Vertical multi-stage centrifugal pumps - DP-Pumps

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Vertical multi-stage centrifugal pumps Installation and operating instructions series: DPV and DPLHS

Table of Contents 1

Manual Introduction 1.1 1.2

2

Identification, service and technical support 2.1 2.2 2.3 2.4

3

8

Setting up the pump............................................................................................................................. 19 Mounting a motor on the pump ............................................................................................................ 20 Electrical installation ............................................................................................................................ 23 Commissioning .................................................................................................................................... 24

Operation 8.1

9

Transport.............................................................................................................................................. 18 Storage................................................................................................................................................. 18

Installation instructions 7.1 7.2 7.3 7.4

2

Model key..............................................................................................................................................11 Description of the product .....................................................................................................................11 Ecodesign .............................................................................................................................................11 Intended use ........................................................................................................................................ 12 Operation ............................................................................................................................................. 12 Measuring, draining and venting.......................................................................................................... 13 Modular selection................................................................................................................................. 13 Working range...................................................................................................................................... 13 Explosion safety................................................................................................................................... 15

Transport 6.1 6.2

7

General .................................................................................................................................................. 9 Users...................................................................................................................................................... 9 Safety provisions.................................................................................................................................... 9 Safety precautions ................................................................................................................................. 9 Environmental aspects......................................................................................................................... 10

Pump Introduction 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9

6

Terms of warranty .................................................................................................................................. 8

Safety and environment 4.1 4.2 4.3 4.4 4.5

5

Obtaining data and information from DPV / DPLHS 6 pumps................................................................ 5 Seal codes ............................................................................................................................................. 6 Current ................................................................................................................................................... 6 Supplementary documentation .............................................................................................................. 7

Warranty 3.1

4

Preface................................................................................................................................................... 4 Icons and symbols ................................................................................................................................. 4

Operation ............................................................................................................................................. 26

Maintenance 9.1 9.2 9.3 9.4

Introduction .......................................................................................................................................... 27 Lubrication ........................................................................................................................................... 27 Maintaining the pump for an extended period of non-operation .......................................................... 27 Torques of coupling shell - pos 914.01 ................................................................................................ 27

10 Failures 10.1 Failure table ......................................................................................................................................... 28

11 Annexes 11.1 EC declaration of conformity................................................................................................................ 30

3

1

Manual Introduction

1.1

Preface

This manual contains important information for reliable, proper and efficient operation. Compliance with the operating instructions is of vital importance to ensure reliability and a long service life of the product and to avoid any risks. The first chapters contain information about this manual and safety in general. The following chapters provide information about normal use, installation, maintenance and repairs of the product. The annex contains the declaration(s) of conformity.

• • • •

1.2

Make yourself familiar with the content. Accurately follow the directions and instructions. Never change the sequence of the operations to be carried out. Keep this manual or a copy of it together with the logbook in a fixed place near the product which can be accessed by all personnel.

Icons and symbols

In this manual and in all accompanying documentation the following icons and symbols are used. WARNING Danger of electric Voltage. Safety sign according to IEC 417 - 5036 WARNING Operations or procedures, if carried out without caution, may cause personal injury or damage to the product. General hazard sign according to ISO 7000-0434

4

ATTENTION Is used to introduce safety instructions whose non-observance may lead to damage to the product and its functions. ENVIRONMENTAL INSTRUCTION Remarks with respect to the environment.

READ THE (SUPPLEMENTARY) DOCUMENTATION Read the installation and operating instructions.

2

Identification, service and technical support

2.1

Obtaining data and information from DPV / DPLHS 6 pumps

ID3481

DPVSF 40/10-2 B

dp pumps

Frame 200(30.5kW)50Hz 40.8 m3/h / 195 m 2960rpm 75.1% (MEI>=0.70) Code 14 E PN25 -20/+120 oC PN16/25 NW80

ID SN PO

290414352098E 01/2017 1234567-123 600149091

Kalkovenweg 13 Alphen aan den Rijn NL www.dp-pum ps.com

Figure 2: Example: Pump without factory mounted motor

3481

Q/H n.fix Eff. Seal P/T Conn.

Made in NL

The name plate indicates the type series / size, main operating data and identification number. Please quote this information in all queries and/or repeat orders. Particularly when ordering spare parts. If you need any additional information or instructions exceeding the scope of this manual or in case of damage, please contact DP-Pumps nearest customer service centre.

H ID3297

DPVSF 40/10-2 B

dp pumps

37kW(30.5kW)50Hz

40.8 m3/h / 195 m 2960rpm 75.1% (MEI>=0.70) Code 14 E PN25 -20/+120 oC PN16/25 NW80

ID SN PO

290414352098 V 01/2017 1234567-123 600149091

Made in NL

Figure 1: Example: Pump with motor

Figure 3: Duty point

3060

Kalkovenweg 13 Alphen aan den Rijn NL www.dp-pum ps.com

3297

Q/H n.fix Eff. Seal P/T Conn.

Table 1: Description nameplate Indication

Meaning

DPVSF 40/10-2 B

Model key (design version B)

37 kW (30.5 kW)

Installed motor power (required power @ max. curve)1 2

Frame 200

Motor frame size

50 Hz 3

Nominal frequency 3

Q

40 m /h

Optimum capacity running at fixed speed (see fig. 3 Duty point)

H

195 m

Optimum head running at fixed speed (see fig. 3 Duty point)

n fix.

2960 rpm

Rotation speed indication at which Q/H are given

Eff.

75.1% (MEI>=0.70)

Efficiency (Minimum Efficiency Index)

Seal.

Code 23 E

Mechanical Seal Surface Code, see table 8 Seal code

E

Easy access

Seal construction type: F = Fixed E = Easy Access C = Cartridge

P/T

PN25 -20/+120 °C

Maximum pressure at mentioned temperature range4

Conn.

PN16/25 NW80

Pressure Class connection and connection size

ID

290414352098V

Pump ID

SN

WW / YYYY 1234567-123

Production week/year and production serial number > as built file

PO

XXXXXXXXX

Purchase order number

5

1. 2.

For pumps without a factory mounted motor: Frame size. When the installed motor power is less than the required power, the pump is limited in it's operating range. Consult your sales representative for details.

3.

Optimum capacity of the hydraulics, restricted operating range (note 2.) not taken into account.

4.

At lower pressure, a higher temperature is allowed (please consult your supplier).

The following address data are available for service and technical support: DP-Pumps service department Kalkovenweg 13 2401 LJ Alphen a/d Rijn The Netherlands

2.2

Tel: +31 172 488388 Fax: +31 172 468930 Internet: www.dp-pumps.com E-mail: [email protected]

Seal codes

Table 2: Material code shaft seal Code acc. to EN 12756

Description

Material

B Q1 Q6 U3 eCarb-B

Spring loaded ring

Carbon graphite Silicon carbide

Ca SiC

Note Resin impregnated Sintered pressureless

Tungsten carbide

TuC

CrNiMo-binder

A B Q1 Q6 U3 V eSic-Q7

Seat ring

Carbon graphite Carbon graphite Silicon carbide

Ca Ca SiC

Antimony impregnated Resin impregnated Sintered pressureless

Tungsten carbide Al-oxide

TuC ALO

CrNiMo-binder >99%

E P V X4

Elastomers

EPDM NBR FPM HNBR

EPDM NBR FPM HNBR

Ethylene propylene rubber Nitrile-butadiene-rubber Fluor carbon rubber Hydrogenated nitrile rubber

G F

Spring

CrNiMo steel CrNi steel

G F

Other metal parts

CrNiMo steel CrNi steel

Source 20110262-K

Information about seal combinations, types, pressure and temperature see: table 8 Seal code

6

2.3

Current

2.3.1

Nominal current DPV

The nominal allowable current of the motor is stated on the motor plate. This shows the nominal working range of the motor and can be used to protect the motor. Measuring the actual current of the pump during operation can be used to pre-set the motor protection switch to protect the pump/motor combination.

This current value can also be used to determine the proper electrical equipment such as variable frequency drive, main switch, wiring diameter etc. WARNING Not only the motor, but also the pump has to be protected in its application.

2.3.2

Maximum current DPLHS 6

The maximum allowable current of the motor is mentioned as I.max. on the motor plate. This maximum allowable current shows the maximum working range of the motor and can be used to protect the motor. WARNING Be careful in using it this way, because, not only the motor, but also the pump has to be protected in its application. On the pump plate (sleeve sticker) this "required motor current" can be mentioned and it can be used to pre-set the motor protection switch to protect the pump/motor combination. This current value can also be used to determine the proper electrical equipment such as variable frequency drive, main switch, wiring diameter etc.

2.4

Supplementary documentation

Apart from this manual, the documentation given below is also available: Table 3: Supplementary documentation Document

Code

General terms of delivery

119 / 1998

DPV Technical Data 50 Hz Version B

97004455

Technical Data 60 Hz Version B

97004456

DPLHS Technical Data 50/60 Hz

97004434

See also www.dp-pumps.com

7

3

Warranty

3.1

Terms of warranty

The warranty period is settled by the terms of your contract or at least by the general terms and conditions of sales. ATTENTION Modifications or alterations of the product supplied are only permitted after consultation with the manufacturer. Original spare parts and accessories authorized by the manufacturer ensure safety. The use of other parts can invalidate any liability of the manufacturer for consequential damage. ATTENTION The warranty relating to the operating reliability and safety of the product supplied is only valid if the product is used in accordance with its designated use as described in the following sections of this manual. The limits stated in the data sheet must not be exceeded under any circumstances. The warranty becomes invalid if one or more of the points below occur. • The buyer makes modifications himself. • The buyer carries out repairs himself or has these carried out by a third party. • The product has been handled or maintained improperly. • The product has non original DP-Pumps spare parts fitted. DP-Pumps repairs defects under warranty when:

• 8

They are caused by flaws in the design, the material or the production. • They are reported within the warranty period. Other terms of warranty have been included in the general terms of delivery, which are available upon request.

4

Safety and environment

4.1

General

This DP-Pumps product has been developed using state-of-the-art technology and is manufactured with utmost care and is subject to continuous quality control. DP-Pumps does not accept any liability for damage or injury caused by not following the directions and instructions in this manual or by carelessness during the installation, use or maintenance of the product. Non-compliance with the safety instructions can jeopardize the safety of personnel, the environment and the product itself. Non-compliance with these safety instructions will also lead to forfeiture of any and all rights to claims for damages. Non-compliance can result in:

• • • • •

failure of important pump/system functions, failure of prescribed maintenance or service, injury caused by electrical, mechanical and chemical effects, leakage to the environment of hazardous substances, explosions.

Depending on the application, extra safety measures may be required. Contact DP-Pumps if a potential danger arises during use. ATTENTION The owner of the product is responsible for compliance with the local safety regulations and internal company guidelines. ATTENTION Not only must the general safety instructions laid down in this chapter on "Safety" be complied with, but also the safety instructions outlined under specific headings.

4.2

Users

All personnel involved in the operation, maintenance, inspection and installation of the product must be fully qualified to carry out the work involved and be aware of all applicable responsibilities, authorisations and supervisions. If the personnel in question is not in

possession of the required know-how, appropriate training and instruction must be provided. The operator may require the manufacturer/supplier to provide sufficient training and/or instructions. The operator is responsible for ensuring that the contents of the operating instructions are fully understood by the responsible personnel.

4.3

Safety provisions

The product has been designed with the greatest possible care. Original parts and accessories meet the safety regulations. Modifications in the construction or the use of non-original parts may lead to a safety risk. ATTENTION Make sure that the product operates within its working range. Only then the product performance is guaranteed.

4.3.1 Labels on the product The icons, warnings and instructions applied to the product are part of the safety provisions. The labels may not be removed or covered. Labels must remain legible during the entire life of the product. Replace damaged labels immediately.

4.4

Safety precautions

4.4.1 During normal use • For questions regarding the power supply contact the local electricity company. • Isolate possible hot parts to avoid injury through direct contact. • For your safety always assemble undeformed coupling guards (when applicable) before putting the pump into use. • Always close the terminal box of the motor. • Always close the control panel where applicable

9

4.4.2

During installation, maintenance and repair

Only authorised personnel may install, maintain and inspect the product and repair electrical components. Observe the local safety regulations. WARNING Before proceeding with any installation, maintenance or repair, disconnect the power supply and secure this disconnection. WARNING Surfaces of a pump can be hot after continuous or intermittent operation. WARNING Secure the area before starting a pump to avoid hazardous situations with rotating parts. WARNING Take utmost care when handling dangerous liquids. Avoid danger to persons or the environment when conducting repairs, draining liquids or venting. It is strongly recommended to place a leakage tray under the pump. WARNING Immediately after completing the work, all safety-relevant and protective devices must be re-installed and / or reactivated. WARNING Please observe all instructions set out in the chapter "Commissioning" before returning the product to service.

4.5

10

Environmental aspects

4.5.1 General The products of DP-Pumps are designed to function in an environmentally friendly way during their entire lifetime. Therefore, when applicable, always use biodegradable lubricants for maintenance.

ENVIRONMENTAL INSTRUCTION Always act according to the laws, bylaws regulations and instructions with respect to health, safety and the environment.

4.5.2 Dismantling The owner is responsible for the dismantling and environmentally friendly disposal of the product. ENVIRONMENTAL INSTRUCTION Ask at the local government about the re-use or the environmentally friendly processing of discarded materials.

5

Pump Introduction

5.1

Model key

Table 4: Model key Example DP VS Label

F 40 /10

-L B

DP

Material/Construction

Product Label VC

Cast Iron pump foot and top bracket hydr. 1.4301 / AISI 304

V

All wetted parts Stainless Steel 1.4301 / AISI 304

VM

All wetted parts Stainless Steel 1.4301 / AISI 304 with closed coupled motor

VS Connections

All wetted parts Stainless Steel 1.4401 / AISI 316 E

Male thread (with non-return valve insert) Oval flange with female thread

Size

F

Round flange

V

Victaulic connections

T

Tri-clamp connections Size (Capacity in m3/h at Qopt)

40

Stages

/10

Number of stages

/10

-2

Number of stages of which one stage with reduced head

/10

-L

Number of stages of which the first stage has a “Low NPSHr” impeller B Design version B

DP LHS Label

6

-200

DP LHS

Vertical pump in superior grade AISI 316 (1.4401) 40 Bar

Connections

Round flanges DIN or ASME Size (Capacity in m3/h at Qopt)

6 -200

Number of stages (x10) Design version

5.2

Description of the product

The vertical, single or multi stage centrifugal pump series are designed for pumping clean, or slightly aggressive, watery mediums. Suction and discharge connections of the pump are in-line, making the pump easy to install. The hydraulic assembly is driven by an electric motor. All hydraulic parts of the pump are made of stainless steel.

5.3

Ecodesign

Product information according to Regulation 547/ 2012 and Directive 2009/125/EC "Ecodesign Directieve" (water pumps with maximum shaft power rating of 150 kW, applies only to water pumps marked with the Minimum Efficiency Index MEI, see pump nameplate):

11

• • • • • •



• •

5.4

Minimum Efficiency Index: See nameplate, legend for nameplate. See table 1 Description nameplate. The reference value MEI of a water pump with the best efficiency is = 0.70. Year built: See nameplate, legend for nameplate. See table1 Description nameplate. Manufacturer's name or trademark, official registration number and place of production: See manual or order documentation. Information about type and size of the item: See table 1 Description nameplate. Performance curves of the pump, including efficiency characteristics: See documented curve. The efficiency of a pump with a corrected impeller is usually lower than that of a pump impeller with a full diameter. A pump with a corrected impeller is adapted to a certain duty point, thereby reducing the energy consumption. Minimum Efficiency Index (MEI) refers to the full impeller diameter. The operation of this water pump at different operating points can be more efficient and more economical when it is controlled, for example using a variable speed controller which adjusts the pump operation to the system. Information for disassembly, recycling or disposal after the final shutdown: See sub chapter 4.5.2 Dismantling. Information about the efficiency reference value or MEI = 0.7 (0.4) benchmark index for the pump on the basis of the pattern in the picture, please visit: http://www.europump.org/efficiencycharts.

The Intended use as laid down in ISO 12100:2010 is the use for which the technical product is intended according to the specifications of the manufacturer. The use of the product has been described in the sales brochure and in the user manual. Always observe the instructions given in the user manual. When in doubt the product must be used as becomes evident from its construction, version and function.

5.5

Operation

ID3027

G

Intended use B

The pumps DPV are suited for the transport and increase of pressure of cold and hot water without wear to parts when used within the indicated working range. The transport of liquids with a different viscosity or density than water is possible as well. Please take into account the possible adjusted motor power which might be required for this. Ask DPPumps or your distributor for advice. 12

G

Any other or further use of the pump is not in conformity with its intended use. DP-Pumps does not accept any liability for any damage or injury that results from this. The pump is produced in accordance with the current standards and guidelines. Use the pump only in a perfect technical state, in conformance with the intended use described below.

C

A

D

E

Figure 4: DPVF 40

F

20080190-A/27022008



The rotating impeller causes the pressure at the inlet of the impeller to drop. This decrease in pressure creates the flow through the suction connection (A). Every stage (B) consists of an impeller and a diffusor. The capacity of the pump is determined by the size of the passageway of the stage. The pressure of the stage is determined by the diameter of the impeller.

Because of the modular type of construction it is possible to choose the number of impellers most suited to the required duty point. After leaving the last impeller the medium flows between the pump stages and the outer sleeve (C) and exits the pump at the discharge connection (D)

Table 5: General working range specification Pump type

DPV

Ambient temperature [°C] Minimum inlet pressure Viscosity [cSt] 3

Density [kg/m ]

5.6

Measuring, draining and venting

The pump is provided with plugs for measuring, draining and venting. Connection (E) is meant to drain the inlet part of the pump, or to measure the inlet / suction pressure using a G ¼ connection. Connection (F) is meant to drain the outlet part of the pump, or to measure the discharge pressure using a G ¼ connection. Connections (G) are meant to vent the pump system when the pump is not in operation, or to measure the discharge pressure of the pump using a G 3/8 connection.

Cooling

-20 up to 40

note 12

,

NPSHreq. + 1 m 1-100

3

1000-2500

2

forced motor cooling

Minimum frequency [Hz]

30

Maximum frequency [Hz]

60

4

Maximum number of starts

see motor data sheet

5

Noise emission

see motor data sheet

6

Allowable size of solids pumped 1. 2.

5 µm to 1 mm

Avoid freezing the pump. If the ambient temperature exceeds the above value or the motor is located more than 1000 m above sea level, the motor cooling is less effective and could require an adapted motor power. Please contact your supplier for more detailed advice.

3.

Deviation in viscosity and/or density could require an adapted motor power. Please contact your supplier for more detailed advice.

4.

5.7

Modular selection

For an optimal match with the application, the pump is assembled out of modules which are selected depending on their specifications. The basic modules are:

• • • •

5.8

Basic pump model. Defines the capacity and head, the basic material and allowable pressures and temperatures. Connections. Defines the connection size, pressure class and allowable temperatures. Sealings. Defines material of the elastomers, shaft seal type and allowable pressures and temperatures. Electric motor. Defines all requirements of the motor such as size, power, supply voltage, frequency and possible motor accessories.

Working range

The working range depends on the basic hydraulic design, the type of connection and sealings. The module in the pump with the strictest specification determines the allowable pressure and temperature of the medium in the pump. The general working specifications can be summarised as follows:

Pumps that are intended for 50 Hz operation, may not be connected to 60 Hz power supply.

5.

Frequent start/stops, in particular in combination with higher pressure differences (Δp) may result in a shortened product lifetime. Consult your supplier for such applications.

6.

Only the noise emission of the motor is documented.

ATTENTION The temperature difference between the medium and the pump should never exceed 60 °C. The pump must be filled / heated-up slowly in any case where the difference between pump and medium is more then 30 °C to avoid any chance of a thermal shock. For minimum/maximum flow at medium temperature of 20 oC see table 6 Minimum/maximum capacity (Qmin/max); for higher temperatures see figure 5 Minimum capacity vs. temperature (in % of Q optimum)

13

Table 6: Minimum/maximum capacity (Qmin/max) Qmin/max [m3/h]

3675

50 Hz

40

60 Hz

Q [%]

35

2 pole

4 pole

2 pole

4 pole

Min. Max.

Min. Max Min. Max. Min. Max.

0.2

3.3

0.2

4.0

4

0.4

6.5

0.5

7.8

6

0.6

9.0

0.8

10.8

10

1.1

13.2

0.5

6.6

1.3

15.8

0.6

7.9

15

1.6

22.5

0.8

11.3 2.0

27.0

1.0

13.5

25

2.8

35.0

1.4

17.5 3.1

42.0

1.6

21.0

40

4

54

1.9

27

4.9

65

2.3

32.5

60

5.3

57

2.6

38

6.4

92

3.2

46

85

8.5

110

4.3

53.9 10.2 132

5.1

65.1

125

30

160

15

80

18

96

LHS6 0.8

8.6

192

0.7

8.6

25 20

2

36

30

15 10 5 0 40

50

60

70

80

90

100

110

120

130

140

T [oC]

Figure 5: Minimum capacity vs. temperature (in % of Q optimum)

5.8.1 Detailed working range DPV For the actual working range of the pump see the name plate.

5.8.2 Detailed working range DPLHS 6 Table 7: Basic hydraulic design Pump type

Pressure [bar]

DPLHS 6

40

Temperature [°C] 120

14

Shaft seal type

Material mechanical seal

Shaft seal materials1

Pressure class shaft seal

Temperature range shaft seal

11

MG12-G60

B Q1 E GG

Ca/SiC/EPDM

PN10

-20/+100 °C

12

MG12-G60

B Q1 V GG

Ca/SiC/FPM

PN10

-20/+120 °C

13

RMG12-G606

Q1 B E GG

SiC/Ca/EPDM

PN25

-20/+100 °C

14

RMG12-G606

Q1 B V GG

SiC/Ca/FPM

PN25

-20/+120 °C

15

RMG12-G606

U3 U3 X4 GG

TuC/TuC/HNBR

PN25(PN16)

-20/+120(140) °C

16

RMG12-G606

U3 U3 V GG

TuC/TuC/FPM

PN25(PN16)

-20/+120(140) °C

2

17

M37GN2/16-00-R

U3 B V GG

TuC/Ca/FPM

PN40

-20/+120 °C

18

RMG12-G606

U3 B E GG

TuC/Ca/EPDM

PN25(PN16)

-20/+120(140) °C

19

M37GN2/16-00-R

U3 B E GG

TuC/Ca/EPDM

PN40

-20/+120 °C

203

H7N

Q1 A E GG

SiC/Ca/EPDM

PN40(PN25)

-20/+120(140) °C

3

H7N

Q1 A V GG

SiC/Ca/FPM

PN40(PN25)

-20/+120(140) °C

223

H7N

Q1 A X4 GG

SiC/Ca/HNBR

PN40(PN25)

-20/+120(140) °C

23

RMG12-G606

Q1 B E GG

SiC/Ca/EPDM

PN25

-20/+100 °C

24

MG12-G60

Q1 Q1 V GG

SiC1/SiC1/FPM

PN10

-20/+120 °C

28

MG12-G60

Q1 Q1 X4 GG

SiC1/SiC1/HNBR

PN10

-20/+120 °C

29

MG12-G60

Q1 Q1 E GG

SiC1/SiC1/EPDM

PN10

-20/+100 °C

MG12-G60

Q1 Q1 V GG

SiC1/SiC1/FPM

PN10

-20/+120 °C

107-L60

BVPFF

Ca/Ce/NBR

PN10

-15/+100 °C

21

30 31

4

Tek.: 20110262-K

Approvals

Seal code

Table 8: Seal code

WRAS

3675

size

Shaft seal type

Material mechanical seal

Shaft seal materials1

Pressure class shaft seal

Temperature range shaft seal

Approvals

BVEFF

Ca/Ce/EPDM

PN10

-15/+100 °C

WRAS

RMG12-G606

Q1 B E GG

SiC/Ca/EPDM

PN25

-20/+100 °C

WRAS

RMG12-G606 DST

Q1 B E FF

SiC/Ca/EPDM

PN25

-20/+100 °C

35

RMG12-G6

eCarb-B eSic-Q7 E GG

eCa/eSic/EPDM

PN25

-20/+120 °C

36

MG12-G6

eCarb-B eSic-Q7 V GG

eCa/eSic/FPM

PN25

-20/+120 °C

37

RMG12-G606

U3 A V GG

TuC/Ca/FPM

PN25(PN16)

-20/+120(140) °C

384

RMG12-G606

U3 U3 V GG

TuC/TuC/FPM

PN25(PN16)

-20/+120(140) °C

394

RMG12-G6

eCarb-B eSic-Q7 E GG

eCa/eSic/EPDM

PN25

-20/+120 °C

Seal code

107-L60

32 33

4

345

WRAS

WRAS

Tek.: 20110262-K

1.

Apart from the shaft seal other sealings might be assembled with different allowable conditions. If in doubt consult your sales supplier. LHS6 only

3.

Mechanical seal can withstand -30/+140 °[email protected]

4.

Only for Seal Options.

5.

Equivalent of Seal code 13, but with AISI304 spring material.

5.9

Explosion safety ATTENTION This sub chapter contains fundamental information which has to be taken in consideration when installing the pump with ATEX permission in a hazardous environment. ATTENTION Because of the probable creation of sparks during loosening and tightening of nuts and bolts, the pump(s) should not be opened, closed or (dis)assembled in an explosion hazardous environment. ATTENTION When there is an ATEX sticker on the pump, the pump must only be used for pumping a medium with a conductivity higher than 50 pS/m.

5.9.1 General Stickers or indicators on the pump sleeve and the motor indicate whether the pump is suitable for use in an environment with risk of explosion. It is allowed to install the pump in a zone which is classified in directive 1999/92/EC.

When in doubt it is compulsory to check the above directive.

5.9.2

Indication

ID2512

Figure 6: Indication sticker explosion safety

2512

2.

15

Table 9: ATEX marking



Indication Meaning II

Product group for use above ground, with the exception of mine working where there can be danger of explosion due to mine gas and/or flammable substances.

2

Category 2: Equipment in this category is intended for use in areas in which explosive atmospheres caused by mixtures of air and gases, vapours or mists or by air/dusts mixtures are likely to occur.

3

Category 3: Equipment in this category is intended for use in areas in which explosive atmospheres caused by mixtures of air and gases, vapours or mists or by air/dusts mixtures are likely to occur or, if they do occur, are likely to do so only infrequently and for a short period only.

G

Suitable for an environment that is explosive due to gas, vapour or fumes; not suitable for an environment that is explosive due to dust.

T4/T3

Temperature class: T4 for maximum surface temperature 135 °C T3 for maximum surface temperature 200 °C

5.9.3

Medium temperature

The applied ATEX motor determines the maximum allowable temperature of the pumped liquid. See table 10 Maximum medium temperatures



• • • • •

Table 10: Maximum medium temperatures ATEX marking motor

Maximum allowable medium temperature

Exe

T3

60 °C

Exd

T4

100 °C

Exde

T4

100 °C

Others

5.9.4

Maximum ambient temperature of motor

Commissioning (check list)



• • •

It is compulsory to check these points prior to putting the pump in operation. 16





The ATEX code of an ATEX ‘pump with motor’ (assembly) supplied by DP-Industries can be found on the pump shroud. Check if the ATEX code of the ‘pump with motor’ assembly is in accordance with the ATEX specification of the motor. For each part of the code the specification of the assembly may not be higher than the specification of the motor. Make sure that the pump is protected against damage from outside.

• • •

Make sure that the medium temperature never exceeds the maximum allowed temperature (see table 10 Maximum medium temperatures). Apply a temperature monitoring and limiting system, meeting the requirements of EN 134636, that stops the pump at too high medium temperatures. Please note that the maximum temperature noted on the name plate of the pump refers to the technical specification of the pump and does not necessarily match with the maximum allowed medium temperature for ATEX applications. Apply a monitoring and limiting system, meeting the requirements of EN 13463-6, to prevent dry running. It has to check the presence of the medium at the inlet of the pump and stop the pump when no medium is available. Apply a monitoring and limiting system to secure that the maximum current for the motor is not exceeded. If the motor is suited with a PTC; connect the PTC to a monitoring and limiting system. Check if the motor cable is suitable for the current drawn by the motor. See the motor type plate. Check if the pump is fully filled with the medium (de-aerated). Do not operate the pump when gas is present in the pump. Check the rotational direction of the motor. The motor has to run clockwise (seen from the non driven side).This direction is indicated with an arrow on the motor stool. Do not apply higher pressures in the pump than is allowed at the working temperature of the medium. The allowed pressure can be found on the name plate of the pump. Do not operate the pump at flows lower than specified in performance curve (see the technical documentation). Do not operate pump at flows higher then specified in the performance curve (see the technical documentation). Do not operate the pump with inlet pressures lower than specified in the NPSHreq requirements (NPSHreq + 1 m). See the technical documentation. Make sure that the maximum particle sizes in the medium does not exceed the values specified at ‘5.8 Working range’ The pump has to be de-aerated again when: - The pump has not operated for a while - Gas has gathered in the pump Wrong adjustment of the coupling can cause interference of pump parts. Assembling and adjusting the coupling has to be performed by a certified mechanic from the supplier of the pump.

• •





• • •

• • •

Make sure the coupling guards are assembled. Wrong assembly of the coupling guards could cause them to vibrate during operation of the pump or cause interference of pump parts. If the coupling guards have to be (re)assembled, this has to be done by a certified mechanic from the supplier of the pump. Make sure that the pump and the motor shaft are running smoothly without excessive noise (e.g. no parts are running against each other). Wrong assembling of the mechanical seal construction (easy access or cartridge) can cause malfunction of the pump. Assembling of the cartridge/easy access seal construction has to be done by a certified mechanic from the supplier of the pump. Make sure that only media is pumped that is compatible with the seals and elastomers that are applied in the pump (see technical documentation) Electric installation of the pump has to be done by a ATEX certified mechanic. Make sure the pump is electrically connected (earthed) with the surrounding parts of the installation. Regularly examine the condition of the bearings in the motor and/or thrust bearing housing (for example by means of vibrations measurement) in order to detect damage of the bearing raceways/roller elements. Stop the application of the pump when damage in a roller element bearing is found. If a flammable medium is pumped, its temperature may not exceed its ignition temperature minus 50 °C. Take care at an intensively used pump which is successively not used for a while: when it will be started again, leakage could occur at the shroud. Do not pump different mediums which can have chemical reactions with each other.



• •

Apply a motor that has a special bearing which is suited to support the high axial loads at the pump shaft. If this is not the case, a thrust bearing housing has to be applied. Apply a motor with a nominal power which is suited to drive the pump at the operating frequency. Apply a motor that has the proper frame size to connect with the motor stool.

If a pump supplied with thrust bearing housing or a solely supplied thrust bearing housing is supplied, it is compulsory to also check the following additional points prior to putting the pump in operation:







Wrong adjustment of the axial play between the thrust bearing housing shaft and the motor shaft could result in too high impacts between these shafts and/or increased wear of the roller element bearings. Assembling of the electric motor on the thrust bearing housing has to be done by a certified mechanic form the supplier of the pump. When the thrust bearing housing has a grease nipple, it can be lubricated. Proper lubrication is important to prevent high temperatures in the bearing. If the thrust bearing housing has grease nipple it is obligatory to take care of adequate lubrication by supplying grease on a yearly basis. This needs to be grease with a melting point and ignition temperature of minimally 200 °C. Do not install the pump horizontally or upsidedown.

If the pump is supplied without motor, it is compulsory to also check the following additional points prior to putting the pump in operation:

• •

Apply a motor that is ATEX certified for equipment group IIG. The determination of the ATEX code and certification of the assembly is the responsibility of the owner of the pump/motor. The different parts of the ATEX code of the assembly are determined by the lowest specification of pump or motor.

17

6

Transport

6.1

Transport

1. 2. 3.

Table 11: Transport positions ID3079

ID3080

ID3081

ID3082

Transport the pump in the position as indicated on the pallet or packaging. Make sure the pump is stable. If present, observe the instructions on the packaging. WARNING Lift the pump, if necessary using a hoist and suitable slings. Attach the slings to the transport lugs on the packaging, where present. WARNING The pump must be lifted according to the current hoist guidelines. Only qualified personnel is allowed to lift the pump.

20080196/20080197/20080192/2008195

WARNING Do not lift the pump by using the frequency converter (if placed), electrical parts or the motor cover. Be sure that the pump is always in balance. WARNING Pumps could tilt while lifting. Do not remove the lifting devices from the pump before the pump is placed and mounted correctly.

6.2

Storage

Fill the pump with glycol in order to protect it against the risk of frost. Table 12: Storage Storage

18

tambient [°C]

-10/+40

Max. rel. humidity

80% at 20 °C not condensing

6.2.1 1.

Inspection during storage

Turn the shaft every three months and just before putting into operation.

7

Installation instructions

7.1

Setting up the pump ATTENTION Avoid stress in the pump casing caused by misalignment in the piping system. Please see table below.

Table 13: Allowable forces DPV(S)F and DPLHS Type

DN [mm]

V(S)F 2 B

25

V(S)F 4 B V(S)F 6 B

Force [N]

Table 15: Allowable forces DPVCF Type

DN [mm]

3300 -2400 1700 4420

VCF 2 B

25

9400 -3200 3200

10430

25

3300 -2400 1700 4420

VCF 4 B

25

9400 -3200 3200

10430

32

3300 -2400 1700 4420

VCF 6 B

32

9400 -3200 3200

10430

V(S)F 10 B

40

4000 -3100 3100 5930

VCF 10 B

40

8000 -2000 3200

8850

V(S)F 15 B

50

4000 -3100 3100 5930

VCF 15 B

50

8000 -2000 3200

8850

Fx

Fy

ΣF

Fz

Force [N] Fx

Fy

Fz

ΣF

V(S)F 25 B

65

3200 -3500 3500 5890

VCF 25 B

65

5000 -2000 2500

5940

V(S)F 40 B PN16/25

80

4000 -1800 2000 4820

VCF 40 B

80

6000 -3000 3000

7350

V(S)F 40 B PN40

80

3700 -3300 3700 6190

VCF 60 B

100

6000 -3000 3000

7350

V(S)F 60 B PN16/25

100

4000 -1800 2000 4820

VCF 85 B

100

6200 -4100 4100

8490

V(S)F 60 B PN40

100

3700 -3300 3700 6190

VCF 125 B 16 Bar

125

4400 -1700 1700

5010

V(S)F 85 B

100

3500 -2500 1000 4420

VCF 125 B 25/40 Bar 125

7000 -2620 2620

7920

V(S)F 125 B 16 Bar

20090283-G

125

4400 -1700 1700 5010

V(S)F 125 B 25/40 Bar 125

7000 -2620 2620 7920

DPLHS 6

8000 -2000 3200 8800

32

20090283-G

Table 14: Allowable torque DPV(S)F and DPLHS Type

DN [mm]

Moment [Nm] Mx

My

Mz

ΣM

Table 16: Allowable torque DPVCF Type

DN [mm]

Moment [Nm] Mx

My

Mz

ΣM

VCF 2 B

25

600

300

-360

760

VCF 4 B

25

600

300

-360

760

VCF 6 B

32

600

300

-360

760

V(S)F 2 B

25

280

95

-210 360

VCF 10 B

40

460

460

-500

820

V(S)F 4 B

25

280

95

-210 360

VCF 15 B

50

460

460

-500

820

V(S)F 6 B

32

280

95

-210 360

VCF 25 B

65

1000 300

-300

1090

V(S)F 10 B

40

440

180 -200 520

VCF 40 B

80

1800 1000

-1000 2290

V(S)F 15 B

50

440

180 -200 520

VCF 60 B

100

1800 1000

-1000 2290

V(S)F 25 B

65

1000 230 -400 1100

VCF 85 B

100

2000 1200

-1200 2620

V(S)F 40 B PN16/25

80

400

200 -300 540

VCF 125 B 16 Bar

125

V(S)F 40 B PN40

80

975

240 -450 1100

VCF 125 B 25/40 Bar 125

V(S)F 60 B PN16/25

100

400

200 -300 540

20090283-G

V(S)F 60 B PN40

100

975

240 -450 1100

V(S)F 85 B

100

750

500 -625 1100

V(S)F 125 B 16 Bar

125

600

425 -425 850

V(S)F 125 B 25/40 Bar 125

1000 655 -655 1360

DPLHS 6

460

20090283-G

32

460 -500 800

425

-425

850

1000 650

600

-650

1360

19 ATTENTION For the values mentioned in the tables above, it is assumed that they occur simultaneously.

7.1.1

Indicators

ID3064

ID3078

Figure 7: Allowable forces

20090283-G

A

ATTENTION Pumps which do not stand steady or stable on their own, should be mounted on a rigid and stable base. ATTENTION Locate the pump at the place with the lowest risk for noise nuisance.

1. 2.

3.

4.

5. 20 6.

Place and install the pump on a level, stable surface in a dry and frost-free room. Make sure that sufficient air can reach the cooling fan of the motor. For this purpose the free space above the cooling fan should be at least 1/4 of the diameter of the fan cover air intake. Install the pump with counter flanges. For pumps with non-standardised connections, counter flanges are delivered separately. It is advised to install a shut off valve on the supply and on the delivery connection of the pump. To avoid medium flowing back through the pump, when idle, make sure a non-return valve is installed. Make sure that the inlet of the pump is never clogged.

Figure 8: Pump indicators

20080201/26022008

B

The arrow (A) on the pump foot indicates the flow direction of the liquid. The arrow (B) on the top bracket indicates the rotating direction of the motor. 7.1.2 Install bypass Install a bypass if the pump operates against a closed valve. The required capacity of the bypass is at least 10% of the optimum volume flow. At high operating temperatures a higher volume flow is required. Refer to the table "Minimum volume flows" in the paragraph "Working range" and fig 5 Minimum capacity vs. temperature (in % of Q optimum).

7.2

Mounting a motor on the pump ATTENTION It is to be advised to use a special designed DP-Pumps motor. Before installing an other brand/standard IECnorm motor, DP-Pumps has to be consulted to judge the applicability.

The following motor specifications are required: • Increased power output (when applicable) • Reinforced bearing at driven end (to withstand the axial force) • Fixed bearing at driven end (to minimize the axial play) • Smooth shaft, no key way (to improve the coupling grip and to improve the motor balance) The advised bearings per motor type are:

1.

Table 17: Minimum required motor Driven-end bearing

2.

Bearing type Power 1 phase output 50 Hz

3 phase 50/60 Hz

[kW]

2 pole

0.25

4 pole 6202-2Z-C3

0.37

6202-2Z-C3

6203-2Z-C3

6202-2Z-C3

0.55

6202-2Z-C3

6203-2Z-C3

6202-2Z-C3

0.75

6204-2Z-C3

6204-2Z-C3

6202-2Z-C3

1.1

6204-2Z-C3

6204-2Z-C3

6205-2Z-C3

1.5

6305-2Z-C3

6305-2Z-C3

6205-2Z-C3

2.2

6305-2Z-C3

6305-2Z-C3

6206-2Z-C3

3

6306-2Z-C3

6206-2Z-C3

4

6306-2Z-C3

6208-2Z-C3

5.5

6308-2Z-C3

6208-2Z-C3

7.5

6308-2Z-C3

6208-2Z-C3

11

7309

15

7309

18.5

7309

22

7311

30

7312

37

7312

45

7313

3.

4. 5.

6.

Remove the coupling guards (681) and the coupling shells (862). Remove the seal protection bracket (89-11.03) and its mounting material. For pumps with a taper piece (722) (with motor of 5.5 kW or higher), the two bolts (914.02 or 901.02) has to be placed back to connect the taper piece to the motor stool. Thoroughly clean the motor stool (341), the shaft (210), the coupling shells (862) and the motor shaft. Loosely fasten the coupling shells (862) with the coupling pin (560) on the shaft (210). Use the hexagon socket head cap screw (914.01) and the nut (920.01) for this. (When the pump is equipped with a steel coupling, never use the same coupling twice but order a new one). Place the motor on the motor stool (341). Tighten the lower bolts of the coupling shells (862) in such way, that the coupling slightly clamps around the motor shaft. For pump series: DPV Use a sufficient tyre iron to lift the coupling (and hydraulic assembly) 1.5 mm higher then the lowest position. For easy and accurate adjustment of the coupling contact your supplier for the appropriate Toolkit For Adjustment Hydraulics.

20101096-F

7.2.1

Install the motor on pumps, supplied without motor, with a standard mechanical seal.

MIN + 1,5 mm MIN

Figure 10: fixed seal

20090559-C

ID3312/20090403

WARNING Correct seal adjustment max. 1.5 mm higher then the lowest position.

Figure 9: Without motor

20090321

ATTENTION For motors of 11 kW or higher, block the rotor when adjustments are made to the coupling. This ensures that the rotor is not lifted out of its bearings. 7.

For pump series: DPLHS 6

21

7.2.2

Installing the motor on pumps, supplied without motor, with a cartridge seal

20070376

Use a sufficient tyre iron to lift the coupling (and hydraulic assembly) to the maximum upwards position and lower it 1 mm from this position.

Figure 11: Positioning the seal

WARNING Correct seal tension max. -1 mm lower than the maximum upwards position!

8.

Fully tighten the couplings at the given torque (see "Torques" in the annexes). Make sure that the gaps between the couplings are equally divided on both sides (see drawing).

Figure 13: With motor 1. 2.

Figure 12: Position of the coupling 22

9.

20030733

3.

Attach the coupling guards (681) with the socket head cap screws (914.05) to the motor stool (341). 10. Connect the power supply. see § 7.3 Electrical installation.

4. 5. 6. 7. 8.

20090322

ATTENTION For motors of 11 kW or higher, block the rotor when adjustments are made to the coupling. This ensures that the rotor is not lifted out of its bearings.

Remove the coupling guards (681) and the coupling shells (862). Remove the seal protection bracket (89-11.03) and its mounting material. For pumps with a taper piece (722) (with motor of 5.5 kW or higher), the two bolts (914.02 or 901.02) has to be placed back to connect the taper piece to the motor stool. Thoroughly clean the motor stool (341), the shaft (210), the coupling shells (862) and the motor shaft. Loosely fasten the coupling shells (862) with the coupling pin (560) on the shaft (210). Use the hexagon socket head cap screw (914.01) and the nut (920.01) for this. (When the pump is equipped with a steel coupling, never use the same coupling twice but order a new one). Place the motor on the motor stool (341). Loosen the three cartridge grub screws (904) one turn. Push the hydraulic pump assembly in the lowest position. Tighten the three cartridge grub screws (904) firmly to the shaft. Tighten the lower bolts of the coupling shells (862) so that the coupling slightly clamps around the motor shaft.

9.

For pump series: DPV Use a sufficient tyre iron to lift the coupling (and hydraulic assembly) 1.5 mm higher then the lowest position. For easy and accurate adjustment of the coupling contact your supplier for the appropriate Toolkit For Adjustment Hydraulics.

ATTENTION For motors of 11 kW or higher, block the rotor when adjustments are made to the coupling. This ensures that the rotor is not lifted out of its bearings. 11. Fully tighten the couplings at the given torque (see "Torques" in the annexes). Make sure that the gaps between the couplings are equally divided on both sides (see drawing).

WARNING Correct seal adjustment max. 1.5 mm higher then the lowest position.

Figure 16: Position of the coupling

ATTENTION For motors of 11 kW or higher, block the rotor when adjustments are made to the coupling. This ensures that the rotor is not lifted out of its bearings. 10. For pump series: DPLHS 6 Use a sufficient tyre iron to lift the coupling (and hydraulic assembly) to the maximum upwards position and lower it 1 mm from this position.

20030733

Figure 14: Cartridge seal

20091316-B

MIN + 1.5 mm MIN

12. Install the coupling guards (681) with the socket head cap screws (914.05) to the motor stool (341). 13. Connect the power supply. see § 7.3 Electrical installation.

7.3

Electrical installation WARNING In accordance with the local regulations only authorised personnel is allowed to make electrical connections to the motor.

Figure 15: Positioning the seal

20070376

ATTENTION Connect the motor according to figure 17 Motor connections and always check the rotation direction.

WARNING Correct seal tension max. -1 mm lower than the maximum upwards position!

Electrical connections: • Make sure that the motor specifications correspond with the power supply to which the pump motor is connected. Consult "Electrical diagrams" for the correct connection diagram. • Connect the motor using a motor safety switch.

23

Example may differ upon chosen motor

20130499-A

ID2482

Figure 17: Motor connections PTC connection STM 140 EK: • Standard motors 3 kW and up are equipped with a PTC thermistor. Consult Table 18 Technical specifications PTC STM 140 EK. • Connect the PTC to a thermistor relay.

Table 18: Technical specifications PTC STM 140 EK Value

24

tn [oC]

140

R20 °C [Ώ]

~ 20

Rtn-20 °C [Ώ]

~ 250

Rtn-5 °C [Ώ]

< 550

Rtn+5 °C [Ώ]

> 1330

Rtn+15 °C [Ώ]

> 4000

Un [VDC]

2.5 < U < 30

7.4

Commissioning WARNING The pump must be switched off when it is not completely filled up. ATTENTION Vent the pump and suction line. Fill the pump and suction line with the medium. ATTENTION Seen from the top of the motor the pump should rotate clockwise. See 7.1.1 Indicators (B). In case of a 3-phase motor the rotating direction can be changed by exchanging two of the three phases.

3. 7.4.1

In an open or closed circuit with sufficient supply pressure

4. 5. 6.

Fill the pump housing to the maximum through the fill plug with the liquid that is to be pumped. Insert the fill plug (B) in the top bracket. Check the rotational direction of the pump. Open the outlet shut-off valve (A).

ID0239

7.4.3

After an extended period of nonoperation or storage During first start-up, check the mechanical seals for leakage due to seizure or dehydration of the lubricating film. If so, please proceed as following: 1. Turn shaft manually; 2. Check if the mechanical seal is still leaking.

B C

Figure 18: Example: Pump with open or closed circuit 1. 2. 3. 4. 5. 6. 7.

ID239

A

Close the suction shut-off valve (C) and the outlet shut-off valve (A). Open the fill plug (B). Gradually open the suction shut-off valve until the liquid flows from the fill plug (B). Close the fill plug. Fully open the suction shut-off valve. Check the rotational direction of the pump. Fully open the outlet shut-off valve (A).

7.4.2

If the mechanical seal is still leaking: 1. Disassemble the mechanical seal. 2. Thoroughly clean and degrease the running surfaces. 3. Assemble the mechanical seal again and retry start-up. If this doesn’t solve the shaft leakage, replacement of the mechanical seal is necessary.

In an open circuit with a liquid level lower than the pump

ID0241

B

A

Figure 19: Example: Liquid level lower then pump 1. 2.

Remove the fill plug (B) from the top bracket. Close the outlet shut-off valve (A).

ID241

25

8

Operation

8.1

Operation

The pump is controlled externally and therefore does not need any operation guidance.

26

9

Maintenance

9.1

Introduction WARNING Observe the general safety precautions for installation, maintenance and repair.

Regular maintenance is necessary for the correct operation of a pump. Please contact your supplier for maintenance of the pump.

1. 2. 3. 4.

Close all pump valves. Drain each pump and/or the system. Remove all plugs from the pump. Open the shut-off and fill/air vent plug, if present.

9.4

Torques of coupling shell pos 914.01

Table 19: Torques

9.2

Lubrication

Standard motors, with a maximum power of 7.5 kW, are provided with maintenance free sealed bearings. Motors with lubricating nipples must be lubricated after 2000 hours. If the pump works under extreme conditions, such as high vibrations and temperatures, the motors must be lubricated more often.

Material

Dimensions

Torques [Nm]

Steel

M6

16

Steel / Cast iron

M8

30

Aluminium

M8

22

Cast iron

M10

70

95000697-AR

Use a lithium based -30 °C / 160 °C bearing lubricant (about 15 grams). When the pump is delivered without a motor and fitted with an other brand or the standard motor is replaced by an other brand than DP-Pumps, please consult the maintenance instructions of the motor supplier. ATTENTION Also follow the instructions in § 7.2 Mounting a motor on the pump.

9.3

Maintaining the pump for an extended period of nonoperation

Turn the shaft every three months1. This protects the seals from seizure. Protect the pump if there is a risk of frost. Proceed as follows:

1.

period may vary per application or medium. Please consult your sales representative for application details.

27

10 Failures 10.1

Failure table WARNING Observe the general safety precautions before installation, maintenance and repair.

Problem Leakage along the shaft.

Possible cause Running surfaces of the mechanical seal worn or damaged. New pump: seal stuck due to assembly. Mechanical seal mounted incorrectly. Elastomers affected by medium. Pressure too high. Shaft worn.

Pump has been operating without water. Leakage along the shroud O-ring worn at the top bracket or at the O-ring not resistant to the pump casing. medium to be pumped Too much stress on the pump casing; it becomes oval.

28

Pump is vibrating or noisy. Coupling mounted incorrectly. Faulty setting of the hydraulic assembly. There is no water in the pump. No supply of medium.

Bearings of pump and/or motor worn. Available NPSH too low (cavitation).

Possible solution Replace the mechanical seal. Open and close the outlet shut-off valve quickly during operation. Install the mechanical seal correctly. Use water and soap as a lubricant. Use the right rubber compound for the mechanical seal. Use the right type of mechanical seal. Replace shaft and mechanical seal. Replace the mechanical seal. Replace the O-ring. Replace O-ring by an Oring with better resistance Decrease stress on piping. Mount the pump casing without stress. Support the connections. Install the coupling in parallel. Adjust the assembly according to the manual. Fill and vent the pump. Make sure there is sufficient supply. Check for blockages in the supply line. Have the bearings replaced by a certified company. Improve suction condition.

Checkpoints Check the pump for dirt / abrasive parts.

Problem Possible cause Pump is vibrating or noisy. Pump does not work in its working range.

Malfunction. Pump does not start.

Pump is standing on an uneven surface. Internal blockage in the pump. No voltage on the power terminal.

Possible solution Select another pump or adjust the system to work within its working range. Level the surface. Have the pump inspected by a certified company. Check the power supply.

Checkpoints

• • • • •

Circuit Main switch Fuses Earth leakage switch Check the motor safety relay Protective relay Thermal motor safety Reset the thermal motor- Check if the correct value is set. Find the correct switch triggered. safety. Contact the supplier, if this problem occurs value (Inom) on the motor more often. type plate. Tighten the connecting The motor is running, but The coupling between the pump does not work. pump- and motor shaft is screws to the required torque. loose (when applicable). The pump shaft is broken. Contact the supplier. Pump supplies insufficient Outlet and/or inlet shut-off Open both shut-off valves. capacity and/or pressure. valve is closed. There is air in the pump. Vent the pump. The suction pressure is Increase the suction presinsufficient. sure. Pump rotates in the wrong Change over L1 and L2 of direction. the three phase supply. The suction line has not Vent the suction line. been vented. Air bubble in the suction Install the suction line with line. pump end higher than the other end. Repair the leakage. Pump sucks air because of leakage in the suction line. Water flow too low. So air Make sure the flow increases or use a smaller bubbles clog up in the pump. pump. The diameter of the sucIncrease the diameter of tion line is too small. the suction line. Capacity of water meter in Increase the capacity of the water meter. the supply line is too small. Foot valve blocked. Clean the foot valve. The impeller, the diffuser Clean the inside of the or stage is blocked. pump. O-ring between impeller Replace the O-rings. and diffuser is gone. O-ring not resistant to the Replace O-ring by an Omedium to be pumped. ring with better resistance.

29

11 Annexes 11.1

EC declaration of conformity

DP-Pumps Kalkovenweg 13 2401 LJ Alphen aan den Rijn, The Netherlands Tel: (+31)(0)-172-48 83 88 Hereby declares as manufacturer entirely on his own responsibility, that the products: Vertical multi-stage centrifugal pumps, series: DPV and DPLHS

Serial number: 01/2017 1000000-001 [...] 52/2018 9999999-999 In case the pump is delivered without ATEX classification: to which this declaration refers, is in accordance with the following standard: EN 809: 1998+A1:2009/C1:2010 according to the provisions of the harmonized standard for pumps and which implies the regulations of Machine directive 2006/42/EC, Ecodesign Directive 2009/125/EC, Regulation 547/2012 (for water pumps with a maximum shaft power of 150kW. Applies only to water pumps marked with the Minimum Efficiency Index MEI. See pump nameplate.) in the most recent form In case the pump is delivered, ordered and marked with an ATEX classification: to which this declaration refers, is in accordance with the following standard: EN 809: 1998+A1:2009/C1:2010 according to the provisions of the harmonized standard for pumps and which implies the regulations of Machine directive 2006/42/EC, Ecodesign Directive 2009/125/EC, Regulation 547/2012 (for water pumps with a maximum shaft power of 150kW. Applies only to water pumps marked with the Minimum Efficiency Index MEI. See pump nameplate.) in the most recent form. The pump also complies with the ATEX directive for Equipment Group II Category 2 as filed under number: 11 ATEX D048 by PTB (identification no.: 0102) and is in accordance with the standard: EN 13463-1:2009-07

The pump is subject to this declaration of conformity as a stand alone product. Make sure the appliance or installation in which the pump is built in, has got a declaration of compliance with the directives listed above, for its complete assembly.

30

Alphen aan den Rijn 16/01/2017 Authorized representative M.H. Schaap, product development.

31

dp pumps dp pumps P.O. Box 28 2400 AA Alphen aan den Rijn The Netherlands t +31 172 48 83 88 f +31 172 46 89 30 [email protected] www.dp-pumps.com 01/2017 BE00000377-H / EN Can be changed without prior notice Original instructions

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Vertical multi-stage centrifugal pumps Installation and operating instructions series: DPV and DPLHS Table of Contents 1 Manual Introduction 1.1 1...

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Centrifugal Pumps - Rimbach Publishing Inc
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Bearings in centrifugal pumps - SKF.com
shape and size of the impeller, using an index number called specific speed, ns, see figure 1.4. The specific speed numb

Engineering Page > Pumps > Information Centrifugal Pump Calculation
Nov 21, 2017 - (Using a double suction pump provides two impeller eyes and is in fact based on this principle). There is

Chapter 9 CENTRIFUGAL PUMPS - Springer Link
of this type as prime movers for high-tonnage slurry operations was shown ... (Power ).^ = 2mT = 2nlS!T/60. (9.4). With

Fluid Viscosity Effects on Centrifugal Pumps - Warren Pumps
head-capacity curves presented in pump vendor catalogs are pre- ... tional horsepower required to overcome this drag red

Calculators - Peerless Pump offers fire pumps, centrifugal pumps
Typical Expected Efficiency Estimator NEW! » Water Supply & Water Resources Research » Head in Feet Calculator » Affi