Grundfos CRN Series Installation And Operating Instructions Manual

CR, CRI, CRN, CRT

ATEX-approved pumps

Installation and operating instructions

GRUNDFOS INSTRUCTIONS

2

3

Table of contents

CR, CRI, CRN, CRT

ATEX-approved pumps

English (GB)

Installation and operating instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Български (BG)

Упътване за монтаж и експлоатация. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Čeština (CZ)

Montážní a provozní návod. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Deutsch (DE)

Montage- und Betriebsanleitung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Dansk (DK)

Monterings- og driftsinstruktion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Eesti (EE)

Paigaldus- ja kasutusjuhend. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Español (ES)

Instrucciones de instalación y funcionamiento . . . . . . . . . . . . . . . . . . . . . . . . . 83

Suomi (FI)

Asennus- ja käyttöohjeet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Français (FR)

Notice d'installation et de fonctionnement. . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Ελληνικά (GR)

Οδηγίες εγκατάστασης και λειτουργίας . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Hrvatski (HR)

Montažne i pogonske upute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

Magyar (HU)

Telepítési és üzemeltetési utasítás. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

Italiano (IT)

Istruzioni di installazione e funzionamento . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

Lietuviškai (LT)

Įrengimo ir naudojimo instrukcija . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174

Latviešu (LV)

Uzstādīšanas un ekspluatācijas instrukcija. . . . . . . . . . . . . . . . . . . . . . . . . . . 187

Nederlands (NL)

Installatie- en bedieningsinstructies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200

Polski (PL)

Instrukcja montażu i eksploatacji . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

Português (PT)

Instruções de instalação e funcionamento . . . . . . . . . . . . . . . . . . . . . . . . . . . 226

Table of contents

4

CR, CRI, CRN, CRT

ATEX-approved pumps

Română (RO)

Instrucţiuni de instalare şi utilizare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239

Srpski (RS)

Uputstvo za instalaciju i rad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252

Русский (RU)

Руководство по монтажу и эксплуатации . . . . . . . . . . . . . . . . . . . . . . . . . . 265

Svenska (SE)

Monterings- och driftsinstruktion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279

Slovensko (SI)

Navodila za montažo in obratovanje. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292

Slovenčina (SK)

Návod na montáž a prevádzku . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305

Türkçe (TR)

Montaj ve kullanım kılavuzu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318

Українська (UA)

Інструкції з монтажу та експлуатації . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331

中文 (CN)

安装和使用说明书 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345

Norsk (NO)

Installasjons- og driftsinstruksjoner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356

ﺔﻳﺑﺭﻌﻟﺍ (AR)

ﻝﻳﻐﺷﺗﻟﺍ ﻭ ﺏﻳﻛﺭﺗﻟﺍ ﺕﺎﻣﻳﻠﻌﺗ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381

English (GB)

5

English (GB) Installation and operating instructions

Original installation and operating instructions

These supplementary installation and operating

instructions apply to the ATEX-approved Grundfos

CR pumps.

The CR pumps comply with ATEX Directive 2014/34/

EU.

The pumps are suitable for use in zones classified

according to Directive 1999/92/EC. In case of doubt,

consult the above-mentioned directives, or contact

Grundfos.

CONTENTS

Page

1. General information

1.1 Hazard statements

The symbols and hazard statements below may

appear in Grundfos installation and operating

instructions, safety instructions and service

instructions.

The hazard statements are structured in the

following way:

1. General information

5

1.1 Hazard statements

5

1.2 Notes

6

2. Related installation and operating

instructions

6

3. Receiving the product

6

4. Explosion protection document

6

5. Identification

7

5.1 Nameplate

7

5.2 Type key

8

5.3 Drive-end motor bearing

9

6. Scope of ATEX categories for CR

pumps

10

7. Installing the product

11

7.1 Pump with single seal

11

7.2 Pump with MAGdrive

11

7.3 Pump with double seal

12

7.4 Bare-shaft pumps

12

8. Operating conditions

13

8.1 Maximum ambient temperature

13

8.2 Maximum liquid temperature

13

8.3 Temperature calculation

14

9. Before starting up and during operation

of an ATEX-approved pump

15

9.1 Checklist

15

10. Maintenance and inspection

17

10.1 Tightening torques

17

10.2 Shaft seal

17

Read this document before installing the

product. Installation and operation must

comply with local regulations and accepted

codes of good practice.

DANGER

Indicates a hazardous situation which, if

not avoided, will result in death or serious

personal injury.

WARNING

Indicates a hazardous situation which, if

not avoided, could result in death or

serious personal injury.

CAUTION

Indicates a hazardous situation which, if

not avoided, could result in minor or

moderate personal injury.

SIGNAL WORD

Description of hazard

Consequence of ignoring the warning.

- Action to avoid the hazard.

English (GB)

6

1.2 Notes

The symbols and notes below may appear in

Grundfos installation and operating instructions,

safety instructions and service instructions.

2. Related installation and operating

instructions

The X on the nameplate indicates that the pump is

subject to special conditions for safe use as

described in these instructions. The nameplate

markings are described in the table in section

5. Identification.

In addition to these instructions, observe the

following installation and operating instructions:

• CR, CRI, CRN: for standard pumps

• CR, CRI, CRN, CRT: removal of transport bracket

and fitting of motor. For pumps without motor

• MG: Grundfos standard motors.

For special versions of the CR pumps, observe the

relevant installation and operating instructions:

•CRN MAGdrive

• CR, CRI, CRN: double seal, back-to-back

• CR, CRI, CRN: double seal, tandem

• MG: Grundfos standard motors.

3. Receiving the product

If the pump is delivered without a motor, mount the

motor and then adjust the chamber stack and shaft

seal according to the procedure described in the

installation and operating instructions, "Removal of

transport bracket and fitting of motor", supplied with

the pump.

4. Explosion protection document

The combination of CR pump and all monitoring

equipment must be described in the explosion

protection document according to Directive 1999/92/

EC.

Observe these instructions for explosion-

proof products.

A blue or grey circle with a white graphical

symbol indicates that an action must be

taken.

A red or grey circle with a diagonal bar,

possibly with a black graphical symbol,

indicates that an action must not be taken

or must be stopped.

If these instructions are not observed, it

may result in malfunction or damage to the

equipment.

Tips and advice that make the work easier.

English (GB)

7

5. Identification

5.1 Nameplate

The nameplate on the pump head gives the following

details:

• data of standard pump

• data of ATEX marking

– technical file number

– serial number

– Ex category.

Fig. 1 Example of a CR nameplate with ATEX

approval

Data for the ATEX marking only refers to the part

including the coupling. The motor has a separate

nameplate.

TM07 5039 0719

DK-8850 Bjerringbro,Denmark

Model-PN-SN

Type

Hz

pmax/tmax

Tech file no

Made in Denmark

P code: P115482

bar/°C

min

-1

excl.motor 500kg

/hm

3

kW [P2]

H/H max m 0(,

ȘS 

B-96123526-98438832

CR255-1-1A-F-A-E-HQQE

435/248

2917

64

CCW

98964685X

99356347

50/60

4.0

0.7 69.7

14.2/22.1

21

435-580/176

II 3G Ex h IIC T4...T3 Gb

ATEX rating

Pos. Description

1

II

Group

I: Underground in mines

II: Surface equipment

3G

Category

M2: Mining

2G, 3G: Gas/vapours

2D, 3D: Dust

Ex h Protection type

IIC

Environment group

IIC: Gas/vapours

IIIC: Combustible dust

IIIB: Non-magnetic dust

T4...T3

Maximum surface

temperature according to

80079-36.

Temperature range or

specific temperature.

T4...T3: Gas

T125 °C: Dust

Gb

EPL (Equipment Protection

Level).

Gb, Gc: Gas

Db, Dc: Dust

2

98964685

File number for technical file

stored at DEKRA.

X

Indicates that the equipment

is subject to special

conditions for safe use. The

conditions are mentioned in

this document.

English (GB)

8

5.2 Type key

5.2.1 Type key example

5.2.2 Key to codes for pump version

Example CR 32- 2 1- X- X- X- X- XXXX

Type range: CR, CRN

Rated flow rate in m

3

/h

Number of stages

Number of impellers with reduced diameter

Code for pump version

Code for pipe connection

Code for materials

Code for rubber pump parts

Code for shaft seal

Codes for pump version

A Basic version

BOversize motor

E Pump with certificate

H Horizontal version

I Different pressure rating

K Pump with low NPSH

M Magnetic drive

O Cleaned and dried

P Undersize motor

S High-pressure pump

T Thrust handling device (THD)

U ATEX approved pump

Y Electropolished

Z Pumps with bearing flange

English (GB)

9

5.3 Drive-end motor bearing

Make sure to use the correct type of drive-end (DE)

motor bearing for the bare-shaft pump. Please check

the specific pump range and pump version stated on

the nameplate and select the corresponding DE

bearing.

1)

Refer to the codes for pump version in section 5.2 Type key.

2)

Factory product variants (FPV).

DE bearing

CR 1-64 pump range

DE bearing

CR 95-255 pump range

Pump version

1)

Deep-groove ball

bearing

(62/63xx)

Angular contact

bearing

(73xx)

Deep-groove ball

bearing

(62/63xx)

Angular contact

bearing

(73xx)

A Standard pump 0.37 - 3 kW 4-45 kW 75-200 kW 5.5 - 55 kW

T

Pump with thrust

handling device

(THD)

2)

- - 5.5 - 55 kW Not allowed

Z

Pump with bearing

flange

2)

0.37 - 45 kW Not allowed 5.5 - 200 kW Not allowed

English (GB)

10

6. Scope of ATEX categories for CR pumps

1)

EPL: Equipment Protection Level.

2)

Important: The link between groups, categories

and zones is explained in Directive1999/92/EC.

Note that this is a minimum directive. Some EU

countries may therefore have stricter local rules.

The user or installer is always responsible for

checking that the group and category of the

pump correspond to the zone classification of the

installation site.

Directive ATEX-approved CR pumps

2014/34/EU GROUP I

Category M

Environment:

1 2

EPL

1)

: Ma Mb

1999/92/EC

2)

--

CR pumps None

CR

CRI

CRN

Motors None None

2014/34/EU GROUP II

Category 1 Category 2 Category 3

Environment:

G D G D G D

EPL

1)

: Ga Da Gb Db Gc Dc

1999/92/EC

2)

Zone 0 Zone 20 Zone 1 Zone 21 Zone 2 Zone 22

CR pumps None None

CR

CRI

CRN

CRT

CR

CRI

CRN

CRT

CR

CRI

CRN

CRT

CR

CRI

CRN

CRT

Motors None None

• II 2G Ex eb

IIC T3 Gb

• II 2G Ex db

IIC T4 Gb

• II 2D Ex tb

IIIC T125 °C

Db

• II 2G Ex eb

IIC T3 Gb

• II 2G Ex db

IIC T4 Gb

• II 3D Ex tc

IIIC T125 °C

Dc

English (GB)

11

7. Installing the product

Fig. 2 Positioning the pump

7.1 Pump with single seal

7.1.1 Non-flammable liquids

Category 2G/D/M2

Make sure that the pump is filled with pumped liquid

during operation. If this is not possible, ensure

appropriate monitoring, for example dry-running

protection to stop the pump in case of malfunction.

Category 3G/D

No additional monitoring, for example dry-running

protection, is required for the pump system.

7.1.2 Flammable liquids, pump unit

Category 2G/D/M2 and 3G/D/M2

Make sure that the pump is filled with pumped liquid

during operation. If this is not possible, ensure

appropriate monitoring, for example dry-running

protection to stop the pump in case of malfunction.

Ensure sufficient ventilation around the pump.

The leakage rate of a shaft seal is 1-10 ml for each

24 hours of operation. For some types of liquids, the

leakage will not be visible due to evaporation. During

the run-in period, larger leakage of 1-20 ml per 24

hours of operation can occur. Liquids like oil or

glycol-water mixtures evaporate slower than water

and will leave residuals. Ensure proper ventilation to

maintain the zone classification.

Category M2

Protect the pump with a guard to prevent damage

from falling or ejected objects.

7.2 Pump with MAGdrive

See the CRN MAGdrive installation and operating

instructions at http://net.grundfos.com/qr/i/

96464310.

DANGER

Explosion risk

Death or serious personal injury

- Do not let the pump run dry.

- Make sure that the pump is filled with

pumped liquid during operation.

DANGER

Explosion risk

Death or serious personal injury

- Replace the shaft seal if increased

leakage is observed.

DANGER

Explosion risk

Death or serious personal injury

- Always install the pump with the motor

above the pump to avoid overheating of

the motor bearings. See fig. 2.

The responsibility for checking the

functions of the dry-running protection,

such as flow rate, sealing pressure and

temperature of the barrier or flushing

liquid, rests with the installer or owner.

TM01 1241 4102

DANGER

Explosion risk

Death or serious personal injury

- Always fill the pump with liquid and

ensure that the required minimum flow

rate is obtained.

English (GB)

12

7.3 Pump with double seal

Back-to-back or tandem

7.3.1 Non-flammable liquids, pump unit

Category 2G/D

Make sure that the pump is filled with pumped liquid

during operation. If this is not possible, ensure

appropriate monitoring, for example dry-running

protection to stop the pump in case of malfunction.

Category 3G/D

No additional monitoring, such as dry-running

protection, is required for the pump system.

7.3.2 Flammable liquids, pump unit

Category 2G/D/M2 and 3G/D/M2

Make sure that the pump is filled with pumped liquid

during operation. If this is not possible, ensure

appropriate monitoring, for example dry-running

protection to stop the pump in case of malfunction.

Ensure sufficient ventilation around the pump.

The leakage rate of a shaft seal is 1-10 ml for each

24 hours of operation. For some types of liquids, the

leakage will not be visible due to evaporation. During

the run-in period, larger leakage of 1-20 ml per 24

hours of operation can occur. Liquids like oil or

glycol-water mixtures evaporate slower than water

and will leave residuals. Ensure proper ventilation to

maintain the zone classification.

Category M2

Protect the pump by a guard to prevent damage from

falling or ejected objects.

7.4 Bare-shaft pumps

Bare-shaft pumps with motors of 4 kW and up must

use angular contact bearings.

However, if the pumps are fitted with a thrust

handling device (THD) or a bearing flange, they must

never be used with angular contact bearings. If in

doubt, contact Grundfos.

The thrust handling device (THD) is factory-fitted on

CR, CRN 95-255 for motor sizes of 75 kW and

above.

7.4.1 Bare-shaft pumps with a thrust handling

device

Minimum flow rate

Due to the risk of overheating, do not use the pump

at flows below the minimum flow rate.

The curve below shows the minimum flow rate as a

percentage of the rated flow rate in relation to the

liquid temperature.

Fig. 3 Minimum flow rate in percentage of

nominal flow

Check if the pump is fitted with a thrust

handling device (THD). If the pump is a

THD marked pump, follow the instructions

below.

DANGER

Explosion risk

Death or serious personal injury

- Temperature monitoring of the motor

bearings is required to ensure that the

pump stops in case of overheating.

DANGER

Explosion risk

Death or serious personal injury

- Do not use ATEX motors with angular

contact bearings on pumps fitted with a

thrust handling device (THD).

DANGER

Explosion risk

Death or serious personal injury

- Temperature sensors must be installed

by qualified persons in accordance with

local regulations.

TM02 8290 4903

40 50 60 70 80 90 100 110 120

t [°C]

0

10

20

30

Qmin

[%]

English (GB)

13

8. Operating conditions

See the CR, CRI, CRN installation and operating

instructions:

– http://net.grundfos.com/qr/i/96462123

– http://net.grundfos.com/qr/i/99078486

8.1 Maximum ambient temperature

The maximum ambient temperature for the pump: -

20 to +60 °C.

8.2 Maximum liquid temperature

In normal pump operation, the highest temperatures

are to be expected at the surface of the pump casing

and at the shaft seal. The surface temperature will

normally follow the temperature of the liquid.

You can calculate the permissible liquid temperature

by finding the maximum permissible temperature at

the surface of the pump during operation in the table

shown in section 8.3.1 Temperature class, and

reduce it with the temperature contribution from shaft

seals, see table in section 8.3.2 Shaft seal

temperature.

Section 8.3 Temperature calculation contains a

diagram which shows how the maximum surface

temperature depends on the liquid temperature and

the temperature contribution from the shaft seal.

Calculation example

Based on temperature contribution from a HQQX

shaft seal, media class 1, shaft diameter ∅22 and

pressure 2.5 Mpa.

Temperature class (T4) = 135 °C, see section

8.3.1 Temperature class.

Temperature contribution from HQQX shaft seal = 24

°C, see section 8.3.2 Shaft seal temperature.

Safety margin for Group II = 5 °C according to the

ATEX standard.

Result

Maximum permissible liquid temperature:

T4-contribution from shaft seal-safety margin = 135 -

24 - 5 = 106 °C.

Pumps that are allowed to pump liquids up to a

maximum of 150 °C are equipped with a tandem

shaft seal. In this case, the temperature and flow rate

of the flushing liquid must be according to the

description in the installation and operating

instructions "CR, CRI, CRN-Double seal (tandem)" at

http://net.grundfos.com/qr/i/96477555.

Make sure that the combination of CR pump and dry-

running protection is described in the explosion

protection document according to Directive 1999/92/

EC.

DANGER

Explosion risk

Death or serious personal injury

- Ensure that the required minimum inlet

pressure is always available.

DANGER

Explosion risk

Death or serious personal injury

- Do not operate the pump with higher

liquid temperature than the maximum

liquid temperature (t

max

) stated on the

pump nameplate.

- The calculated maximum permissible

liquid temperature must not be

exceeded.

The responsibility for checking the correct

flow rate and the temperature of the

flushing liquid rests with the installer or

owner.

English (GB)

14

8.3 Temperature calculation

The illustration below shows the maximum surface

temperature of the pump as a result of the maximum

liquid temperature and temperature rise in the shaft

seal.

Fig. 4 Maximum surface temperature

8.3.1 Temperature class

The maximum surface temperature for dust is stated

on the nameplate.

8.3.2 Shaft seal temperature

In order to calculate the pump surface temperature

and temperature class, the below tables show the

temperature rise in the shaft seal for different shaft

diameters, different pressure values and various

media classes.

TM06 4445 2315

Pos. Figure legend

1

Maximum surface temperature of the

pump

2

Temperature rise in the shaft seal.

Calculated by Grundfos. See section

8.3.2 Shaft seal temperature.

3 Maximum liquid temperature

Temperature class

Maximum surface

temperature

[°C]

T1 450

T2 300

T3 200

T4 135

T5 100

T6 85

1

2

3

Shaft seal: HQQx/HUUx/HQUx and

AUUx/AQQx/DQQx

Rpm: 2900/3500

Shaft

diameter

[mm]

Pressure [MPa]

12.54

Shaft seal temperature rise [°C]

12

22 24 26

16

22

28

36

Shaft seal: HQBx/HUBx

Rpm: 2900/3500

Shaft

diameter

[mm]

Pressure [MPa]

12.54

Shaft seal temperature rise [°C]

12

18 20 22

16

22

28

36

English (GB)

15

9. Before starting up and during

operation of an ATEX-approved

pump

9.1 Checklist

Observe this checklist:

1. Check that the ATEX rating of the motor, pump

and accessories corresponds to the specified

category. See section 6. Scope of ATEX

categories for CR pumps. If the motor, pump or

accessory categories differ, the lower rating is

valid.

2. If the pump falls under category M2, check that

the pump is protected by a guard to prevent

damage from falling or ejected objects.

3. Clean the cavities behind the pump's coupling

guard on a regular basis to avoid hazardous dust

deposits.

4. Check that the motor output power corresponds

to the required P

2

of the pump, see nameplates.

5. Check that the pump is as ordered, see

nameplates.

6. Check the axial alignment of the chamber stack.

See the label on the inside of the coupling guard.

Check that the shaft seal components, rubber

parts and seal surfaces are suitable for the

pumped liquid.

7. Check that the shaft can rotate freely. There must

be no mechanical contact between impeller and

chamber.

8. Check that the pump has been filled with liquid

and vented. The pump must never run dry.

9. Check the direction of rotation of the motor, see

the arrow on the top of the fan cover.

10. If you have chosen a pump with double seal,

back-to-back, check that the seal chamber is

pressurised. Always pressurise the chamber

during operation. Always use ATEX-approved

equipment.

11. If you have chosen a pump with double seal,

tandem, check that the seal chamber is

completely filled with liquid. The seal chamber

must always be filled with flushing liquid during

operation. The dry-running protection must be

ATEX-approved.

12. Follow the special startup procedures for these

pump types:

– MAGdrive pumps

– pumps with double seal, back-to-back

– pumps with double seal, tandem.

For further information, see the installation and

operating instructions for the pump in question.

13. Check that the liquid temperature never exceeds

the maximum liquid temperature, t

max

, stated on

the nameplate.

14. Avoid overheating of the pump.

Operation against a closed outlet valve may

cause overheating. Install a bypass with a

pressure relief non-return valve.

15. Check for abnormal noise during operation to

avoid overheating of the pump.

16. Re-vent the pump in either of these situations:

– the pump has been stopped for a period of

time.

– air has accumulated in the pump.

17. If the pump is with bearing bracket, check for

bearing noise every week. Replace the bearing if

it shows signs of wear.

18. The auto-ignition temperature of the pumped

liquid must be 50 K above the maximum surface

temperature of the pump.

19. Make sure to apply the correct inlet pressure.

Use the correct table for the vapour pressure for

the pumped liquid. See section

9.1.1 Specification and calculation of inlet

pressure.

DANGER

Explosion risk

Death or serious personal injury

- Do not run the pump at speeds

exceeding the rated speed. See pump

nameplate.

DANGER

Explosion risk

Death or serious personal injury

- Follow the checklist below.

English (GB)

16

9.1.1 Specification and calculation of inlet

pressure

Fig. 5 Schematic view of open system with a

CR pump

Calculation of inlet pressure

Calculate the maximum suction lift "H" in m head as

follows:

Fig. 6 Vapour pressure for water in m head

If the calculated "H" is positive, the pump can

operate at a suction lift of maximum "H" m head.

If the calculated "H" is negative, an inlet pressure of

minimum "H" m head is required. There must be a

pressure equal to the calculated "H" during

operation.

Example:

Pb = 1 bar.

Pump type: CR 15, 50 Hz.

Flow rate: 15 m

3

/h.

NPSH (see the appendix*): 1.1 m head.

Hf = 3.0 m head.

Liquid temperature: 60 °C.

Hv (see fig. 6): 2.1 m head.

H = Pb x 10.2 - NPSH - Hf - Hv - Hs [m head].

H = 1 x 10.2 - 1.1 - 3.0 - 2.1 - 0.5 = 3.5 m head.

This means that the pump can operate at a suction

lift of maximum 3.5 m head.

Pressure calculated in bar: 3.5 x 0.0981 = 0.343 bar.

Pressure calculated in kPa: 3.5 x 9.81 = 34.3 kPa.

*Link to appendix, see section 9.1.2.

TM02 0118 3800

H = Pb x 10.2 - NPSH - Hf - Hv - Hs

Pb = Barometric pressure in bar.

Barometric pressure can be set to 1 bar.

In closed systems, Pb indicates the

system pressure in bar.

(10 bar = 1 MPa)

NPSH = Net Positive Suction Head in m head, to

be read from the NPSH curve in the

appendix* (at the highest flow rate the

pump will be delivering).

*Link to appendix, see section 9.1.2.

Hf = Friction loss in the inlet pipe in m head

at the highest flow rate the pump will be

delivering.

Hv = Vapour pressure for water in m head.

See fig. 6. If the pumped liquid is not

water, then use the vapour pressure for

the liquid which is being pumped.

tm = Liquid temperature.

Hs = Safety margin = minimum 0.5 m head.

Hv

H

NPSH

Pb

Hf

TM02 7445 3503

20

15

12

10

8,0

6,0

5,0

4,0

3,0

2,0

1,0

0,8

0,6

0,4

0,3

0,2

0,1

1,5

120

110

90

100

80

70

60

50

40

30

20

10

0

Hv

(m)

tm

(°C)

150

130

140

25

35

45

40

30

160

170

180

190

62

79

100

126

English (GB)

17

9.1.2 Appendix with NPSH curves

10. Maintenance and inspection

Service documentation is available in Grundfos

Product Center (http://product-

selection.grundfos.com/).

If you have any questions, please contact the

nearest Grundfos company or service workshop.

10.1 Tightening torques

10.1.1 Coupling

Fig. 7 Coupling screws

10.2 Shaft seal

CR, CRI, CRN 1s, 1, 3, 5, 10, 15, 20, 95, 125, 155,

185, 215, 255

Fig. 8 Shaft seal and shaft seal set screws for

CR, CRI, CRN 1s, 1, 3, 5, 95, 125, 155,

185, 215, 255

CR, CRN 32, 45, 64, 90, 120, 150

Fig. 9 Shaft seal flange screws and shaft seal

set screws for CR, CRN 32, 45, 64, 90,

120, 150

Appendix:

The appendix referred to in section 9.1.1 is

found in the standard CR, CRI, CRN

installation and operating instructions:

http://net.grundfos.com/qr/i/96462123

DANGER

Explosion risk

Death or serious personal injury

- The coupling screws, shaft seal, shaft

seal flange screws and shaft seal set

screws must be tightened according to

the specified torque values.

TM07 2396 3418

Pump size

Coupling screws (4 pcs)

Tightening torque

CR, CRI, CRN

1s, 1, 3

M6-13 Nm

M8-31 Nm

M10-61 Nm

CR, CRI, CRN

10, 15, 20

M6-13 Nm

M8-31 Nm

M10-62 Nm

CR, CRI, CRN

32, 45, 64, 90

M10-85 Nm

CR, CRI, CRN

120, 150

M10-85 Nm

M16-100 Nm

CR, CRN 95,

125, 155, 185,

215, 255

M10-85 Nm

M16-100 Nm

Coupling screw

(4 pcs)

TM07 2395 3418

Pump size

Tightening torque

Shaft seal

Shaft seal set

screws (3 pcs)

CR, CRI, CRN

1s, 1, 3, 5

M28-35 Nm

M5 - 2.5 Nm

CR, CRI, CRN

10, 15, 20

M33-35 Nm

CR, CRN 95,

125, 155, 185,

215, 255

Hex 60-100 Nm

Hex 75-150 Nm

M6-6 Nm

TM07 2397 3418

Pump size

Tightening torque

Shaft seal

flange screws

(4 pcs)

Shaft seal set

screws (3 pcs)

CR, CRI, CRN

32, 45, 64, 90

M10-62 Nm M6-6 Nm

CR, CRI, CRN

120, 150

Shaft seal

Shaft seal set screw

(3 pcs)

Shaft seal set screw (3 pcs)

Shaft seal flange screw (4 pcs)

Български (BG)

18

Български (BG) Упътване за монтаж и експлоатация

Превод на оригиналната английска версия

Тези допълнителни инструкции за монтаж и

експлоатация се отнасят за сертифицираните по

ATEX CR помпи на Grundfos.

Помпите CR отговарят на ATEX Директива 2014/

34/EС.

Помпите са подходящи за употреба в зони,

класифицирани по Директива 1999/92/ЕС. При

съмнение сверете с упоменатите по-горе

директиви или се свържете с Grundfos.

СЪДЪРЖАНИЕ

Стр.

1. Обща информация

1.1 Предупредителни текстове за

опасност

В инструкциите за монтаж и експлоатация,

инструкциите за безопасност и сервизните

инструкции на Grundfos може да се появяват

символите и предупредителните текстове за

опасност по-долу.

Предупредителните текстове за опасност са

структурирани по следния начин:

1. Обща информация

18

1.1 Предупредителни текстове за опасност

18

1.2 Бележки

19

2. Сродни инструкции за монтаж и

експлоатация

19

3. Получаване на продукта

19

4. Документ за взривобезопасност

19

5. Идентификация

20

5.1 Табелка с данни

20

5.2 Обозначение за тип

21

5.3 Лагер на задвижващия край на

двигателя

22

6. Обхват на ATEX категориите за CR

помпи

23

7. Инсталиране на продукта

24

7.1 Помпи с единично уплътнение

24

7.2 Помпа с MAGdrive

24

7.3 Помпа с двойно уплътнение

25

7.4 Помпи с необорудван вал

25

8. Работни условия

26

8.1 Максимална околна температура

26

8.2 Максимална температура на течността

26

8.3 Пресмятане на температурата

27

9. Преди пускането и по време на

работа на сертифицирана по ATEX

помпа

28

9.1 Списък със задачи

28

10. Поддръжка и огледи

30

10.1 Моменти на затягане

30

10.2 Уплътнение на вала

30

Преди инсталиране прочетете този

документ. Монтажът и експлоатацията

трябва да отговарят на местната

нормативна уредба и утвърдените

правила за добра практика.

ОПАСНОСТ

Обозначава опасна ситуация, която

може да доведе до смърт или тежки

наранявания.

ПРЕДУПРЕЖДЕНИЕ

Обозначава опасна ситуация, която

може да доведе до смърт или тежки

наранявания.

ВНИМАНИЕ

Обозначава опасна ситуация, която

може да доведе до смърт или тежки

наранявания.

СИГНАЛИЗИРАЩА ДУМА

Описание на опасността

Последствия от пренебрегването на

предупреждението.

- Действия за предотвратяване на

опасността.

Български (BG)

19

1.2 Бележки

В инструкциите за монтаж и експлоатация,

инструкциите за безопасност и сервизните

инструкции на Grundfos може да се появяват

символите и бележките по-долу.

2. Сродни инструкции за монтаж и

експлоатация

"X" на табелката с данни показва, че

оборудването е предмет на специални условия за

безопасна употреба, както е описано в тези

инструкции. Маркировките на табелката с данни

са описани в таблицата в раздел

5. Идентификация.

В допълнение към тези инструкции, трябва също

да се спазват и следните инструкции за монтаж и

експлоатация:

• CR, CRI, CRN: за стандартни помпи

• CR, CRI, CRN, CRT: демонтаж на

транспортната скоба и монтаж на двигателя.

За помпи без двигател

• MG: стандартни двигатели на Grundfos.

При специални версии на помпите CR

съблюдавайте съответните инструкции за монтаж

и експлоатация:

•CRN MAGdrive

• CR, CRI, CRN: двойно уплътнение, гръб-към-

гръб

• CR, CRI, CRN: двойно уплътнение, тандемно

• MG: стандартни двигатели на Grundfos.

3. Получаване на продукта

Ако помпата е доставена без двигател,

монтирайте двигателя и след това регулирайте

комплекта камери и уплътнението на вала в

съответствие с процедурата, описана в

инструкциите за монтаж и експлоатация -

"Демонтаж на транспортната скоба и монтаж на

двигателя", съпровождащи помпата.

4. Документ за взривобезопасност

Комбинацията от CR помпа и цялото оборудване

за мониторинг трябва да бъдат описани в

документа за взривобезопасност съгласно

Директива 1999/92/ЕС.

Съблюдавайте тези инструкции при

работа с взривобезопасни продукти.

Син или сив кръг с бял графичен символ

обозначава, че за избягване на

опасността трябва да се предприеме

действие.

Червен или сив кръг с диагонална

лента, обикновено с черен графичен

символ, обозначава, че определено

действие трябва да не се предприема

или да бъде преустановено.

Неспазването на тези инструкции може

да доведе до неизправност или повреда

на оборудването.

Съвети и препоръки, които улесняват

работата.

Български (BG)

20

5. Идентификация

5.1 Табелка с данни

Табелката с данни върху силовата глава на

помпата дава следната информация:

• данни за стандартна помпа

• данни за ATEX маркировката

– номер на техническото досие

– сериен номер

– Ex категория.

Фиг. 1 Пример за табелка на CR помпа,

сертифицирана по ATEX

Данните за АТЕХ маркировката се отнасят само

за частта, включително куплунга. Двигателят има

отделна табелка с данни.

TM07 5039 0719

DK-8850 Bjerringbro,Denmark

Model-PN-SN

Type

Hz

pmax/tmax

Tech file no

Made in Denmark

P code: P115482

bar/°C

min

-1

excl.motor 500kg

/hm

3

kW [P2]

H/H max m 0(,

ȘS 

B-96123526-98438832

CR255-1-1A-F-A-E-HQQE

435/248

2917

64

CCW

98964685X

99356347

50/60

4.0

0.7 69.7

14.2/22.1

21

435-580/176

II 3G Ex h IIC T4...T3 Gb

АТЕХ класификация

Поз. Описание

1

II

Група

I: Подземно в мини

II: Повърхностно

оборудване

3G

Категория

M2: Минно дело

2G, 3G: Газ/изпарения

2D, 3D: Прах

Ex h Тип защита

IIC

Група околна среда

IIC: Газ/изпарения

IIIC: Запалим прах

IIIB: Немагнитен прах

T4...T3

Максимална повърхностна

температура според 80079-

36.

Диапазон на температурата

или специфична

температура.

T4...T3: Газ

T125 °C: Прах

Gb

EPL (Equipment Protection

Level).

Gb, Gc: Газ

Db, Dc: Прах

2

98964685

Номер на файла за

техническото досие,

съхранявано в DEKRA.

X

Указва, че за оборудването

важат специални условия

за безопасна употреба.

Условията са упоменати в

този документ.

Stránka sa načítava...

Grundfos CRN Series Installation And Operating Instructions Manual

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Grundfos CRN Series Installation And Operating Instructions Manual

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