Plastic identity cards with magnetic strips

• Credit and check cards

• electric, electronic, fine-mechanical devices (such asmechanical and digital clocks, pocket calculators, harddiscs)

8 CNH-M series BA-2010.03 460.0019 GB – 550 267

Layout and function

3 Layout and function

3.1 Label

3.1.1 Type plate

NPSHkW1/min P mnm3/h H mQ

Nr Jahr

Typ

mm2/skg/dm 3

D - 78315 Radolfzell / Germany

Typ und Nr.

1

234

56

7

10

98

angebenBei Ersatzteilbestellung

Fig. 1 Type plate (example)

1 Pump type2 Year of manufacture3 Differential head4 Pump NPSH value5 Kinematic viscosity6 Power consumption7 Density8 Motor speed9 Flow rate10 Pump number

3.1.2 ATEX plate

Technical File No.:EX9 03 09 45910 002

II 2 G c b Tx

1

2

Fig. 2 ATEX plate (example)

1 Explosion protection mark2 Reference to ATEX additional instructions

3.1.3 Pump type code

Fig. 3 Pump type code (example)

1 Series2 Nominal outlet flange diameter [mm]3 Nominal impeller diameter [mm]4 Hydraulic number5 Actual impeller diameter [mm]6 Design characteristics (see following table)7 Size of the magnetic coupling8 Placement of magnets (overall length of the magnets [mm])9 Material key

Abbreviation Design characteristic

F Special flanges

H Heatable housing and housing cover

I Heatable housing cover

S Special version

Tab. 6 Design characteristics

460.0019 GB – 550 267 BA-2010.03 CNH-M series 9

Layout and function

3.2 Layout

1

2 3 4

67

8

5

Fig. 4 CNH-M layout (with oil lubrication)

1 Volute casing2 Magnetic coupling3 Bearing bracket

4 Shaft5 Limit for heat insulation6 Plain bearing

7 Pump shaft8 Impeller

10 CNH-M series BA-2010.03 460.0019 GB – 550 267

Layout and function

3.3 Auxiliary operating systems

3.3.1 Heating

Fig. 5 Heating

1 Heating the casing2 Heating the cover

460.0019 GB – 550 267 BA-2010.03 CNH-M series 11

Transport, storage and disposal

4 Transport, storage and disposal

4.1 TransportWeight specifications (→ documents for the particularorder).

DANGERRisk of death and material damage due to magnetic field!

Make sure that personnel who have a pacemaker do notperform any work on the pump.Secure the work area. If necessary isolate the area:– Make sure that personnel with pacemakers keep a safe

distance of at least 1 m.– Make sure that no magnetizable metal parts can be

attracted by the magnetic coupling of the pump.– Make sure that parts of the magnetic coupling cannot

be attracted by the magnetizable metal parts.Keep all magnetic-sensitive objects at a safe distance of atleast 150 mm from the magnetic coupling.

4.1.1 Unpacking and inspection on delivery

1. Unpack the pump/aggregate on delivery and inspect it fortransport damage.

2. Report any transport damage to the manufacturerimmediately.

3. Dispose of packaging material according to localregulations.

4.1.2 Lifting

DANGERDeath or crushing of limbs caused by falling loads!

Use lifting gear appropriate for the total weight to betransported.Fasten the lifting gear as illustrated in the following.Never fasten the lifting gear onto the motor eyebolt (unlessused as a safety device against tipping over for units witha high center of gravity).Do not stand under suspended loads.

Fig. 6 Fastening lifting gear to pump unit

Fig. 7 Fastening the lifting gear to the pump

Lift the pump/unit properly.

12 CNH-M series BA-2010.03 460.0019 GB – 550 267


4.2 Treatment for storageNot necessary for stainless materials

NOTEMaterial damage due to inappropriate treatment forstorage!

Treat the pump properly, inside and outside, for storage.

1. Choose a preservative appropriate for the type andduration of storage (→ 9.2.6 Preservatives, Page 44).

2. Use the preservative specified by the manufacturer.3. All bare metal parts should be treated, inside and outside.

4.3 Storage






NOTEMaterial damage due to inappropriate storage!

Treat and store the pump properly.

1. Close all openings with blank flanges, plugs or plasticcovers.

2. For models with oil-lubricated bearings and downtimes inexcess of one year:– Remove reservoir– Remove the connecting piece for the oil level regulator– Seal the threaded hole– Fill the bearing housing with oil, up to the brim– Seal the bleed hole

3. Make sure the storage room meets the followingconditions:– Dry– Frost-free– Vibration-free

4. Turn the shaft once a month.5. Make sure the shaft and bearing change their rotational

position in the process.

460.0019 GB – 550 267 BA-2010.03 CNH-M series 13


4.4 Removing preservativeOnly necessary for pumps treated for storage.

WARNINGRisk of poisoning by preservatives and cleaning agents inthe foodstuffs and drinking water sector!

Only use cleaning agents which are compatible with thepumped liquid (→ 9.2.7 Cleaning agents, Page 44).Completely remove all preservative.

NOTEHigh water pressure or spray water can damage bearings!

Do not clean bearing areas with a water or steam jet.

NOTEDamage to seals by using the wrong cleaning agents!

Ensure the cleaning agent does not corrode the seals.

1. Choose the cleaning agent according to the application.(→ 9.2.7 Cleaning agents, Page 44).

With Tectyl 506 EH: allow benzine to soak in for 10 minutes(recommended).

2. Dispose of preservatives according to local regulations.3. For storage times in excess of 6 months:

– Replace the elastomer parts made of EP rubber(EPDM).

– Check all elastomer parts (O-rings, shaft seals) forproper elasticity and replace them if necessary.

4.5 DisposalPlastic parts can be contaminated by poisonous orradioactive pumped liquids to such an extent that cleaningwill be insufficient.






WARNINGRisk of poisoning and environmental damage by thepumped liquid or oil!

Use personal protective equipment when carrying out anywork on the pump.Prior to the disposal of the pump:– Collect and dispose of any leaking pumped liquid or oil

in accordance with local regulations.– Neutralize residues of pumped liquid in the pump.– Remove the preservative (→ 4.4 Removing

preservative, Page 14).Remove the plastic parts and dispose of them inaccordance with local regulations.

Dispose of the pump in accordance with local regulations.

14 CNH-M series BA-2010.03 460.0019 GB – 550 267

Setup and connection

5 Setup and connection

For pumps in explosion-hazard areas (→ ATEX additionalinstructions).

NOTEMaterial damage due to distortion or passage of electricalcurrent in the bearing!

Do not make any structural modifications to the pump unitor pump casing.Do not carry out any welding work on the pump unit orpump casing.

NOTEMaterial damage caused by dirt!

Do not remove the transportation locks until immediatelybefore installing the pump.Do not remove any covers or transport and sealing coversuntil immediately before connecting the pipes to the pump.

5.1 Preparing the setup






5.1.1 Checking the ambient conditionsMake sure the required ambient conditions are fulfilled(→ 9.2.1 Ambient conditions, Page 43).

5.1.2 Preparing the installation site

Ensure the installation site meets the following conditions:– Pump is freely accessible from all sides– Sufficient space for the installation/removal of the pipes

and for maintenance and repair work, especially for theremoval and installation of the pump and the motor

– Pump not exposed to external vibrations (damage tobearings)

– Frost protection

5.1.3 Preparing the foundation and surface

Setup options:– With concrete foundation– With steel foundation frame– Without foundation

Make sure the foundation and surface meet the followingconditions:– Level– Clean (no oil, dust or other impurities)– Capable of bearing the weight of the pump unit and all

operating forces– Ensure the pump is stable and cannot tip over– With concrete foundation: standard concrete of

strength class B 25

5.1.4 Removing preservativeIf the pump is to be put into operation immediately aftersetup and connection: remove the preservative prior tosetup (→ 4.4 Removing preservative, Page 14).

5.1.5 Installing heat insulation (optional)Only necessary to maintain the temperature of the pumpedliquid

NOTEMaterial damage on the bearing or shaft seal due tooverheating!

Only install the heat insulation on the volute casing(→ Figure CNH-M layout (with oil lubrication), Page 10).

Install the heat insulation properly.

460.0019 GB – 550 267 BA-2010.03 CNH-M series 15


5.2 Installation on a foundation






NOTEMaterial damage due to distortion of the base plate!

Place the base plate on the foundation and fasten it to it asdescribed in the following.

5.2.1 Placing the pump unit on the foundation✔ Implements, tools and materials:

– Foundation bolts (→ setup drawing)– Steel washers– Non-shrinking mortar grout– Spirit level

1. Lift the pump aggregate (→ 4.1 Transport, Page 12).2. Attach the foundation bolts from below into the base plate

fixing holes.

Observe the manufacturer's instructions when usingadhesive anchors.

3. Set the pump unit down on the foundation. When doingso, sink the foundation bolts into the prepared anchoringholes.

32 1 2

Fig. 8 Setup with foundation

4. Use steel washers to align the pump unit to the height andsystem dimensions as described in the following:– Place a steel washer (2) to the left and right-hand side

of each foundation bolt (1).– If the distance between the anchoring holes is greater

than 750 mm, place additional steel washers (3) in themiddle, on each side of the base plate.

5. Make sure the steel washers lie flat against the base plate,in full contact.

6. Use the integrated spirit level to check whether the pump islevel end to end and side to side with a maximum allowabletilt of 1 mm/m.

7. Repeat the procedure until the base plate is correctlyaligned.

16 CNH-M series BA-2010.03 460.0019 GB – 550 267


5.2.2 Fastening the pump unit

The damping behavior is improved by filling the base platewith mortar grout.

1. Fill the anchoring holes with mortar grout.2. When the mortar grout has set, screw down the base plate

at three points with the specified torque.3. Before tightening the remaining bolts, compensate for any

unevenness in the surface using metal spacing shims nextto each bolt.

4. Check the pump unit for any distortion with a straightedge:

1

Fig. 9 Checking for distortion

– Measure in two planes at an angle of 90° on thecircumference of the coupling.

– Check the light gap at the outer diameter using astraightedge (1):Position the straightedge across both halves of thecoupling.If there is significant deviation, undo the fixing to thebase plate and correct the distortion by inserting moreshims.

– Fill the inside of the base plate with concrete, ifintended. Knock on the base plate to ensure that nocavities are created in the process.

Couplings with a spacer piece (dismountable coupling) canalso be checked with a dial gauge.

5.3 Setup without foundation✔ Implements, tools and materials:

– Wrench– Spirit level






1

1

1

12

3

4

Fig. 10 Installation without foundations

1. Lift the pump aggregate (→ 4.1.2 Lifting, Page 12).2. Fit four leveling feet (1) as illustrated.3. Set the pump aggregate down on the surface.4. Use the adjustable feet (1) to set the height of the base

plate as illustrated above:– Use a wrench to hold the hexagon steady on the

leveling foot (4).– Loosen the hexagon nut (2).– Set the height by turning the hexagon nut (3).– Tighten the hexagon nut (2) (→ 9.2.4 Tightening

torques, Page 44).– Use the integrated spirit level to check whether the

pump is level end to end and side to side with amaximum allowable tilt of 1 mm/m.

– Repeat the procedure until the base plate is correctlyaligned.

460.0019 GB – 550 267 BA-2010.03 CNH-M series 17


5.4 Installing the motorOnly necessary if the pump unit is assembled on site.

NOTEMaterial damage caused by knocks and bumps!

Keep the coupling halves properly aligned when slippingthem on.Do not knock or hit any components of the pump.

1. Smear a very thin coat of molybdenum disulfide (e.g.Molykote) on the shaft ends of the pump and motor.

2. Insert shaft keys.3. Without a mounting rig: remove the rubber buffers and heat

the coupling halves up to approximately 100 °C.4. Slide on the pump-side and motor-side coupling halves

until the shaft end is flush with the coupling hub. Whendoing so, make sure the prescribed distance between thecoupling halves is maintained (→ assembly instructions forthe coupling).

5. Tighten the grub screws on both coupling halves.6. Use suitable metal shims at the motor to align the end of

the motor shaft to the end of the pump shaft.7. Screw in the motor bolts, but do not tighten them yet

(→ 5.9 Aligning the motor, Page 22).

5.5 Planning the piping

5.5.1 Specifying supports and flange connections

NOTEMaterial damage due to excessive forces and torquesexerted by the piping on the pump!

Do not exceed the permissible limits (→ 9.2.9 Flange loadsaccording to ISO 5199, Page 46).

1. Calculate the pipe forces, taking every possible operatingcondition into account:– Cold/warm– Empty/full– Unpressurized/pressurized– Positional changes of the flanges

2. Ensure the pipe supports have permanent low-frictionproperties and do not seize up due to corrosion.

5.5.2 Specifying nominal diameters

Keep the flow resistance in the pipes as low as possible.

1. Make sure the nominal suction pipe diameter is ≥ thenominal suction branch diameter.

2. Make sure the nominal pressure pipe diameter is ≥ thenominal outlet flange diameter.

5.5.3 Specifying pipe lengths

C

D

B

A

Fig. 11 Straight pipe lengths upstream and downstreamof the pump (recommended)

A > 5 x nominal suction pipe diameterB Nominal suction pipe diameterC Nominal pressure pipe diameterD > 5 x nominal pressure pipe diameter

Maintain the recommended minimum values wheninstalling the pump.

Suction side: shorter pipes are possible but may restrictthe hydraulic performance.Pressure side: shorter pipes are possible but can result inincreased operating noise.

5.5.4 Optimizing cross-section and direction changesv

1. Avoid bending radii of less than 1.5 times the nominal pipediameter.

2. Avoid abrupt changes of cross-section along the piping.

5.5.5 Discharging leaks

WARNINGRisk of injury and poisoning due to hazardous pumpedliquids!

Safely collect any leaking pumped liquid, then dischargeand dispose of it in accordance with environmentalregulations.

1. Provide equipment for collecting and discharging leakingliquids.

2. Ensure the free discharge of leaking liquids.

18 CNH-M series BA-2010.03 460.0019 GB – 550 267


5.5.6 Providing safety and control devices(recommended)

Avoid impurities

1. Integrate a filter in the suction pipe.2. To monitor impurities, install a differential pressure gauge

with a contact manometer.

Avoiding reverse running

Install a non-return valve between the outlet flange and thegate valve to ensure the medium does not flow back whenthe pump is switched off.

Making provisions for isolating and shutting off pipes

For maintenance and repair work.

Provide shut-off devices in the suction and pressure pipes.

Allow measurements of the operating conditions

1. Provide manometers for pressure measurements in thesuction and pressure pipes.

2. Provide load monitors (overload and underload) on themotor side.

3. Provide for pump-side temperature measurements.

5.6 Connecting the pipes






5.6.1 Keeping the piping clean

NOTEMaterial damage due to impurities in the pump!

Make sure no impurities can enter the pump.

1. Clean all piping parts and fittings prior to assembly.2. Ensure no flange seals protrude inwards.3. Remove any blank flanges, plugs, protective foils and/or

protective paint from the flanges.

5.6.2 Installing auxiliary pipingObserve the manufacturers' specifications for any auxiliaryoperating systems which are present.

1. Connect the auxiliary pipes to the auxiliary connections sothat they are stress-free and do not leak (→ setup drawing).

2. To avoid air pockets: run the pipes with a continuous slopeup to the pump.

5.6.3 Installing the suction pipe

1. Remove the transport and sealing covers from the pump.2. To avoid air pockets: run the pipes with a continuous slope

up to the pump.3. Ensure no seals protrude inwards.4. For suction operation: install a foot valve in the suction pipe

to prevent the pump and suction pipe from running emptyduring downtimes.

5.6.4 Installing the pressure pipe

1. Remove the transport and sealing covers from the pump.2. Install the pressure pipe.3. Ensure no seals protrude inwards.

460.0019 GB – 550 267 BA-2010.03 CNH-M series 19


5.6.5 Inspection for stress-free pipe connections✔ Piping installed and cooled down

NOTEMaterial damage due to distorted pump casing

Ensure that all pipes are stress relieved when connectedto the pump.

1. Disconnect the pipe connecting flanges from the pump.2. Check whether the pipes can be moved freely in all

directions within the expected range of expansion:– Nominal diameter < 150 mm: by hand– Nominal diameter > 150 mm: with a small lever

3. Make sure the flange surfaces are parallel.4. Reconnect the pipe connecting flanges to the pump.

5.6.6 Inspecting the support foot for distortion1. Loosen the bolts connecting the support foot to the base

plate.2. If the support foot moves, compensate for distortion:

– Lateral shift: by means of slotted holes– Height shift: by means of metal shims

3. Screw the support foot back onto the base plate, makingsure that the bearing bracket is not distorted in the process.

5.7 Electrical connection






DANGERRisk of death due to electric shock!

Have all electrical work carried out by qualified electriciansonly.

DANGERRisk of death due to rotating parts!

Isolate the motor from its supply voltage and secure itagainst being switched back on again prior to any fitting ormaintenance work.

5.7.1 Connecting the motorFollow the instructions of the motor manufacturer.

1. Connect the motor according to the connection diagram.2. Make sure no danger arises due to electric power.3. Install an EMERGENCY STOP switch.

5.7.2 Checking the sense of rotation


Use personal protective equipment when carrying out anywork on the pump.Secure the shaft key from being thrown out when checkingthe sense of rotation.Keep an adequate distance to rotating parts.

NOTEMaterial damage caused by dry running or incorrect senseof rotation!

Uncouple the motor from the pump.

1. Switch the motor on and immediately off again.2. Check whether the motor's sense of rotation is the same

as that of the arrow on the pump.3. If the sense of rotation is different: swap two phases.4. Couple the motor to the pump again.

20 CNH-M series BA-2010.03 460.0019 GB – 550 267


5.8 Aligning the coupling precisely


Isolate the motor from its supply voltage and secure itagainst being switched back on again prior to any fitting ormaintenance work.

NOTEMaterial damage due to incorrect alignment of thecoupling!

Align the motor exactly to the pump if there is any vertical,lateral or angular misalignment.For detailed information and special couplings:(→ manufacturer's specifications)

Checking the alignment of the coupling✔ Implements, tools and materials:

– Feeler gauge– Straightedge– Dial gauge (for couplings with spacer piece)– Other suitable tools, e.g. laser alignment instrument

1

2

A

Fig. 12 Checking the alignment of the coupling

1. Measure in two planes at an angle of 90° on thecircumference of the coupling.

2. Check the light gap towards the outer diameter with astraightedge (1):– Position the straightedge across both halves of the

coupling.– Align the motor if there is a visible gap at the outer

diameter (→ 5.9 Aligning the motor, Page 22).

3. Measure the gap with a feeler gauge (2):– Permissible gap (→ setup drawing)– Use the feeler gauge to measure the gap (A) between

the coupling halves.– Align the motor if the gap is too wide (→ 5.9 Aligning

the motor, Page 22).

Fig. 13 Checking for lateral and vertical misalignment

4. Check for any lateral or vertical misalignment using the dialgauge:– Carry out the measurement as illustrated.– Align the motor if there is any lateral or vertical

misalignment (→ 5.9 Aligning the motor, Page 22).Permissible axial or radial deviation, measured on thecoupling front or circumference, respectively:< 0.05 mm

Fig. 14 Checking for angular displacement

5. Check the angular displacement with a dial gauge:– Carry out the measurement as illustrated.– If there is any angular misalignment: align the motor.

460.0019 GB – 550 267 BA-2010.03 CNH-M series 21


5.9 Aligning the motorAlignment options:– With sets of shims– With adjusting screws

5.9.1 Aligning the motor with sets of shims1. Align the motor so that the coupling halves are exactly in

line and fit shims if necessary.2. Check the alignment.3. Repeat the alignment procedure if there is still any vertical

misalignment.4. Then tighten the motor bolts.

5.9.2 Aligning the motor with adjusting screws

1

43

2

Fig. 15 Aligning the motor with adjusting screws

Observe the angle of rotation of the spindle when adjustingthe adjusting screws (→ 9.2.8 Height offset for motoralignment with adjusting screw, Page 45).

1. Determine the necessary angle of rotation of the wrenchfor the height offset measured (→ 9.2.8 Height offset formotor alignment with adjusting screw, Page 45).

2. Loosen the hexagon head bolts (1).3. Carry out the following steps on all adjusting screws (3):

– Hold the adjusting screw (3) firmly on the hexagonhead (2) and loosen the lock nut (4).

– Turn the adjusting screw (3) to the selected angle.– Hold the adjusting screw (3) firmly on the hexagon

head (2) and tighten the lock nut (4).4. Tighten the hexagon head bolts (1).5. Check the alignment.6. Repeat the alignment procedure if there is still any vertical

misalignment.7. Then tighten the motor bolts.

5.10 Installing the coupling guardDo not unscrew the non-loseable nuts (902.101) from thethreaded rod.

Base plate version

1. Installing the coupling guard– Gap between coupling guard and pump < 8 mm– Gap between coupling guard and motor < 8 mm (set

the equalizing pipe (681.102) accordingly)

22 CNH-M series BA-2010.03 460.0019 GB – 550 267

Operation

6 Operation


6.1 Preparations for the initial start-up






6.1.1 Identifying the pump type

Identify the pump type (→ order data sheet).

Pump types vary e.g. with regard to bearing lubrication,bearing bracket size, type of shaft seal and auxiliarysystems.

6.1.2 Removing preservative

Only necessary for pumps treated for storage.

Remove the preservative (→ 4.4 Removing preservative,Page 14).

6.1.3 Lubricating the bearings

Pumps with grease-lubricated antifriction bearings areready for operation upon delivery.

Fill the bearing housing with lubricating oil

Only for pumps with oil-lubricated antifriction bearings.

Fig. 16 Checking the oil level

1 Reservoir2 Air release plug3 Oil level4 Screw plug5 Connecting piece for oil level regulator6 Position to refill the oil reservoir which

compensates the oil level

1. Be certain to use the correct type and at least the minimumamount of lubrication oil when filling the bearing housing(→ 9.2.5 Lubricants, Page 44).

2. Remove air release plug.3. Tip reservoir back.4. Add lubricating oil to the vent opening, until oil is visible in

the connecting piece to the oil level regulator.5. Fill the reservoir and tip it up.6. Repeat step 5 until the reservoir remains two thirds filled

with lubricating oil.7. Refit the air release plug.

460.0019 GB – 550 267 BA-2010.03 CNH-M series 23

Operation

6.1.4 Preparing auxiliary systems (if available)

The manufacturer does not accept any liability for damagecaused by installing or using a third-party or unapprovedauxiliary system.

Heating the casing

1. Install the connections and install the heating properly(→ manufacturer's specifications).

2. Ascertain the heating parameters (→ 9.2.2 Parameters forauxiliary systems, Page 43).

6.1.5 Filling and bleeding✔ Auxiliary operating systems ready for operation


Safely collect any leaking pumped liquid and dispose of itin accordance with environmental rules and requirements.

NOTEMaterial damage caused by dry running!

Make sure the pump is filled properly.

1. Fill the pump and the suction pipe with pumped liquid.2. Open the suction-side fitting.3. Open the pressure-side fitting.4. If present: open the auxiliary systems and check the flow

rate.5. Verify that no pipe connections are leaking.

6.2 Start-up






6.2.1 Switching on✔ Pump set up and connected properly✔ Motor set up and connected properly✔ Motor exactly aligned with the pump✔ All connections stress-free and sealed✔ Any available auxiliary systems are ready for operation✔ All safety equipment installed and tested for functionality✔ Pump prepared, filled and bled properly

DANGERRisk of injury due to running pump!

Do not touch the running pump.Ensure that the coupling guard is attached.Do not carry out any work on the running pump.Allow the pump to cool down completely before starting anywork.

DANGERRisk of injury and poisoning due to pumped liquidspraying out!

Use personal protective equipment when carrying out anywork on the pump.

NOTEMaterial damage caused by dry running!

Make sure the pump is filled properly.

NOTERisk of cavitation when throttling down the suction flowrate!

Fully open the suction-side fitting and do not use it to adjustthe flow.Do not open the pressure-side fitting beyond the operatingpoint.

24 CNH-M series BA-2010.03 460.0019 GB – 550 267

Operation

NOTEMaterial damage caused by overheating!

Do not operate the pump for long periods with the pressure-side fitting closed.Observe the minimum flow rate (→ order data sheet).

1. Open the suction-side fitting.2. Close the pressure-side fitting.3. Switch on the motor and make sure it is running smoothly.4. Once the motor has reached its nominal speed, open

the pressure-side fitting slowly until the operating point isreached.

5. For pumps with hot pumped liquids, make sure anytemperature changes do not exceed 5 K/min.

6. After the first load under pressure and at operatingtemperature, check that the pump is not leaking.

7. If the pumped liquid is hot, switch off the pump briefly atoperating temperature, check the alignment of the couplingand realign the motor if necessary (→ 5.8 Aligning thecoupling precisely, Page 21).

6.2.2 Switching off✔ Pressure-side fitting closed (recommended)

WARNINGRisk of injury due to hot pump parts!


1. Switch off the motor.2. Check all tie bolts and tighten them if necessary (only after

putting the pump into service for the first time).

6.3 Shutting down the pump







Safely collect any leaking pumped liquid and dispose of itin accordance with environmental rules and requirements.

460.0019 GB – 550 267 BA-2010.03 CNH-M series 25

Operation

Take the following measures whenever the pump is shutdown:

Pump is Measure

shut down Take measures according tothe pumped liquid (→ Table8 Measures depending on thebehavior of the pumped liquid,Page 26).

...emptied Close the suction-side andpressure-side fittings.

...dismounted Isolate the motor from its powersupply and secure it againstunauthorized switch-on.

...put intostorage

Follow the storage instructions(→ 4.3 Storage, Page 13).

Tab. 7 Measures to be taken if the pump is shut down

Duration of shutdown (dependingon process)

Behavior of thepumped liquid

Short Long

crystallized orpolymerized,Solidssedimenting

Flush thepump.

Flush thepump.

Solidifying/freezing,non-corrosive

Heat up orempty thepump andcontainers.

Empty thepump andcontainers.

Solidifying/freezing,corrosive

Heat up orempty thepump andcontainers.

Empty thepump andcontainers.Treat thepump andcontainerswithpreservative.

Remains liquid,non-corrosive

– –

Remains liquid,corrosive

– Empty thepump andcontainers.Treat thepump andcontainerswithpreservative.

Tab. 8 Measures depending on the behaviorof the pumped liquid

6.4 Start-up following a shutdown period






1. If the pump is shut down for over 1 year, take the followingmeasures before restoring it to service:

Shutdown period Measure

> 1 year For oil-lubricated bearings:carry out oil change.For versions with antifrictionbearings without lifetimelubrication: relubricate

> 2 years Replace elastomer seals(O-rings, shaft sealing rings).Replace antifriction bearings.

Tab. 9 Measures to be taken after prolongedshutdown periods

2. Carry out all steps as for the initial start-up (→ 6.2 Start-up,Page 24).

6.5 Operating the stand-by pump✔ Stand-by pump filled and bled

Operate the stand-by pump at least once a week.

1. Completely open the suction-side fitting.2. Open the pressure-side fitting to the extent that the

stand-by pump reaches its operating temperature and isheated through evenly (→ 6.2.1 Switching on, Page 24).

26 CNH-M series BA-2010.03 460.0019 GB – 550 267

Maintenance

7 Maintenance


Trained service technicians are available for fitting andrepair work. Present a pumped medium certificate (DINsafety data sheet or safety certificate) when requestingservice.

7.1 InspectionsThe inspection intervals depend on the operational strainon the pump.







Do not touch the running pump.Do not carry out any work on the running pump.



1. Check at appropriate intervals:– Adherence to the minimum flow rate– Temperature of antifriction bearings < 80 °C– Normal operating conditions unchanged– top up oil if necessary– Coupling alignment and condition of elastic parts

2. For trouble-free operation, always ensure the following:– No dry running– No leaks– No cavitation– Suction-side gate valves open– Unclogged and clean filters– sufficient pump ingress pressure– No unusual running noises or vibrations– no breaks on magnet coupling– Proper functioning of auxiliary systems

460.0019 GB – 550 267 BA-2010.03 CNH-M series 27

Maintenance

7.2 MaintenanceSleeve bearings are maintenance free.

Service life of the antifriction bearings for operation withinthe permissible operating range: > 2 yearsIntermittent operation, high temperatures, low viscositiesand aggressive ambient and process conditions reduce theservice life of antifriction bearings.







Do not touch the running pump.Do not carry out any work on the running pump.Isolate the motor from its supply voltage and secure itagainst being switched back on again prior to any fitting ormaintenance work.



WARNINGRisk of injury and poisoning due to hazardous or hotpumped liquids!

Use personal protective equipment when carrying out anywork on the pump.Allow the pump to cool down before commencing any work.Make sure the pump is unpressurized.Empty the pump, safely collect the pumped liquid anddispose of it in accordance with environmental rules andrequirements.

7.2.1 Antifriction bearings lubricated with grease

As a precaution, replace antifriction bearings with lifetimelubrication every 2 years (recommended).

7.2.2 Antifriction bearings lubricated with oil1. Change the lubricating oil:

– After the first 300 hours of operation– after every 5000 hours of operation but at least once a

year2. For oil changes, unscrew the plug on the bearing housing

and drain the oil at operating temperature into a suitablecontainer.

3. Refit the plug and fill with lubricatingoil (→ 6.1.3 Lubricating the bearings, Page 23).

7.2.3 Cleaning the pump

NOTEHigh water pressure or spray water can damage bearings!

Do not clean bearing areas with a water or steam jet.

Clean large-scale grime from the pump.

28 CNH-M series BA-2010.03 460.0019 GB – 550 267

Maintenance

7.3 Dismounting







Do not touch the running pump.Do not carry out any work on the running pump.Isolate the motor from its supply voltage and secure itagainst being switched back on again prior to any fitting ormaintenance work.



WARNINGRisk of injury and poisoning due to hazardous or hotpumped liquids!

Use personal protective equipment when carrying out anywork on the pump.Allow the pump to cool down before commencing any work.Make sure the pump is unpressurized.Empty the pump, safely collect the pumped liquid anddispose of it in accordance with environmental rules andrequirements.

NOTEMaterial damage, breakable components!

Dismount ceramic parts on the sleeve bearings andmagnet coupling carefully (do not allow them to hitanything).

WARNINGRisk of injury due to heavy components!

Pay attention to the component weight. Lift and transportheavy components using suitable lifting gear.Set down components safely and secure them againstoverturning or rolling away.

WARNINGRisk of injury during disassembly!

Secure the pressure-side gate valve against accidentalopening.Depressurize the blocking pressure system, if available.Wear protective gloves as components can become verysharp through wear or damage.Remove spring-loaded components carefully (e.g.mechanical seal, tensioned bearing, valves etc.), ascomponents can be ejected by the spring tension.Observe the manufacturer's specifications (e.g. for themotor, coupling, mechanical seal, blocking pressuresystem, cardan shaft, drives, belt drive etc.).

460.0019 GB – 550 267 BA-2010.03 CNH-M series 29

Maintenance

7.3.1 Returning the pump to the manufacturer✔ Pump unpressurized✔ Pump completely empty✔ Electrical connections disconnected and motor secured

against being switched on again✔ Pump cooled down✔ Coupling guard dismounted✔ With coupling with spacer piece: spacer piece removed✔ Auxiliary systems shut down, depressurized and emptied✔ Manometer lines, manometer and holdings dismounted1. Enclose a truthfully and fully completed document of

compliance when returning pumps or components to themanufacturer (→ 9.4 Safety certificate, Page 49).

2. Take necessary measures, depending on the requiredrepair work, as listed in the table below when returning thepump to the manufacturer.

Repairs Measure for return

...at the customer'spremises

Return the defectivecomponent to themanufacturer.

...at themanufacturer'spremises

Flush the pump anddecontaminate it if it wasused for hazardous pumpedliquids.Return the complete pump(not disassembled) to themanufacturer.

...at themanufacturer'spremises forwarranty repairs

Only in the event ofhazardous pumped liquid:flush and decontaminate thepump.Return the complete pump(not disassembled) to themanufacturer.

Tab. 10 Measures for return

7.3.2 Preparations for dismounting✔ Pump unpressurized✔ Pump completely empty, flushed and decontaminated✔ Electrical connections disconnected and motor secured

against being switched on again✔ Pump cooled down✔ Coupling guard dismounted✔ With coupling with spacer piece: spacer piece removed✔ Auxiliary systems shut down, depressurized and emptied✔ Manometer lines, manometer and holdings dismounted

In production, the pumps are constructed to a standardprocess. The insert unit can be removed without removingthe volute casing and piping.If a coupling with spacer piece is used, the motor canremain mounted on the base plate.

When dismounting, observe the following:– Mark the precise orientation and position of all

components before dismounting them.– Dismount components concentrically without canting.– Dismount the pump (→ sectional drawing).

30 CNH-M series BA-2010.03 460.0019 GB – 550 267

Maintenance

7.4 InstallingReinstall the components concentrically, without canting,in accordance with the marks applied.






WARNINGRisk of injury due to heavy components!

Pay attention to the component weight. Lift and transportheavy components using suitable lifting gear.Set down components safely and secure them againstoverturning or rolling away.

WARNINGRisk of injury during disassembly!

Install spring-loaded components carefully (e.g.mechanical seal, tensioned bearing, valves etc.), ascomponents can be ejected by the spring tension.Observe the manufacturer's specifications (e.g. for themotor, coupling, mechanical seal, blocking pressuresystem, cardan shaft, drives, belt drive etc.).

NOTEMaterial damage due to unsuitable components!

Always replace lost or damaged screws with screws of thesame strength (→ 9.2.4 Tightening torques, Page 44).Only replace seals with seals of the same material.

1. Observe the following during the installation:– Replace worn parts with genuine spare parts.– Replace seals, inserting them in such a way that they

are unable to rotate.– Maintain the prescribed tightening torques

(→ 9.2.4 Tightening torques, Page 44).2. Clean all parts (→ 9.2.7 Cleaning agents, Page 44). Do

not remove any markings which have been applied.3. Install the pump (→ sectional drawing).4. Install the pump in the system (→ 5 Setup and connection,

Page 15).

7.5 Ordering spare partsFor trouble-free replacement in the event of faults, werecommend keeping entire insert units or spare pumpsavailable on site.The application guidelines conforming to DIN 24296recommend provisioning for two years of continuous use(→ 9.3 Spare parts for two years of continuous operationaccording to DIN 24296, Page 47).

Have the following information ready to hand whenordering spare parts (→ type plate):– Pump type– Pump number– Year of manufacture– Part number– Designation– Quantity

460.0019 GB – 550 267 BA-2010.03 CNH-M series 31

Troubleshooting

8 Troubleshooting






If malfunctions occur which are not specified in the followingtable or cannot be traced back to the specified causes, pleaseconsult the manufacturer.Possible malfunctions are identified by a number in thefollowing table. This number identifies the respective causeand remedy in the troubleshooting list.

Malfunction Number

Pump not pumping 1

Pumping rate insufficient 2

Pumping rate excessive 3

Pumping pressure insufficient 4

Pumping pressure excessive 5

Pump running roughly 6

Antifriction bearing temperatures too high 7

Pump leaking 8

Excessive motor power uptake 9

Tab. 11 Malfunction/number assignment

Malfunction number

1 2 3 4 5 6 7 8 9

Cause Remedy

X – – – – – – – – Supply/suction pipe and/or pressure pipeclosed by fitting

Open the fitting.

– X – X – – – – – Supply/suction pipe not fully opened Open the fitting.

X X – X – X – – – Supply/suction pipe, pump or suctionstrainer blocked or encrusted

Clean the supply/suction pipe, pumpor suction strainer.

– X – X – X – – – Supply/suction pipe cross-section toonarrow

Increase the cross-section.Remove any encrustations from thesuction pipe.Open the fitting completely.

X – – – – – – – – Transport and sealing cover still in place Remove the transport and sealingcover.Dismount the pump and inspect it fordry-running damage.

32 CNH-M series BA-2010.03 460.0019 GB – 550 267

Troubleshooting

Malfunction number

1 2 3 4 5 6 7 8 9

Cause Remedy

– X – X – X – – – Suction head excessive: NPSHpump largerthan NPSHsystem

Increase pump ingress pressure.Consult the manufacturer.

X – – – – X – – – Supply/suction pipe not bled properly ornot filled up completely

Fill up the pump and/or pipingcompletely and bleed them.

X – – – – X – – – Supply/suction pipe contains air pockets Install the fitting for bleeding.Correct the piping layout.

X X – X – X – – – Air sucked into pump Seal the source of malfunction.

X X – X – X – – – Excessive amount of gas: pump iscavitating

Consult the manufacturer.

– X – X – X – – – Pumped liquid temperature too high:pump is cavitating

Increase pump ingress pressure.Lower the temperature.Consult the manufacturer.

– X – X – – – – X Viscosity or specific gravity of the pumpedliquid outside the range specified for thepump

Consult the manufacturer.

– X – X – – – – – Geodetic differential head and/or pipe flowresistances too high

Remove sediments from the pumpand/or pressure pipe.Install a larger impeller and consult themanufacturer.

– X – – X X – – – Pressure-side fitting not opened wideenough

Open the pressure-side fitting.

X X – X – – – – – Magnetic coupling was torn off Turn off the pump and then turn it backon.

X X – – X X – – – Pressure pipe blocked Clean the pressure pipe.

X X – X – X – – – Pump running in the wrong sense ofrotation

Swap any two phases at the motor.

X X – X – – – – – Motor speed too low Compare the required motor speed withthe specifications on the pump typeplate. Replace the motor, if necessary.Increase the motor speed if speedcontrol is available.

– X – X – X X – – Pump parts worn Replace the worn pump parts.

– – X X – X – – X Pressure-side fitting opened too wide Throttle down at the pressure-sidefitting.Machine the impeller down. Consult themanufacturer and adjust the impellerdiameter.

– – X – – X – – X Geodetic differential head, pipe flowresistances and/or other resistances lowerthan specified

Throttle down the flow rate at thepressure-side fitting. Observe theminimum flow rate.Machine the impeller down. Consult themanufacturer and adjust the impellerdiameter.

– – X – X – – – – Viscosity lower than expected Machine the impeller down. Consult themanufacturer and adjust the impellerdiameter.

460.0019 GB – 550 267 BA-2010.03 CNH-M series 33

Troubleshooting

Malfunction number

1 2 3 4 5 6 7 8 9

Cause Remedy

– – X – X X X – X Motor speed too high Compare the required motor speed withthe specifications on the pump typeplate. Replace the motor, if necessary.Reduce the motor speed if speedcontrol is available.

– – X – X X – – X Impeller diameter too large Throttle down the flow rate at thepressure-side fitting. Observe theminimum flow rate.Machine the impeller down. Consult themanufacturer and adjust the impellerdiameter.

X X – X – X – – – Impeller out of balance or blocked Dismount the pump and inspect it fordry-running damage.Clean the impeller.

– X – X – X – – – Hydraulic parts of the pump dirty, clottedor encrusted

Dismount the pump.Clean the parts.

– – – – – X X – X Defective antifriction bearing in bearingbracket

Replace the antifriction bearing.

– – – – – X X – X Sleeve bearing defective Replace sleeve bearing.

– – – – – – X – X Defective antifriction bearing in motor Replace the antifriction bearing(→ manufacturer's specifications).

– – – – – – X – – Lubricant: excessive, insufficient orunsuitable

Reduce, top up or replace the lubricant.

– – – – – – – X – Tie bolts not tightened properly Tighten the tie bolts.

– – – – – – – X – Housing seal defective Replace the housing seal.

– – – – – – – X – Shaft sleeve is infiltrated Replace the shaft sleeve and/or O-ring.

– – – – – X X X X Pump distorted Check the pipe connections and pumpattachment.Check the coupling alignment.Check the attachment of the supportfoot.

– – – – – X X – – Coupling not aligned properly Align the coupling.

– – – – – X – – – Coupling elements worn Replace the coupling units and realignthem.

– X – X – X – – X Motor running on 2 phases Check the fuse and replace it ifnecessary.Check the cable connections andinsulation.

Tab. 12 Troubleshooting list

34 CNH-M series BA-2010.03 460.0019 GB – 550 267

Appendix

9 Appendix

9.1 Sectional drawings

9.1.1 Auxiliary connections

Abbreviation Connection

FD1 Emptying the pump casing

FD2 Emptying the separating can

FV1 Bleeding the separating can

GD1 Emptying the bearing bracket

GF1 Filling the bearing bracket

GF2 Filling the oil level regulator

GV1 Bleeding the bearing bracket

HI1 Ingress heating (steam)

HI4 Ingress heating (liquid)

HO2 Egress heating (liquid)

HO3 Egress heating (steam)

LM1 Monitoring leaks

PM2 Manometer

Tab. 13 Connection designation abbreviations

9.1.2 Part numbers and designations

Part no. Designation

102.1 Volute casing

161.1 Housing cover

183.1 Support foot

210.1 Shaft

213.1 Top shaft

230.1 Impeller

314.1 Thrust bearing



321.1 Ball bearing

321.2 Ball bearing

330.1 Bearing bracket

360.1 Bearing cover

360.5 Bearing cover

400.1 Seal

400.4 Seal

400.5 Seal

402.5 Seal


411.1 Seal ring

411.2 Seal ring

411.6 Seal ring

411.7 Seal ring

411.20 Seal ring

411.21 Seal ring

411.22 Seal ring

411.26 Seal ring

420.1 Shaft seal ring

420.2 Shaft seal ring

504.5 Spacer ring

506.2 Retaining ring

506.3 Retaining ring

509.3 Intermediate ring

511.1 Centering ring

515.1 Tension ring

515.2 Tension ring

515.3 Tension ring

515.4 Tension ring

515.5 Tension ring

515.6 Tension ring

515.7 Tension ring

529.1 Bearing sleeve

529.2 Bearing sleeve

545.1 Bearing bush

545.2 Bearing bush

550.106 Slotted disc

550.107 Disc

550.20 Disc

550.21 Disc

550.22 Disc

550.23 Disc

550.24 Disc

550.25 Disc

551.2 Spacer ring

560.1 Blind rivet

638.1 Oil level regulator

460.0019 GB – 550 267 BA-2010.03 CNH-M series 35

Appendix


672.1 Bleeding

681.106 Coupling guard

681.107 Equalizing pipe

700.1 Pipe

731.2 Screwed connection

731.14 Screwed connection

817.1 Separating can

818.2 Rotor

818.3 Rotor

901.1 Hexagon head bolt

901.20 Hexagon head bolt

902.1 Stud bolt

902.101 Stud bolt

902.4 Stud bolt

902.5 Stud bolt

903.1 Screw plug

903.2 Screw plug

903.4 Screw plug

903.20 Screw plug

903.21 Screw plug

903.22 Screw plug

914.4 Socket head cap screw





920.1 Hexagon nut

920.106 Hexagon nut

920.107 Hexagon nut

920.4 Hexagon nut

920.5 Hexagon nut

921.1 Hexagon nut

921.2 Hexagon nut

930.1 Spring ring

930.4 Spring ring

932.1 Snap ring

932.2 Snap ring

932.3 Snap ring

940.1 Shaft key


940.2 Shaft key

940.3 Shaft key

950.1 Balance disc

970.1 Label

Tab. 14 Designation of components accordingto part numbers

36 CNH-M series BA-2010.03 460.0019 GB – 550 267

Appendix

9.1.3 Overview sectional drawing

Fig. 17 CNH-M with oil lubrication, sizes on first and second bearing brackets

460.0019 GB – 550 267 BA-2010.03 CNH-M series 37

Appendix

Fig. 18 CNH-M with oil lubrication, sizes on third bearing bracket

38 CNH-M series BA-2010.03 460.0019 GB – 550 267

Appendix

Fig. 19 CNH-M with grease lubrication, sizes on first and second bearing brackets

460.0019 GB – 550 267 BA-2010.03 CNH-M series 39

Appendix

Fig. 20 CNH-M with grease lubrication, sizes on third bearing bracket

40 CNH-M series BA-2010.03 460.0019 GB – 550 267

Appendix

Fig. 21 CNH-M with heating

460.0019 GB – 550 267 BA-2010.03 CNH-M series 41

Appendix

Fig. 22 Double thrust bearing on first and second bearing bracket (only for sizes 65-160 and 80-160)

9.1.4 Coupling guard

max. 8 mm max. 8 mm

Fig. 23 Coupling guard on base plate versions

42 CNH-M series BA-2010.03 460.0019 GB – 550 267

Appendix

9.2 Technical specificationsMore technical specifications (→ order data sheet).

9.2.1 Ambient conditionsOperation under any other ambient conditions should beagreed with the manufacturer.

Relative humidity [%]Temperature[°C] Long-term Short-term

Setupheightabove sealevel [m]

–20 to +40 ≤ 85 ≤ 100 ≤ 1000

Tab. 15 Ambient conditions

9.2.2 Parameters for auxiliary systems

Heated housing

Temperature [°C]Pressure[bar] with saturated

steamwith heat-transferoil

≤ 20 ≤ 210 ≤ 300

Tab. 16 Operating parameters for heating chamber

9.2.3 Sound pressure levels

Measuring conditions:

• Distance to the pump: 1 m

• Operation: cavitation-free

• Motor: IEC standard motor

• Tolerance ±3 dB

Lower-noise versions of the motors are available if theexpected noise levels exceed the permissible limits.

Sound pressure level [dB] for pumpwith motor at speed [rpm]

Nominal motorpower PM [kW]

1450 1750 2900 3500

1.5 58 58.5 63 64

2.2 60 60.5 66 67

3.0 62 62.5 68 69

4.0 63 63.5 69 70

5.5 65 65.5 71 72

7.5 66 66.5 72 73

11.0 68 68.5 74 75

15.0 69 69.5 75 76

18.5 70 70.5 76 77

22.0 71 71.5 77 78

30.0 72 72.5 78 79

37.0 73 73.5 79 80

45.0 74 74.5 80 81

55.0 75 75.5 80 81

75.0 76 76.5 81 82

90.0 76 76.5 82 83

110.0 77 77.5 82 83

132.0 78 78.5 83 84

160.0 79 79.5 84 85

200.0 80 80.5 85 86

Tab. 17 Sound pressure levels

460.0019 GB – 550 267 BA-2010.03 CNH-M series 43

Appendix

9.2.4 Tightening torques

Part no. Thread size Quality Tighteningtorque [Nm]

901.1 M12 4.6 40

901.20 M10M12 A4 30

50

914.20 M8M10 A4 19

37

914.22 M6M8 8.8 11

27

914.23 M6M8 A4 8

19

914.24

M8M8M10M10

8.8A4-708.8A4-70

22154229

914.4 M8 8.8 26

920.1 M10M12 A4 37

64

920.4

M12M16M20M24

A4-80/8.8

67146276397

920.5M16M20M24

A4-80/8.8146276397

921.1 M20 x 1.5M24 x 1.5 A4 124

175

921.2 M20 x 1.5M24 x 1.5 A4 124

175

Tab. 18 Tightening torques

9.2.5 Lubricants

Lubricant quality: high quality, additive treated mineral oilaccording to DIN 51517 – CL 100 or to ISO 3448 – VG 100(recommended).

Size of the bearing bracket approx. oil qty. [l]

1 0.4

2 0.7

3 0.7

Tab. 19 Minimum oil lubrication quantities

9.2.6 PreservativesUse Valvoline preservatives or similar (recommended).

Type of storage Storageduration[months]

Preservativeinside/outside

Renew[months]inside/outside

< 6 Tectyl 511 M –

6–12 Tectyl 511 M –

In closed, dry anddust-free room

> 12 Tectyl 506 EH 48/48

< 6 Tectyl 542 –

6–12 Tectyl 542/Tectyl 506 EH

–

In open air, centralEuropean climate

> 12 Tectyl 506 EH 48/18

< 6 Tectyl 542/Tectyl 506 EH

–

6–12 Tectyl 542/Tectyl 506 EH

–

In open air,tropical climate,aggressiveindustrialatmosphere orclose to sea > 12 Tectyl 506 EH 48/12

Tab. 20 Valvoline preservatives

9.2.7 Cleaning agents

Application area Cleaning agents

Foodstuffs and drinkingwater sector

E.g. spirit, Ritzol 155, strongalkaline soapy solution,steam jet (for single partsonly)

Other Benzine, wax solvents,diesel, paraffin, alkalinecleaners

Tab. 21 Cleaning agents

44 CNH-M series BA-2010.03 460.0019 GB – 550 267

Appendix

9.2.8 Height offset for motor alignment withadjusting screw

Heightadjustment[mm]

Rotationangle ofspindle [°]

Setting aid

0.02 5 –

0.04 10 –

0.06 15 –

0.08 20 –

0.10 25 –

0.13 30 Shaft key surface to point ofhexagon

0.15 35 –

0.17 40 –

0.19 45 –

0.21 50 –

0.23 55 –

0.25 60 Shaft key surface to shaftkey surface

0.27 65 –

0.29 70 –

0.31 75 –

0.33 80 –

0.35 85 –

0.38 90 1/4 turn

0.40 95 –

0.42 100 –

0.44 105 –

0.46 110 –

0.48 115 –

0.50 120 –

0.52 125 –

0.54 130 –

0.56 135 –

0.58 140 –

0.60 145 –

0.63 150 –

0.65 155 –

0.67 160 –

0.69 165 –

0.71 170 –

0.73 175 –

Heightadjustment[mm]

Rotationangle ofspindle [°]

Setting aid

0.75 180 1/2 turn

0.77 185 –

0.79 190 –

0.81 195 –

0.83 200 –

0.85 205 –

0.88 210 –

0.90 215 –

0.92 220 –

0.94 225 –

0.96 230 –

0.98 235 –

1.00 240 –

1.02 245 –

1.04 250 –

1.06 255 –

1.08 260 –

1.10 265 –

1.13 270 3/4 turn

1.15 275 –

1.17 280 –

1.19 285 –

1.21 290 –

1.23 295 –

1.25 300 –

1.27 305 –

1.29 310 –

1.31 315 –

1.33 320 –

1.35 325 –

1.38 330 –

1.40 335 –

1.42 340 –

1.44 345 –

1.46 350 –

1.48 355 –

1.50 360 1 full turn

Tab. 22 Height setting at the adjusting screw

460.0019 GB – 550 267 BA-2010.03 CNH-M series 45

Appendix

9.2.9 Flange loads according to ISO 5199

Values for base plate

Not filled withconcrete

Filled with concrete

Pumpsize

Fv max(z)[N]

Fh max(x, y)[N]

Mt max[Nm]

Fv max(z)[N]

Fh max(x, y)[N]

Mt max[Nm]

20–160 1300 1000 200 3000 1400 270

25–160 2000 1400 400 4500 3100 850

25–200 1900 1400 350 4400 2900 800

32–160 2300 1600 500 4600 3200 1000

32–200 2100 1500 450 4500 3100 900

32–250 2500 1700 550 4800 3450 1100

40–160 2700 1800 650 5000 3600 1250

40–200 2400 1700 550 4800 3400 1100

40–250 2800 1900 700 5200 3800 1350

40–315 2900 2000 700 5300 3850 1400

50–160 3200 2100 800 5500 4100 1650

50–200 2800 1900 700 5200 3800 1350

50–250 3200 2200 850 5600 4250 1650

50–315 3300 2200 850 5700 4300 1700

65–160 4200 2800 1200 6700 5200 2400

65–200 4500 2900 1300 7000 5500 2600

65–250 4000 2600 1100 6400 5000 2250

65–315 4700 3100 1400 7300 5800 2850

65–400 3200 2200 850 5600 4100 1600

80–160 5300 3400 1650 8000 6400 3350

80–200 5600 3600 1700 8300 6700 3600

80–250 4900 3200 1400 7500 5900 3000

80–315 5900 3800 1850 8800 7100 3900

80–400 5400 3500 1650 8100 6500 3400

100–160 5000 3200 1500 7600 6000 3050

100–200 7000 4400 2300 10300 8700 5000

100–250 7900 5000 2700 11600 10300 6000

100–315 7200 4600 2400 10600 9100 5250

100–400 7200 4600 2350 10500 9000 5200

125–200 7300 4600 2400 10900 9500 5200

125–250 9700 6100 3450 14000 12800 7300

125–315 8500 5400 2950 12500 11400 6700

125–400 8600 5400 2950 12700 11600 6850

150–200 12600 8000 4800 17700 16600 9600

Values for base plate

Not filled withconcrete

Filled with concrete

Pumpsize

Fv max(z)[N]

Fh max(x, y)[N]

Mt max[Nm]

Fv max(z)[N]

Fh max(x, y)[N]

Mt max[Nm]

150–250 12800 8000 4850 17800 16700 9700

150–315 13200 8300 5050 18400 17300 10100

150–400 11400 7200 4200 16200 15000 8700

150–500 12100 7600 4550 17000 15900 9200

200–250 16600 10600 6600 22400 21400 12600

200–315 17500 11200 7000 23400 22400 13200

200–400 16000 10100 6300 21700 20700 12200

200–500 16700 10700 6650 22500 21500 12700

250–315 19900 13100 7350 25500 24500 13900

250–400 19800 13100 7400 25400 24400 14000

Tab. 23 Flange loads

z

yx

yx

z

2

1

Fig. 24 Flange loads at the pump

1 Outlet flange2 Suction branch

46 CNH-M series BA-2010.03 460.0019 GB – 550 267

Appendix

1

1,0

0,9

0,8

0,7

0,6

0,5

0,4

0,3

0,2

0,1

0 50 100 150 200 250 300 350 400 450[°C]

23

4

M

Fig. 25 Correction factor M and operating temperature

1 Non-alloyed steel cast2 Austenitic steel cast3 Spheroidal iron GGG 40.34 Gray cast iron GG 25

9.3 Spare parts for two years ofcontinuous operation accordingto DIN 24296

Number of identical pumps (including stand-by pumps)

2 3 4 5 6 or 7 8 or 9 > 9

Part no. Part designation

Set/quantity of spare parts

210.1921.1921.2930.1930.4940.1940.3

Pump shaftShaft nutShaft nutSpring ringSpring ringShaft keyShaft key

1) 1 1 2 2 2 3 30 %

230.1 Impeller 1 1 1 2 2 3 30 %

314.1515.5550.24

Thrust bearingTension ringDisc

1 1 2 2 3 4 50 %

314.24)506.3

Thrust bearingRetaining ring 1 1 2 2 3 4 50 %

314.35)515.7550.20

Thrust bearingTension ringDisc

1 1 2 2 3 4 50 %

321.1321.2 Ball bearing 1 1 2 2 3 4 50 %

460.0019 GB – 550 267 BA-2010.03 CNH-M series 47

Appendix

Number of identical pumps (including stand-by pumps)

2 3 4 5 6 or 7 8 or 9 > 9

Part no. Part designation

Set/quantity of spare parts

330.1213.1321.1321.2551.2932.1932.2940.2950.1

Bearing bracketTop shaftBall bearingBall bearingSupporting washerSnap ringSnap ringShaft keyBalance disc

1) – – – – – 1 2

420.12)420.2 Shaft seal ring 2 3 4 5 6 7 90 %

50 %

529.1515.2550.20550.21

Bearing sleeveTension ringDiscDisc

1 1 2 2 2 3 30 %

529.2515.4550.22

Bearing sleeveTension ringDisc

1 1 2 2 2 3 30 %

545.1515.1

Bearing bushTension ring 1 1 2 2 2 3 30 %

545.2515.3

Bearing bushTension ring 1 1 2 2 2 3 30 %

817.1411.26

Separating canSeal ring 1 1 2 2 2 3 30 %

400.1400.4400.5402.5

Seals 1) 4 6 8 8 9 12 150 %

411.1411.2411.62)411.7411.20411.21411.22411.26

Seal ring 1) 4 6 8 8 9 12 150 %

Tab. 24 Spare parts for two years of continuous operation1) Can be purchased as a mechanical unit (BG) or as a sales unit (VG).2) Only for bearing brackets with oil lubrication3) Only for bearing brackets with grease lubrication4) Only for versions without double thrust bearings5) Only for versions with double thrust bearings

48 CNH-M series BA-2010.03 460.0019 GB – 550 267

Appendix

9.4 Safety certificatePlease copy this document and send it together with thepump.

The pump and accessories given for inspection / repair together with the safety certificate by us, the undersigned,

Type: Delivery date:

Part no.: Order no.:

Reason for inspection / repair:

was not used in areas dangerous to health or the environment.

had the following field of application:

and came into contact with substances that must be labeled or were contaminated.

Last pumped liquid:

The pump has been carefully emptied and cleaned on the outside and inside prior to delivery or provision.

Special safety precautions are not necessary for subsequent use.

The following safety precautions regarding rinsing liquids, liquid residue and disposal are necessary:

If the pump was used with critical liquids, please make sure to also send a safety data sheet withthe package.

We hereby declare that the information given is correct and complete, and that dispatch was made according to legalrequirements.

Company /address:

Phone:

Fax:

Customer no.: ____ ____ ____ ____ ____ ____ ____

Issuer name:(Capital letters) Position:

Date: Company stamp / signature:Tab. 25 Safety certificate

460.0019 GB – 550 267 BA-2010.03 CNH-M series 49

Appendix

9.5 Declaration of conformity accordingto EC machine directives

The following declaration does not contain serial numbersor signatures. The original declaration is delivered with therespective pump.

EC declaration of conformity according tomachine directive, appendix II AWe,Allweiler AG, Postfach 1140, 78301 Radolfzell, Germany; Tel. +49 (0)7732 86-0, Fax. +49 (0)7732 86-436,hereby declare that the following machine adheres to the relevant EC directives detailed below:

ID no.

Designation NT

Equipment no.

Order no.

EC directives:

• Machine directive (2006/42/EC)

• Low-voltage directive (2006/95/EC)

• EMC directive (2004/108/EC)

Applicable harmonized norms:

• EN 809:1998

• EN ISO 12100-1:2003

• EN ISO 12100-2:2003

• EN 14121-1:2007

Person authorized to compile thetechnical file

Allweiler AGAllweilerstr. 178315 Radolfzell

Date: 11.26.2008 Company stamp / signature:

Head of Development/Construction

Company stamp / signature:

Head of Quality

Tab. 26 Declaration of conformity according to EC machine directives

50 CNH-M series BA-2010.03 460.0019 GB – 550 267

Appendix

460.0019 GB – 550 267 BA-2010.03 CNH-M series 51

Appendix

52 CNH-M series BA-2010.03 460.0019 GB – 550 267

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