EBARA GS Instrucciones de uso

Model GS

STANDARDISED END SUCTION PUMPS AND ELECTRIC PUMPS

Instruction and maintenance manual ....................................................... 3EN

POMPE ED ELETTROPOMPE CENTRIFUGHE NORMALIZZATE

Manuale di istruzioni e manutenzione.................................................... 31 IT

POMPES À ASPIRATION AXIALE NORMALISÉES

Manuel d’instructions et de maintenance .............................................. 59 FR

NORMPUMPEN NACH EN 733

Gebrauchs - und wartungsanleitung...................................................... 87 DE

BOMBA CENTRÍFUGA HORIZONTAL

Manual de instrucciones y mantenimento............................................ 115 ES

NORMALISERADE CENTRIFUGALPUMPAR OCH ELPUMPAR

Manual för instruktioner och underhåll................................................. 143 SV

PUMPER OG NORMALISEREDE CENTRIFUGE ELEKTROPUMPER

Drift og vedligehold manual.................................................................. 171 DA

NORMALISOIDUT PUMPUT JA SÄHKÖISET KESKIPAKOPUMPUT

Käyttö- ja huolto-ohje........................................................................... 199 FI

GESTANDAARDISEERDE POMPEN EN ELEKTRISCHE CENTRIFUGAALPOMPEN

Handleiding voor gebruik en onderhoud.............................................. 227 NL

BOMBAS E ELETROBOMBAS CENTRÍFUGAS NORMALIZADAS

Manual de instruções e manutenção ................................................... 255 PT

ΕΝΑΡΜΟΝΙΣΜΕΝΕΣ ΦΥΓΟΚΕΝΤΡΕΣ ΑΝΤΛΙΑΣ ΚΑΙ ΗΛΕΚΤΡΙΚΕΣ ΑΝΤΛΙΕΣ

Εγχειρίδιο οδηγιών και συντήρησης...................................................... 283 EL

NORMALIZOVANÁ ČERPADLA ODSTŘEDIVÁ ELEKTRICKÁ ČERPADLA

Návod k použití a údržbě ..................................................................... 311 CS

ŠTANDARDIZOVANÉ ČERPADLÁ A ODSTREDIVÉ ČERPADLÁ

Návod na použitie a údržbu ................................................................. 339 SK

POMPY I ELEKTROPOMPY WIRNIKOWE ZNORMALIZOWANE

Instrukcja Obsługi i Konserwacji .......................................................... 367 PL

СТАНДАРТИЗИРОВАННЫЕ ЦЕНТРОБЕЖНЫЕ НАСОСЫ И ЭЛЕКТРОНАСОСЫ

Руководство по эксплуатации и техническому обслуживанию ..... 395 RU

POMPE ȘI ELECTROPOMPE CENTRIFUGALE STANDARDIZATE

Manual de instrucțiuni și întreținere...................................................... 423 RO

STANDART HALE GETIRILMIŞ SANTRIFÜJ TIPI POMPALAR VE ELEKTRIKLI POMPALAR

Kullanım ve bakım kılavuzu .................................................................. 451 TR

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Instruction and Maintenance Manual

CONTENTS

1. INTRODUCTION.......................................................................................................4

2. SAFETY.....................................................................................................................4

2.1 PREPARATION AND TRAINING OF STAFF

2.2 MAINTENANCE

3. TRANSPORT AND STORAGE..................................................................................5

4. SPECIFICATIONS .....................................................................................................5

5. OPERATING LIMITS.................................................................................................6

6. INSTALLATION .........................................................................................................7

6.1 INSTALLATION POINT

6.2 LIFTING

6.3 CEMENTED BASE

6.4 PIPES

6.5 ALIGNMENT

6.6 ELECTRICAL SYSTEM

6.6.1 ELECTRICAL CONNECTION

6.6.2 ELECTRICAL MAINTENANCE

7. OPERATION............................................................................................................13

7.1 BEFORE STARTING THE PUMP

7.2 STARTING THE PUMP

7.3 STOPPING THE PUMP

7.4 ADJUSTING THE GASKET (ONLY PUMPS WITH SOFT SHAFT SEAL)

8. MAINTENANCE ......................................................................................................15

8.1 DAILY INSPECTION

8.2 PRECAUTIONS DURING OPERATION

8.3 PRECAUTIONS DURING STORAGE

8.4 REPLACING PARTS

8.5 TROUBLESHOOTING

8.6 RESIDUAL RISKS

9. CONSTRUCTION....................................................................................................24

10. DISMANTLING AND FITTING................................................................................25

10.1 DISMANTLING

10.2 FITTING

11. REPAIR AND WARRANTY.....................................................................................26

Instruction and Maintenance Manual

1. INTRODUCTION

Thank you for choosing this EBARA GS model pump. This operating manual describes

the correct installation, operation and maintenance procedures of the product. EBARA

pays great attention to the manufacturing of its products so that their use by end-users

may be as safe as possible. However, using this pump improperly may reduce its oper-

ating performance and lead to personal injury and damage to property.

All our devices are delivered after being checked at our own plant and so they are in a

condition to operate correctly after being connected to the power supply and the water

system, as shown in this manual.

When this device is delivered:

Check the nameplates. It is very important to check the voltage rating for the pump.

Also, check the value of the head, the capacity and the RPM of the pumps, as well

as the maximum absorption of the motors.

Double check the equipment to make sure there is no damage generated during the

start up and that there are no loose screws or mountings.

Check that all the accessories, spare parts and required options are included within

the supply.

We recommend that you keep this manual in a safe place so that it may be consulted

whenever needed.

2. SAFETY

This instruction and maintenance manual includes the basic instructions that should be

taken into consideration during installation, operation and maintenance of the equip-

ment.

Generic hazard Electrical Voltage

It is essential that the worker/installer reads all the sections in this manual carefully be-

fore installation and operation. We recommend that you keep this manual in the place

where you plan to install the equipment. In addition to the safety instructions found in

this manual, it is also necessary to take into account the safety regulations and stand-

ards in force in the country where you want to use the equipment, in order to achieve

greater protection.

Disregarding the safety instructions shown in this manual may lead to risks to persons

and equipment.

Instruction and Maintenance Manual

2.1 PREPARATION AND TRAINING OF STAFF

The personnel involved in the installation, operation, maintenance and control of the

equipment must be properly trained so as to carry out their tasks as eectively as possi-

ble. The responsibility, skills and supervision of the personnel fall within the remit of the

employer. If the sta do not have the appropriate knowledge, they must be duly trained.

If required, the employer may receive proper training directly from EBARA or from the

distributor of this equipment.

2.2 MAINTENANCE

No technical or structural changes to the equipment are permitted without prior approv-

al from EBARA. Only genuine spare parts and accessories authorised by EBARA are

suitable for meeting safety standards. Rebuilding, modifying or using other spare parts

may lead to the invalidation of your warranty.

Sound operation of the equipment depends on whether it is being used in accordance

with the instructions given in this instruction manual. The working conditions and limits

set out in this manual may not be exceeded in any way.

Always keep the nameplates legible and in good condition because the details shown

will be needed for future reference or to request spare parts.

3. TRANSPORT AND STORAGE

If necessary, the equipment must be handled and stored in appropriate packaging. It

must not be stored in damp environments with strong variations in temperature or in

corrosive atmospheres. Condensates may attack the seal areas, metal parts and its

electrical operation. In this case, any claims made under the warranty will be refused.

4. SPECIFICATIONS

Check on the nameplate, the value of total head (HEAD), its capacity (CAP) and the

rotation speed (min-1), as well as the voltage and nominal current rating on the motor

nameplate.

10 11

1. Product code

2. Serial number

3. Flow rate

4. Head

5. Electric pump model

6. Motor power

7. Rotation speed

8. Manufacturing number

9. Eciency at duty point

10. MEI index

11. Production year

Instruction and Maintenance Manual

The GS pump conforms to the dimensions required by EN 733.

Its applications include climate control and building services, water supply, industry, etc.

Other speciﬁcations are shown in the following table:

Pump body in cast iron GG25 (FC250)

Description Standard Optional

2 and 4 poles 2 and 4 poles

Liquid

Temperature -10 to 120ºC -10 to 120ºC

Density in accordance with

requirements in accordance with

requirements

Viscosity in accordance with

requirements in accordance with

requirements

Maximum operating pressure 16 bar (1.6 MPa) 16 bar (1.6 MPa)

Construction

Impeller Closed Closed

Seal Mechanical Soft shaft

Washing N/A N/A

Rolling bearings With shielded balls With shielded balls

Flange DIN EN1092-2 DIN EN1092-2

Material

Pump body Cast iron GG25 Cast iron GG25

Impeller Cast iron GG20 / GGG40/

Bronze CAC 406 Bronze CAC406

Shaft AISI 431 stainless steel AISI 431 stainless steel

Manifold ring Bronze CAC406 Bronze CAC406

Gaskets EPDM -

Plant Inside (under the roof) Inside (under the roof)

Noise data table

Motor power MEC

50 Hz

2900 min-1

(2 poles) 1450 min-1

(4 poles)

Overall Sound Pressure Level dB(A)

0.37 71 56 44

0.55 80 59 44

0.75 80 59 44

1.1 90 62 49

1.5 90 62 49

2.2 100 67 53

3 100 67 53

4 112 64 56

Instruction and Maintenance Manual

5.5 132 67 56

7.5 132 67 56

11 160 75 67

15 160 75 67

18.5 180 75 67

22 180 75 67

30 200 75 70

37 225 75 70

45 225 75 70

55 250 77 70

75 280 78 73

90 280 78 73

110 315 80 77

132 315 80 77

160 315 80 77

200 315 80 77

250 355 86 84

315 355 86 84

355 355 86 84

5. OPERATING LIMITS

Unless EBARA has been previously notiﬁed, in general, the equipment must be mounted

inside (below roof level), in adequately-ventilated rooms and where access is restricted

to authorised personnel, in addition to working within the following limits:

- Ambient temperature: must not exceed 40°C and the average temperature over 24

hours must not be above 35°C. The minimum air temperature in the space will be 4°C.

- Humidity: humidity must not exceed 50% and a temperature of 40°C. Higher humid-

ity levels can be accepted at very low temperatures.

- Pollution: the air inside the aforesaid space must be clean and non-corrosive or,

failing that, the pollution level must be low and electrically non-conductive through

condensation.

- Altitude: the altitude where the pump is installed must not exceed 1000 metres.

If the conditions of use are dierent from those indicated, EBARA must be notiﬁed of

these conditions; such as installation outdoors or in places open to the public; any

temperature, humidity, and altitude values other than those described; heavy pollution

due to dust, fumes, vapours or salt; exposure to strong magnetic or electrical ﬁelds;

locations exposed to risks of explosion, mechanical vibrations and signiﬁcant shocks.

Instruction and Maintenance Manual

6. INSTALLATION

6.1 INSTALLATION POINT

(1) Install the equipment in an easily-accessible place in order to carry out overhauls and

maintenance.

(2) Prohibit access to unauthorised persons by using related closure points.

(3) Place the equipment as close as possible to the water supply, making sure that the

dierence in height between the water surface and the pump shaft is minimal and that

the length of the suction pipe is as short as possible.

(4) The sum between the suction pressure and the gauge pressure of the pump must

always be less than the minimum permissible pressure (see section 4 - Speciﬁcations).

6.2 LIFTING

In order to move the electric pump or the individual pump you must lift the load by

means of straps, creating an angle of less than 60 degrees, as shown in the ﬁgure:

One must make sure that there is no personnel

exposed to danger during the operation. To

lift the assembly, do not use the attachment

points of the motor or the pump since they

may not have been designed to bear such a

weight.

6.3 CEMENTED BASE

One should note that electric pump units must be ﬁxed in a stable and durable manner

to a solid cemented base so that the axes of the pumps and the motors always remain

correctly and securely aligned. The cement base must be suciently rigid, permanent

and aligned, as well as being located on ground capable of bearing a permitted load

of adequate support facilities. The top part of the unit must rest completely on the ce-

mented base; once the top part has been secured, the alignment of the coupling needs

to be checked again.

If you need to limit, as much as possible, the vibrations of the equipment by using elastic

dampers, the latter should not be placed directly under the metal proﬁles, but instead,

you will need to produce a solid plate with a weight of one and a half times or two times

the overall weight of the unit, arranging the dampers under the assembly that combines

the top part with the plate. There are several valid methods although this plate is typical-

ly made with concrete and its dimensions exceed those of the top by about 0.2 metres

on all four sides.

Instruction and Maintenance Manual

Generally, an incorrect cement base is the cause of premature failure and this invali-

dates the warranty period.

6.4 PIPES

The installation must be done according to the arrangement shown in the Figure:

1 Pump

2 Motor

3 Mount

4 Elastic sleeve

5 Check valve

6 Shut-o valve

7 Bottom valve

8 Eccentric reduction

Min

≥2D

1~1.5D

1. Make sure that the suction and delivery ducts do not transmit any stresses to the

pump, by installing suciently strong supports. If this is not done, the pump could

become misaligned and even break.

2. Fit any check valves (between the pump and the delivery valve) in the following cas-

es:

- In very long pipes.

- If the head is high.

- If the operation is automatic.

- When you ﬁll a tank under pressure.

- When the operation is in parallel.

3. Mount air relief valves, if required, in those parts of the installation where it is impos-

sible to avoid the formation of air bubbles. However, they must not be ﬁtted at points

where the pressure is less than atmospheric pressure, since the valve would suck in

air rather than expel it.

Instruction and Maintenance Manual

4. To reduce the eect of a water hammer, mount a check valve with spring.

5. Suction systems:

- The bottom end of the suction pipe must remain submerged and at a depth of at

least twice the diameter of the pipe (2D) and at a distance from the bottom of 1

time to 1 and a half times the diameter (1~1.5 D).

- Fit a bottom valve with a ﬁlter at the beginning of the suction pipe to prevent the

entry of any foreign bodies.

- The suction pipe will be installed with an upward gradient towards the pump (of

more than 1%) to avoid the formation of air bubbles. The pipes and other acces-

sories must be connected in such a way so as not to create any air intake between

the dierent elements.

- Make sure that the suction pipe is as short and straight as possible and try to

avoid any unnecessary curves or additional length. Do not install any shut-o

valve in this section.

- Unless the installation project indicates something dierent, use the dimensions

for the suction pipe and eccentric reduction recommended in this Table. The

eccentric reduction will be installed with an upward gradient towards the pump to

avoid the formation of air bubbles.

DN suct. x DN

delivery

1500 RPM 3000 RPM

DN pipe Reduction DN pipe Reduction

50 x 32 65 65x50 80 80x50

65 x 40 80 80x65 100 100x65

65 x 50 100 100x65 125 125x65

80 x 65 125 125x80 150 150x80

100 x 80 150 150x100 200 200x100

125 x 100 200 200x125 250 250x125

150 x 125 250 250x150 300 300x150

200 x 150 300 300x200 --- ---

6. In systems where suction is operational:

- The installation of a shut-o valve is recommended in the suction pipe to facilitate

dismantling and overhauls.

- Install the suction pipe with an upward gradient towards the pump to avoid the

formation of air bubbles.

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