EBARA 25EVMS85.37 Manual de usuario

CF1212U-H001 REV.1

- 1 -

EBARACORPORATION

EBARA Stainless Steel Vertical

Multi-Stage Pump

Model EVMS/EVMSL

Instruction Manual

CAUTION

Thank you for choosing the EBARA Model EVMS/EVMSL Stainless Steel Vertical Multi-stage Pump. EBARA

takes every caution in manufacturing the product for safe use by the customer. However, handling this pump

in an inappropriate manner may reduce its functional capacity and result in an accident.

This operation manual explains the proper procedures concerning the installation, operation, and

maintenance of the product. This manual should be read before conducting operation and maintenance and

inspections on this pump.

Installation personnel must provide copies of this manual to the customer’s pump operation, maintenance and

inspection personnel. Keep this manual in a safe place where it can be consulted at any time.

To installation personnel:

Be sure to issue the customer’s pump operation, maintenance, and inspection personnel with copies of this

manual.

Contents

１Warnings ............................

７Maintenance........................

２Safety Cautions ......................

1. Daily inspection ...................... 17

３Delivery checks ......................

2. Long-term pump stoppage and storage .. 18

1. Pump................................ 5

3. Consumable parts .................... 19

Nameplate ........................... 5

８Trouble shooting....................

４Specifications........................

９Construction .......................

５Installation..........................

10 Mechanical Seal Replacement Procedures 23

1. Installation location ................... 11

1. Disassembly ......................... 23

2. Piping .............................. 11

2. Reassembly ......................... 24

3. Electrical wiring ...................... 13

11 Limited warranty....................

６Operation ...........................

1. Prior to start up ...................... 14

2. Operation ........................... 16

3. Stopping ............................ 16

4. Operate cautions .................... 16

Be sure to issue the customer’s

pump operation personnel with

copies of this manual

EVMS/EVMSL

- 2 -

１

Warnings

Warnings in this manual provide information needed for safe operation of the pump, and instructions for

preventing danger or injury to you or other people. So that you will know the degree and imminence of

danger that warnings signify, they are divided into two grades, WARNING and CAUTION, according to

the seriousness of what will happen if their instructions are not heeded. Both grades of warning contain

important safety information; carry out all the instructions that they give, without fail.

Warning grade

Meaning

Warning

Potentially hazardous situation. Failure to follow the instructions could

result in death or serious injury.

Caution

Failure to follow the instructions given could result in minor injury, or

damage to the pump.

Note

Used to emphasize important information.

Meanings of symbols accompanying WARNINGs and CAUTIONs.

Indicates prohibition (that something must NOT be done).

Precisely what must not be done is indicated by pictures or words either

inside the circle of the symbol or close to it.

Indicates an imperative (that something MUST be done).

Precisely what must be done is indicated by pictures or words close to

the symbol.

EVMS/EVMSL

- 3 -

EBARACORPORATION

２

Safety Cautions

Warning

Carry out the construction correctly in accordance with

electrical equipment technical standards, interior wiring

regulations, Building Standards and applicable regulations.

Work safely by confirming weight and form from the outline

drawing, catalog, etc. prior to hoisting.

Never use the product or install parts while it is hoisted. This is

very dangerous. The equipment may fall.

Fasten the pump securely with anchor bolts to prevent it

overturning.

Perform wiring work correctly as specified by electrical facility

technical standards and extension codes. Incorrect wiring

could result in electric shock and fires.

Install and ground an earth cable. Electric shock could occur

during accidents or electric leakage.

To prevent electric shocks, install a dedicated earth leakage

breaker.

Before wiring the motor, measure the insulation resistance

using an insulation tester (DC 500 V megger). Confirm that

there is a value of 5MΩor more between the motor lead wire

and the ground.

Do not operate the pump for more than 1 minute with the

discharge valve left closed.

The pressure within the pump will rise, and the casing or plugs

may be damaged.

Do not touch the rotating parts such as the spindle, shaft

couplings, V-pulleys, etc. while the pump is running. Since

these parts rotate at high speed, doing so could result in

injury.

Disassembly and repair of the pump should only be performed

by specialist maintenance technicians. Otherwise, error by

personnel could result in electric shock, and the pump

catching fire or operating abnormally and causing injury.

Always turn the power switch OFF before inspecting or

repairing the pump. Not doing so could result in the pump

starting up suddenly in auto operation, exposing personnel to

danger.

If there is a power failure, turn the power switch off.

Otherwise, the pump may start-up suddenly when the power

supply is resumed, exposing personnel to danger.

For disassembly and inspections, close the suction and

discharge valves, drain the casing drain, and ensure that the

pump pressure is not abnormal or negative. The pump may

undergo abnormal rotation while the work is incomplete,

resulting in damage to the casing.

In facilities with living matter (fish farms, fish preserves,

aquariums, etc.), always prepare a spare pump, as oxygen

deprivation may result due to pump failures.

EVMS/EVMSL

- 4 -

Caution

Do not operate the pump with 50 Hz specifications at 60 Hz.

Doing so will overload the pump, causing the motor to burn.

Do not operate the pump with 60 Hz specifications at 50 Hz.

Doing so will cause the pump to perform poorly.

If you have purchased a standard pump, refer to the standard

specifications shown below. The optional specifications indicate

changes made to some pumps to meet the needs of some

customers. Be sure not to operate your pump outside of the

ranges shown in the applicable specifications.

The equipment cannot be used for food-related fluid transport.

In important facilities (computer cooling facilities, freezer cooling

facilities, etc.) always prepare a spare pump for pump failures.

There will be entrainment of cutting lubricant contained in the

piping system, as well as rubber mould releasing agent, foreign

material, etc. Carry out flushing sufficient for the equipment, and

confirm before use.

Make sure that the floor surface where the pump is installed has

been waterproofed and treated for waste water. If it has not,

severe damage could be caused should leakage occur.

Make sure that any one of three terminals of the three-phase

motor is not loose or disconnected. Running the motor with only

two terminals connected could a phase interruption, burning out

the motor.

Pump failures are possible when operated with less flow rate

than appropriate for the pump size (nominal inlet bore diameter

in mm) (e.g. 50 L/min for size of 50 mm). When operation may

occur with a small flow rate, install relief pipes, etc. to ensure

operation at or above this flow.

If air is entrained during pumping and is not discharged, the

bearings and shaft seals may be damaged, and pumping may

be impossible. Avoid this situation.

Do not touch the pump when the liquid handled is hot water.

Burns may result from high temperatures.

Do not touch the motor. The motor’s surfaces will be hot, and

you could get burned if you touch them.

Do not cover the motor with a blanket or cloth. Doing so could

over heat the motor, setting a fire.

To prevent an accident if the pump stops running or an

abnormality occurs, immediately turn off the power switch.

Contact the shop from where you ordered the pump, or EBARA

to perform an inspection and maintenance on the pump.

When the pump is out of use for prolonged periods such as the

wintertime, water inside the pump could freeze, causing

damage to the pump. Accordingly, in such situations, either

drain all water from the pump or provide thermal insulation to

prevent the water from freezing.

Never disassemble the motor. When disassembly is necessary,

contact EBARA.

EVMS/EVMSL

- 5 -

EBARACORPORATION

EBARA

Serial number

Model

Head (m)

Electrical appliance and material

safety law indication marks etc.

Capacity (L/min)

The number of motor phase

number

Rated voltage (V)

Title (EBARA Pump)

Temperature range for liquid

handled (C)

Rated output (kW)

Rated frequency (Hz)

Rated input (W)

Company name

３

Delivery checks

Check the following points as soon as the pump is delivered.

１．Pump

Check that no parts were damaged due to accidents during transport, and that bolts and nuts

have not become loose.

２．Nameplate

The pump’s basic specifications are inscribed on the nameplate. Check the nameplate to ensure

that the equipment is as ordered.

Caution

Do not operate 50 Hz pumps at 60 Hz. The pump will

overload, and the motor will burnout.

Do not operate 60 Hz pumps at 50 Hz. Pump performance

will suffer.

1.1 kW or less models and 40EVMS(L)351.5, 50EVMS(L)151.5 (excluding 400 V class)

1.5 kW or higher models, but 40EVMS(L)351.5, 50EVMS(L)151.5 only 400 V class

Fig. 1 Data on pump nameplate

屋外用

min-1

Speed(min-1)

Speed (min-1)

Serial number

Model

Capacity (L/min)

Head (m)

Rated frequency (Hz)

Title (EBARA Pump)

Rated output (kW)

Company name

EVMS/EVMSL

- 6 -

４

Specifications

Refer to the nameplate for the head, capacity (CAP.) and speed, etc. of the pump you have purchased.

Additional specifications are indicated in the following table.

The pressure units used in this manual are as per the International System of Unit (SI). Reference values

are also provided in the brackets. { for reference.}

Caution

For customers purchasing standard goods, refer to the

standard specifications column.

There may also be specifications changes in the form of

optional specifications, on request of the customer.

Do not use the equipment beyond the scope of the

specifications.

The equipment cannot be used for food-related fluid transport.

In facilities with living matter (fish farms, fish preserves,

aquariums, etc.), always prepare a spare pump, as oxygen

deprivation may result due to pump failures.

In important facilities (computer cooling facilities, freezer

cooling facilities, etc.) always prepare a spare pump for pump

failures.

There will be entrainment of cutting lubricant contained in the

piping system, as well as rubber mould releasing agent,

foreign material, etc. Carry out flushing sufficient for the

equipment and confirm before use.

EVMS/EVMSL

- 7 -

EBARACORPORATION

■Standard specifications

Liquid handled

Fresh water (pH: 5.8 to 8.6) *1 cutting lubricant, cleaning fluid etc *2

-15C to 120C

Model EVMS/EVMSL pumps conform to the “Permeability standards for

water supply unit equipment” as per the Japanese Water Works Law.

Suction total head *3

(20℃)

Other than followings : -6 m

【50Hz】50EVMS…371～400L/min : -5 m

401～480L/min : -3 m

【60Hz】32EVMS…141～160L/min : -5 m

40EVMS…281～300L/min : -5 m

50EVMS…281～400L/min : -5 m

401～440L/min : -4 m

441～500L/min : -2 m

Maximum working pressure

Refer to table 2.1～2.2.

Standard allowable

suction pressure

Construction

Impeller

Closed, single liner

Casing

Lower: Inline

Intermediate: Return vane

Shaft seal

Mechanical seal

Bearing

Upper: sealed ball bearing (motor interior)

lower: submarged sleeve bearings

Flange



25, 32, 40, 50 :

Equivalent to JIS10K

standard

Models with maximum working pressure 1.37

MPa {14 kgf/cm2} or less

Equivalent to JIS20K

Models with maximum working pressure 2.45

MPa {25 kgf/cm2} or less

Material

Lower casing

Model EVMS : SUS304 Model EVMSL : SUS316

Intermediate casing

Impeller

Shaft sleeve

Shaft

Model EVMS : SUS304 Model EVMSL : SUS316

（But 32EVMS(L)1967.5 and 9 stages or higher models of 50EVMS(L)

use SUS329A）

Wear ling

Model EVMS : PPS / SUS304 Model EVMSL : PPS / SUS316

Motor

Phase / pole

3 phase / 2 pole

Voltage

50Hz : 200V 60Hz : 200/220/230V

Type

Totally enclosed fan cooling type (outdoor)

Efficiency

IE3 (Premium efficiency) *6 *7

Installation location

Indoor or outdoor, ambient temperature 0 to 40C

Relative humidity 85% (no condensation)

Altitude 1,000 m or less

There should be no corrosive or explosive gas, steam, etc.

*1 Fresh water refers to tap water, industrial water or well water, with a temperature of 0 to 80C, a

pH of 5.8 to 8.6 and a chlorine ion concentration of 200 mg/L or less.

Contact EBARA regarding low-temperature liquid between -15 and 0C and high-temperature

liquid exceeding 80℃.

*2 Liquid that is not a slurry, not containing solid material (special specifications arise depending on

the property of the liquid)

*3 The pump’s total suction head is shown at a water temperature of 20℃. When the water differs

from this temperature, and for particular hot water temperatures, suction performance is reduced.

Please discuss the situation with EBARA.

*4 The tolerance value for voltage fluctuations is 5% or less, and the tolerance value for frequency

fluctuations is 2% or less. For simultaneous fluctuations of voltage and frequency, the sum of

their absolute values is within 5%. However in either case, the motor’s characteristics,

temperature rise, etc. are not in accordance with the rated values.

EVMS/EVMSL

- 8 -

*5 In the case of inverter drive, be careful of the following points, and discuss the situation with the

manufacturer of the inverter used.

(1) Ensure that the motor’s operating output is 90% or less of the rated output.

(2) Set the output frequency range at 60 to 95% of the mains power frequency.

(3) With inverter drive, magneto-sonic waves are produced by the motor, which may sound

quite harsh in comparison with mains power drive.

(4) Avoid a rotational speed range in which the pump and motor resonate during normal

operation.

*6 0.75 kW or higher models is cleared the Top Runner Standards.

*7 0.55 kW or less models is equivalent to premium efficiency (EBARA own setting).

■Optional specifications

Different

rubber material

NBR (Liquid temperature : 0℃～60℃), EPDM

Different

mechanical seal

SiC/SiC type (Liquid temperature : 0℃～90℃)

Purified water type (Liquid temperature : 25±5℃)

Different

motor

Different voltage・Special different voltage

Terminal box position change (every 90)

Tropical treatment, Anticorrosion treatment

Painting in designated color

Pull out the stage (1～2 stage)

Oil free treatment

■Table 1 Minimum flow (L/min)

50Hz

Flooding or positive suction

When sucking

Size

Liquid temperature :

～80℃*1

More than 81 ℃

～40℃

More than 41 ℃

25S

Unusable

5 *2

11 *2

130

50L

14 *2

180

60Hz

Flooding or positive suction

When sucking

Size

Liquid temperature :

～80 ℃*1

More than 81 ℃

～40 ℃

More than 41 ℃

25S

Unusable

5 *2

8 *2

14 *2

170

50L

220

Note) *1 : Please avoid continuous operation, this value is applied in temporary operation.

*2 : But following models is equivalent to value of More than 81 ℃.

50Hz : 32EVMS(L)2755.5・50EVMS(L)17515・50EVMS(L)16518

:60Hz : 32EVMS(L)1967.5・40EVMS(L)16611・50EVMS(L)12618

EVMS/EVMSL

- 9 -

EBARACORPORATION

■Table 2.1 Maximum working pressure and Standard allowable suction pressure (50Hz)

Size

Model

Maximum working pressure

Standard allowable suction pressure

1.37MPa(14kgf/cm2)

2.45MPa(25kgf/cm2)

MPa

kgf/cm2

25S

25EVMS(L)85.37

85.37

125.55

165.75

2551.1

3351.5

3952.2

0.92

9.4

25EVMS(L)125.55

0.70

7.1

25EVMS(L)165.75

0.48

4.9

25EVMS(L)2551.1

1.06

10.8

25EVMS(L)3351.5

0.62

6.3

25EVMS(L)3952.2

0.29

25EVMS(L)45.37

45.37

65.55

85.75

1251.1

1651.5

2352.2

3253.0

1.07

10.9

25EVMS(L)65.55

0.92

9.4

25EVMS(L)85.75

0.78

25EVMS(L)1251.1

0.48

4.9

25EVMS(L)1651.5

0.18

1.8

25EVMS(L)2352.2

0.75

7.6

25EVMS(L)3253.0

0.09

0.9

32EVMS(L)25.37

25.37

35.55

45.75

551.1

751.5

1152.2

1553.0

2054.0

2755.5

1.18

32EVMS(L)35.55

1.09

11.1

32EVMS(L)45.75

0.99

10.1

32EVMS(L)551.1

0.88

32EVMS(L)751.5

0.69

32EVMS(L)1152.2

0.30

3.1

32EVMS(L)1553.0

0.99

10.1

32EVMS(L)2054.0

0.51

5.2

32EVMS(L)2755.5

0.08

0.8

40EVMS(L)25.75

25.75

351.5

652.2

853.0

1054.0

1555.5

2157.5

23511

1.16

11.8

40EVMS(L)351.5

1.05

10.7

40EVMS(L)652.2

0.74

7.5

40EVMS(L)853.0

0.53

5.4

40EVMS(L)1054.0

0.32

3.3

40EVMS(L)1555.5

0.88

40EVMS(L)2157.5

0.31

3.2

40EVMS(L)23511

0.04

0.4

50EVMS(L)151.1

151.1

252.2

353.0

454.0

655.5

857.5

12511

17515

1.22

12.4

50EVMS(L)252.2

1.07

10.9

50EVMS(L)353.0

0.92

9.4

50EVMS(L)454.0

0.77

7.8

50EVMS(L)655.5

0.48

4.9

50EVMS(L)857.5

0.18

1.8

50EVMS(L)12511

0.67

6.8

50EVMS(L)17515

0.08

0.8

50L

50EVMS(L)151.5

151.5

253.0

354.0

455.5

657.5

9511

13515

16518

1.19

12.1

50EVMS(L)253.0

1.02

10.4

50EVMS(L)354.0

0.85

8.7

50EVMS(L)455.5

0.68

6.9

50EVMS(L)657.5

0.34

3.5

50EVMS(L)9511

0.90

9.2

50EVMS(L)13515

0.22

2.2

50EVMS(L)16518

0.00

EVMS/EVMSL

- 10 -

■Table 2.1 Maximum working pressure and Standard allowable suction pressure (60Hz)

Size

Model

Maximum working pressure

Standard allowable suction pressure

1.37MPa(14kgf/cm2

)

2.45MPa(25kgf/cm2

)

MPa

kgf/cm2

25S

25EVMS(L)56.37

56.37

76.55

106.75

1461.1

2061.5

2962.2

0.96

9.8

25EVMS(L)76.55

0.80

8.2

25EVMS(L)106.75

0.56

5.7

25EVMS(L)1461.1

0.24

2.4

25EVMS(L)2061.5

0.84

8.6

25EVMS(L)2962.2

0.11

1.1

25EVMS(L)26.37

26.37

36.55

46.75

761.1

961.5

1462.2

1963.0

2364.0

1.15

11.7

25EVMS(L)36.55

1.05

10.7

25EVMS(L)46.75

0.94

9.6

25EVMS(L)761.1

0.62

6.3

25EVMS(L)961.5

0.41

4.2

25EVMS(L)1462.2

0.96

9.8

25EVMS(L)1963.0

0.43

4.4

25EVMS(L)2364.0

0.006

0.06

32EVMS(L)26.75

26.75

361.1

461.5

662.2

863.0

1164.0

1565.5

1967.5

1.09

11.1

32EVMS(L)361.1

0.95

9.7

32EVMS(L)461.5

0.81

8.3

32EVMS(L)662.2

0.53

5.4

32EVMS(L)863.0

0.25

2.5

32EVMS(L)1164.0

0.92

9.4

32EVMS(L)1565.5

0.36

3.7

32EVMS(L)1967.5

0.01

0.1

40EVMS(L)16.75

16.75

261.5

362.2

463.0

664.0

865.5

1167.5

16611

1.21

12.3

40EVMS(L)261.5

1.05

10.7

40EVMS(L)362.2

0.90

9.2

40EVMS(L)463.0

0.74

7.5

40EVMS(L)664.0

0.42

4.3

40EVMS(L)865.5

0.11

1.1

40EVMS(L)1167.5

0.72

7.3

40EVMS(L)16611

0.04

0.4

50EVMS(L)161.5

161.5

263.0

365.5

567.5

7611

10615

12618

1.16

11.8

50EVMS(L)263.0

0.95

9.7

50EVMS(L)365.5

0.74

7.5

50EVMS(L)567.5

0.32

3.3

50EVMS(L)7611

0.98

50EVMS(L)10615

0.35

3.6

50EVMS(L)12618

0.12

1.2

50L

50EVMS(L)162.2

162.2

264.0

367.5

5611

7615

9618

1.12

11.4

50EVMS(L)264.0

0.87

8.9

50EVMS(L)367.5

0.63

6.4

50EVMS(L)5611

0.13

1.3

50EVMS(L)7615

0.72

7.3

50EVMS(L)9618

0.23

2.3

Este manual sirve para los siguientes modelos

177

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