Grundfos CR 95 User manual

CR, CRN 95-155
Double shaft seal (back-to-back)
Installation and operating instructions
GRUNDFOS INSTRUCTIONS

2

Table of contents
3
CR, CRN 95-155
English (GB)
Installation and operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Български (BG)
Упътване за монтаж иексплоатация . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Čeština (CZ)
Montážní a provozní návod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Deutsch (DE)
Montage- und Betriebsanleitung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Dansk (DK)
Monterings- og driftsinstruktion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Eesti (EE)
Paigaldus- ja kasutusjuhend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Español (ES)
Instrucciones de instalación y funcionamiento. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Suomi (FI)
Asennus- ja käyttöohjeet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Français (FR)
Notice d'installation et de fonctionnement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Ελληνικά (GR)
Οδηγίες εγκατάστασης και λειτουργίας . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Hrvatski (HR)
Montažne i pogonske upute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Magyar (HU)
Telepítési és üzemeltetési utasítás . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Italiano (IT)
Istruzioni di installazione e funzionamento. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Lietuviškai (LT)
Įrengimo ir naudojimo instrukcija . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Latviešu (LV)
Uzstādīšanas un ekspluatācijas instrukcija . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Nederlands (NL)
Installatie- en bedieningsinstructies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Polski (PL)
Instrukcja montażu i eksploatacji . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Português (PT)
Instruções de instalação e funcionamento. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Română(RO)
Instrucţiuni de instalare şi utilizare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Srpski (RS)
Uputstvo za instalaciju i rad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Русский (RU)
Руководство по монтажу иэксплуатации. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Svenska (SE)
Monterings- och driftsinstruktion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Slovensko (SI)
Navodila za montažo in obratovanje . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Slovenčina (SK)
Návod na montáž a prevádzku . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Table of contents
4
CR, CRN 95-155
Türkçe (TR)
Montaj ve kullanım kılavuzu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
中文 (CN)
安装和使用说明书 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
日本語 (JP)
取扱説明書 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
한국어 (KO)
설치 및 작동 지침 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117

English (GB)
5
English (GB) Installation and operating instructions
Original installation and operating instructions
CONTENTS
Page
1. Symbols used in this document
2. General information
These installation and operating instructions are a supplement to
installation and operating instructions for standard CR, CRN
pumps, publication No 99078486.
3. Product description
This type of double seal consists of two shaft seals mounted in a
"back-to-back" arrangement in a separate seal chamber.
The pressure in the seal chamber is higher than the pump
pressure.
The double seal arrangement with pressurised seal chamber
prevents the pumped liquid from leaking to the environment via
the shaft seal.
The pressure in the seal chamber can be generated in three
ways:
• by means of a dosing pump (section 8.1)
• by means of an already existing system.
4. Applications
The shaft seal is available for the following Grundfos pumps:
This type of shaft seal is the optimum solution when handling
abrasive or sticky liquids which would either wear out, damage or
block a mechanical shaft seal.
Recommended for applications involving toxic, aggressive or
flammable liquids, the seal shaft protects the surrounding
environment and the people working in the vicinity of the pump.
5. Maximum liquid pressure and temperature
Due to the shaft seal design, the pressure in the seal chamber
must not exceed 30 bar. The pressure of the barrier fluid must
always be higher than the pressure of the pumped liquid.
The maximum temperature of the barrier fluid depends on the
rubber material of the shaft seal.
1. Symbols used in this document 5
2. General information 5
3. Product description 5
4. Applications 5
5. Maximum liquid pressure and temperature 5
6. Barrier fluid connections 6
7. Pump with dosing pump 6
7.1 Dimensions of pump with dosing pump 6
8. Startup 7
8.1 Pump with dosing pump 7
9. Maintenance 8
10. Operation 8
10.1 Frost protection 8
11. Disposal 8
Warning
Prior to installation, read these installation and
operating instructions. Installation and operation
must comply with local regulations and accepted
codes of good practice.
Warning
If these safety instructions are not observed, it may
result in personal injury.
Caution
If these safety instructions are not observed, it may
result in malfunction or damage to the equipment.
Note
Notes or instructions that make the job easier and
ensure safe operation.
Pump type CR 95 CR 125 CR 155
CR ●●●
CRN ●●●
Caution
If the shaft seal is used in applications where special
safety precautions must be observed due to
hazardous liquids, the customer bears full
responsibility!
Shaft seal Maximum temperature [°C]
EPDM +120
FKM +90
FFKM +120
FXM +120

English (GB)
6
6. Barrier fluid connections
Key to the letters in the drawings:
Pos. A = pumped liquid.
Pos. C/D and E = barrier fluid.
Fig. 1 Seal chamber CR, CRN 95, 125, 155
7. Pump with dosing pump
Fig. 2 Pump with dosing pump
7.1 Dimensions of pump with dosing pump
TM07 3366 4918
Sensor
A
A
C/D
EE
Outlet 1/2"
C/D
Inlet 1/2"
TM01 9099 1701
Pump type Additional height of seal chamber
[mm]
CR, CRN 95 209
CR, CRN 125, 155 244
Dosing pump
Barrier fluid

English (GB)
7
8. Startup
8.1 Pump with dosing pump
Warning
Pay attention to the orientation of the vent holes,
and take care to ensure that the escaping liquid
does not cause personal injury or damage to the
motor or other components.
When handling hot or hazardous liquids, special
attention should be paid to the risk of personal
injury.
When pumping flammable liquids, beware of static
discharges. The funnel, for instance, should be
earthed!
Illustration Step Action
TM02 2612 4601
1
Connecting the barrier fluid supply pipe
• Connect one end to the seal chamber (pos. E, fig. 1).
• Connect the other end to the outlet of the dosing pump.
TM02 2613 4601
2
Recommended pressure
• Set the start pressure of the dosing pump to a pressure 1.5 to 2 bar
above the highest pressure the pump can deliver.
(Ppump + Pinlet + P1.5 - 2.0 < Pdosing max.)
TM02 2614 4601
3
Filling and venting the seal chamber
• Start the dosing pump.
• Fill and vent the seal chamber by means of the vent screw at the top
of the seal chamber (pos. C/D, fig. 1).
The dosing pump will stop automatically when the pressure set in
step 2 has been reached.
TM02 2615 4601
4
Operation with positive inlet pressure
• Open the vent screw (pos. A, fig. 1) on the side of the pump head.
• Close the isolating valve on the discharge side.
• Open the isolating valve on the inlet side.
• Slowly fill the pump with the liquid to be pumped.
When the liquid starts running out of the vent hole, immediately close
the vent screw.
Operation with suction lift
• Open the vent screw (pos. A, fig. 1) on the side of the pump head.
• Close the isolating valve on the discharge side.
• Fill the pump and the inlet pipe with the liquid to be pumped using a
funnel.
• When the liquid starts running out of the vent hole, immediately close
the vent screw.
Note: A non-return valve must be fitted to the inlet pipe.
TM02 2616 4601
5
Starting up the pump
• See also the installation and operating instructions for standard CR,
CRN pumps.
• Open the isolating valve on the discharge side.
• Start the pump, and check the direction of rotation.
See the correct direction of rotation on the motor fan cover.
• After a few minutes, vent the pump again by means of the vent screw
(pos. A, fig. 1).
PS
PS
1,5 - 2 bar
PS
PS
PS

English (GB)
8
9. Maintenance
See the installation and operating instructions for standard CR,
CRN pumps.
Dosing pump
See the installation and operating instructions for the dosing
pump.
10. Operation
To ensure optimum function and performance, check the pressure
regularly.
Dosing pump
The pressure of the barrier fluid must always be 1.5 to 2 bar
higher than the pressure of the pumped liquid. This is
automatically checked by the pressure switch/ transmitter fitted
together with the dosing pump.
10.1 Frost protection
For general guidelines on frost protection of the pump, see the
installation and operating instructions for standard CR, CRN
pumps.
Seal chamber
Drain the seal chamber by slackening the lower plug (pos. E, fig.
1).
Dosing pump
For frost protection, see the installation and operating instructions
for the dosing pump.
11. Disposal
This product or parts of it must be disposed of in an
environmentally sound way:
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest Grundfos company
or service workshop.
Note
A very small quantity of the barrier fluid, i.e. less than
10 ml/24 operating hours, will always flow into the
pumped liquid.
Warning
If the pumped liquid is hazardous to health, take
special care when draining the pump. Local safety
regulations must be observed.

Български (BG)
9
Български (BG) Упътване за монтаж иексплоатация
Превод на оригиналната английска версия
СЪДЪРЖАНИЕ
Стр.
1. Символи втози документ
2. Обща информация
Настоящите инструкции за монтаж иексплоатация са
допълнение към инструкциите за монтаж иексплоатация
за стандартни помпи тип CR, CRN, публикация No 99078486.
3. Описание на продукта
Този тип двойно уплътнение се състои от две уплътнения на
вала, разположени в"back-to-back" позиция вотделна
уплътнителна камера. Налягането вуплътнителната камера е
по-голямо от налягането на помпата.
Наличието на двойно уплътнение схерметизирана
уплътнителна камера не позволява изтичане на работна
течност към околната среда през уплътнението на вала.
Нялагането вуплътнителната камера може да се генерира по
три начина:
•спомощта на дозираща помпа (раздел 8.1)
•спомощта на вече налична система.
4. Приложения
Уплътнението на вала еналично за следните помпни на
Grundfos:
Използването на този вид уплътнение енай-доброто решение
при работа сабразивни или лепкави течности, които водят до
износване, повреда или блокиране на едно механично
уплътнение на вала.
Препоръчано за приложения, включващи токсични, агресивни
или възпламеними течности, уплътнението на вала
предпазва средата илицата, работещи вблизост до помпата.
5. Максимално налягане итемпература на
течността
Поради дизайна на уплътнението на вала, налягането в
уплътнителната камера не трябва да надвишава 30 бара.
Налягането на бариерния флуид трябва винаги да епо-
високо от това на работната течност.
Максималната температура на бариерния флуид зависи от
гумения материал на уплътнението на вала.
1. Символи втози документ 9
2. Обща информация 9
3. Описание на продукта 9
4. Приложения 9
5. Максимално налягане итемпература на
течността 9
6. Връзки на бариерен флуид 10
7. Помпа сдозираща помпа 10
7.1 Размери на помпата сдозираща помпа 10
8. Пуск 11
8.1 Помпа сдозираща помпа 11
9. Поддръжка 13
10. Работа 13
10.1 Защита от замръзване 13
11. Отстраняване на отпадъци 13
Предупреждение
Преди монтажа, прочетете тези инструкции за
експлоатация иработа. Монтажът
и експлоатацията трябва да съответстват на
местните правила инаредби и инженерната
практика.
Предупреждение
Ако тези инструкции за безопасност не се спазват,
това може да доведе до наранявания.
Внимание
Неспазването на тези инструкции за безопасност
може да доведе до неизправност или повреда на
оборудването.
Указание
Бележки иинструкции, които улесняват работата
иосигуряват безопасна работа.
Тип помпа CR 95 CR 125 CR 155
CR ●●●
CRN ●●●
Внимание
Ако уплътнението на вала се използва в
приложения, при които енеобходимо да се вземат
специални предпазни мерки за безопасност
поради наличие на опасни течности, цялата
отговорност се поема от клиента!
Уплътнение на вала Максимална температура [°C]
EPDM +120
FKM +90
FFKM +120
FXM +120

Български (BG)
10
6. Връзки на бариерен флуид
Легенда на символите, използвани вилюстрациите:
Поз. A = работна течност.
Поз. C/D иE = бариерен флуид.
Фиг. 1 Уплътнителна камера CR, CRN 95, 125, 155
7. Помпа сдозираща помпа
Фиг. 2 Помпа сдозираща помпа
7.1 Размери на помпата сдозираща помпа
TM07 3366 4918
Сензор
A
A
C/D
EE
Изход 1/2"
C/D
Вход 1/2"
TM01 9099 1701
Тип помпа
Допълнителна височина на
уплътнителната камера
[mm]
CR, CRN 95, 125, 155 108
CR, CRN 10, 15, 20 90
Дозираща помпа
Бариерен флуид