Grundfos CR, 3, CRI, 5, 10 Installation And Operating Instructions Manual

...
GRUNDFOS INSTRUCTIONS
CR, CRI, CRN 1s, 1, 3, 5, 10, 15, 20 CR, CRN 32, 45, 64, 90, 120, 150
Double seal (back-to-back)
Installation and operating instructions
English (GB) Installation and operating instructions
Caution
Note
Caution
English (GB)
CONTENTS
1. Symbols used in thi s do cumen t
2. General informati on
3. Product description
4. Applications
5. Maximum liquid pressure and temperature
6. Barrier fluid connections
7. Pump with pressure intensifier
7.1 Components of pressure intensifier
7.2 Dimensions of pump with pressure intensifier
8. Pump with dosing pump
8.1 Dimensions of pump with dosing pump
9. Startup
9.1 Pump with pressure intensifier
9.2 Pump with dosing pump
10. Maintenance
11. Operation
11.1 Frost protection
12. Disposal
Warning Prior to installation, read these installation and
operating instructions. Installation and operation must comply with local regulations and accepted codes of good practice.

1. Symbols used in this document

Warning If these safety instructions are not observed,
it may result in personal injury.
If these safety instructions are not observed, it may result in malfunction or damage to the equipment.
Notes or instructions that make the job easier and ensure safe operation.
Page

2. General information

These installation and operating instructions are a supplement to installation and operating instructions for standard CR, CRI, CRN pumps, publication No 96462123, and for CRN-SF pumps, publication No 96530119.
2 2

3. Product description

2
This type of double seal consists of two shaft seals mounted in a
2
"back-to-back" arrangement in a separate seal chamber.
2
The pressure in the seal chamber is higher than the pump
3
pressure.
4
The double seal arrangement with pressurised seal chamber
4
prevents the pumped liquid from leaking to the environment via
4
the shaft seal. The pressure in the seal chamber can be generated in three
4
ways:
4
• by means of a pressure intensifier (section 9.1)
5
5
• by means of a dosing pump (section 9.2)
6
• by means of an already existing system.
7 7

4. Applications

7
The shaft seal is available for the following Grundfos pumps:
7
Pump
CR 1sCR 1CR 3CR 5CR 10CR 15CR 20CR 32CR 45CR 64CR 90CR
type
CR  CRI  CRN 
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.
If the shaft seal is used in applications where special safety precautions must be observed due to hazardous liquids, the customer bears full responsibility!

5. Maximum liquid pressure and temperature

Due to the shaft seal design, the pressure in the seal chamber must not exceed 25 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.
120CR150
Shaft seal Maximum temperature [°C]
EPDM +120
FKM +90
FFKM +120
FXM +120
2

6. Barrier fluid connections

Sensor
Inlet 1/2"
Outlet 3/8"
C/D
A
E
A
C/D
E
Sensor
Inlet 1/2"
Outlet 3/8"
C/D
A
E
A
C/D
E
Inlet 1/2"
Sensor
A
A
C/D
E
E
Outlet 3/8"
C/D
Key to the letters in the drawings: Pos. A = pumped liquid. Pos. C/D and E = barrier fluid. Figures 1, 2 and 3 show where to fit a sensor (pos. A),
if retrofitted.
English (GB)
Fig. 1 Seal chamber CR, CRI, CRN 1s, 1, 3, 5
Fig. 2 Seal chamber CR, CRI, CRN 10, 15, 20
TM04 3225 3908TM04 3226 3908
Fig. 3 Seal chamber CR, CRN 32, 45, 64, 90, 120, 150
TM04 4080 0909
3

7. Pump with pressure intensifier

Pressure
gauge
Pressure
intensifier
Seal chamber
CR, CRI, CRN pump
5
4
3 2 1
7
6
9
8
a
b
c
Dosing pump
Barrier fluid
English (GB)
Fig. 4 Pump with pressure intensifier

7.1 Components of pressure intensifier

7.2 Dimensions of pump with pressure intensifier

TM01 4455 0399TM03 8299 1007
TM01 4459 0399
Fig. 6 Pump with pressure intensifier
Pump type
CR, CRI, CRN 1s, 1, 3, 5 297 108 128 CR, CRI, CRN 10, 15, 20 234 90 140 CR, CRN 32 342 185 155 CR, CRN 45 349 215 164 CR, CRN 64 349 141 164 CR, CRN 90 355 159 170 CR, CRN 120, 150 355 111 170
The dimension b is the additional height compared to the standard pump.
a
[mm]
b
[mm]
c
[mm]

8. Pump with dosing pump

Fig. 5 Components of pressure intensifier
Pos. Designation
1 Pressure intensifier 2Piston 3 Diaphragm 4 Non-return valve 5 Relief valve 6 Vent screw, Rp 1/8 7 Spring for piston 8 Pressure gauge (barrier fluid) 9 Pressure gauge (pumped liquid)
4
Fig. 7 Pump with dosing pump
TM01 9099 1701

8.1 Dimensions of pump with dosing pum p

Pump type
CR, CRI, CRN 1s, 1, 3, 5 108 CR, CRI, CRN 10, 15, 20 90 CR, CRN 32 185 CR, CRN 45 215 CR, CRN 64 141 CR, CRN 90 159 CR, CRN 120, 150 111
Additional height of seal chamber
[mm]

9. Startup

1,5 - 4 bar

9.1 Pump with pressure intensifier

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
English (GB)
Operation with positive inlet pressure
• Open the vent screw (pos. A, fig. 1, 2 or 3) 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.
1
Operation with suction lift
• Open the vent screw (pos. A, fig. 1, 2 or 3) 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.
TM02 2607 4601
TM02 2608 4601
Note: A non-return valve must be fitted to the inlet pipe. Filling the seal chamber
• Fill the intensifier and the seal chamber with barrier fluid, and
connect the barrier fluid supply pipe to the unused inlet of the intensifier (pos. 4, fig. 5). The pressure in the seal chamber must always be 1.5 to 4 bar higher than the pump pressure when the pump is not operating.
2
p
= ps* + 1.5 to 4 bar.
f
p
= To be read on the pressure gauge on the intensifier (pos. 8, fig. 5).
f
p
= To be read on the pressure gauge in the connection pipe
s
(pos. 9, fig. 5) between intensifier and pump.
* p
= inlet pressure when the pump is not operating; must always be
s
0.1 to 5 bar higher than the atmospheric pressure.
Venting
During filling, the seal chamber and the intensifier must be vented:
• Use the vent screw at the top of the seal chamber (pos. C/D, fig. 1, 2
or 3) and the vent screw at the top of the intensifier (pos. 6, fig. 5).
3
TM02 2609 4601
TM02 2610 4601
TM02 2611 4610
Disconnecting the barrier fluid supply pipe
• Disconnect the barrier fluid supply pipe from the intensifier.
4
Starting up the pump
• See also the installation and operating instructions for standard CR,
CRI, CRN pumps.
• Start the pump, and check the direction of rotation.
See the correct direction of rotation on the motor fan cover.
5
• After a few minutes, vent the pump again by means of the vent screw
(pos. A, fig. 1, 2 or 3).
5

9.2 Pump with dosing pump

PS
PS
1,5 - 2 bar
PS
PS
PS
English (GB)
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
Connecting the barrier fluid supply pipe
• Connect one end to the seal chamber (pos. E, fig. 1, 2 or 3).
• Connect the other end to the outlet of the dosing pump.
1
TM02 2612 4601
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. (P
2
TM02 2613 4601
pump
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, 2 or 3).
3
The dosing pump will stop automatically when the pressure set in step 2 has been reached.
+ P
inlet
+ P
1.5 - 2.0
< P
dosing max.
)
TM02 2614 4601
Operation with positive inlet pressure
• Open the vent screw (pos. A, fig. 1, 2 or 3) 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.
4
Operation with suction lift
• Open the vent screw (pos. A, fig. 1, 2 or 3) 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.
TM02 2615 4601
Note: A non-return valve must be fitted to the inlet pipe.
Starting up the pump
• See also the installation and operating instructions for standard CR, CRI, CRN pumps.
• Open the isolating valve on the discharge side.
• Start the pump, and check the direction of rotation.
5
See the correct direction of rotation on the motor fan cover.
• After a few minutes, vent the pump again by means of the air vent screw (pos. A, fig. 1, 2 or 3).
TM02 2616 4601
6

10. Maintenance

Note
See the installation and operating instructions for standard CR, CRI, CRN pumps.
Pressure intensifier
The pressure intensifier is maintenance-free.
Dosing pump
See the installation and operating instructions for the dosing pump.

11. Operation

To ensure optimum function and performance, check the pressure regularly.
Pressure intensifier
The pressure difference between the two pressure gauges (seal chamber and pump) must be between 1 and 1.5 bar. This indicates that the seal chamber contains sufficient barrier fluid.
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.
A very small quantity of the barrier fluid, i.e. less than 10 ml/24 operating hours, will always flow into the pumped liquid.
English (GB)

11.1 Frost protection

For general guidelines on frost protection of the pump, see the installation and operating instructions for standard CR, CRI, CRN pumps.
Seal chamber
Drain the seal chamber by slackening the lower plug (pos. E, fig. 1, 2 or 3).
Pressure intensifier
Replace the barrier fluid by antifreeze liquid.
Dosing pump
For frost protection, see the installation and operating instructions for the dosing pump.
Warnin g If the pumped liquid is hazardous to health, take
special care when draining the pump. Local safety regulations must be observed.

12. 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.
Subject to alterations.
7
8
Argentina
Bombas GRUNDFOS de Argentina S.A. Ruta Panamericana km. 37.500 Centro Industrial Garin 1619 Garín Pcia. de B.A. Phone: +54-3327 414 444 Telefax: +54-3327 45 3190
Australia
GRUNDFOS Pumps Pty. Ltd. P.O. Box 2040 Regency Park South Australia 5942 Phone: +61-8-8461-4611 Telefax: +61-8-8340 0155
Austria
GRUNDFOS Pumpen Vertrieb Ges.m.b.H. Grundfosstraße 2 A-5082 Grödig/Salzburg Tel.: +43-6246-883-0 Telefax: +43-6246-883-30
Belgium
N.V. GRUNDFOS Bellux S.A. Boomsesteenweg 81-83 B-2630 Aartselaar Tél.: +32-3-870 7300 Télécopie: +32-3-870 7301
Belarus
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Bulgaria
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Canada
GRUNDFOS Canada Inc. 2941 Brighton Road Oakville, Ontario L6H 6C9 Phone: +1-905 829 9533 Telefax: +1-905 829 9512
China
GRUNDFOS Pumps (Shanghai) Co. Ltd. 50/F Maxdo Center No. 8 XingYi Rd. Hongqiao development Zone Shanghai 200336 PRC Phone: +86 21 612 252 22 Telefax: +86 21 612 253 33
Croatia
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Czech Republic
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Denmark
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Estonia
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Finland
OY GRUNDFOS Pumput AB Mestarintie 11 FIN-01730 Vantaa Phone: +358-(0)207 889 900 Telefax: +358-(0)207 889 550
France
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Germany
GRUNDFOS GMBH Schlüterstr. 33 40699 Erkrath Tel.: +49-(0) 211 929 69-0 Telefax: +49-(0) 211 929 69-3799 e-mail: infoservice@grundfos.de Service in Deutschland: e-mail: kundendienst@grundfos.de
HILGE GmbH & Co. KG Hilgestrasse 37-47 55292 Bodenheim/Rhein Germany Tel.: +49 6135 75-0 Telefax: +49 6135 1737 e-mail: hilge@hilge.de
Greece
GRUNDFOS Hellas A.E.B.E. 20th km. Athinon-Markopoulou Av. P.O. B o x 7 1 GR-19002 Peania Phone: +0030-210-66 83 400 Telefax: +0030-210-66 46 273
Hong Kong
GRUNDFOS Pumps (Hong Kong) Ltd. Unit 1, Ground floor Siu Wai Industrial Centre 29-33 Wing Hong Street & 68 King Lam Street, Cheung Sha Wan Kowloon Phone: +852-27861706 / 27861741 Telefax: +852-27858664
Hungary
GRUNDFOS Hungária Kft. Park u. 8 H-2045 Törökbálint, Phone: +36-23 511 110 Telefax: +36-23 511 111
India
GRUNDFOS Pumps India Private Limited 118 Old Mahabalipuram Road Thoraipakkam Chennai 600 096 Phone: +91-44 2496 6800
Indonesia
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Ireland
GRUNDFOS (Ireland) Ltd. Unit A, Merrywell Business Park Ballymount Road Lower Dublin 12 Phone: +353-1-4089 800 Telefax: +353-1-4089 830
Italy
GRUNDFOS Pompe Italia S.r.l. Via Gran Sasso 4 I-20060 Truccazzano (Milano) Tel.: +39-02-95838112 Telefax: +39-02-95309290 / 95838461
Japan
GRUNDFOS Pumps K.K. Gotanda Metalion Bldg., 5F, 5-21-15, Higashi-gotanda Shiagawa-ku, Tokyo 141-0022 Japan Phone: +81 35 448 1391 Telefax: +81 35 448 9619
Korea
GRUNDFOS Pumps Korea Ltd. 6th Floor, Aju Building 679-5 Yeoksam-dong, Kangnam-ku, 135-916 Seoul, Korea Phone: +82-2-5317 600 Telefax: +82-2-5633 725
Latvia
SIA GRUNDFOS Pumps Latvia Deglava biznesa centrs Augusta Deglava ielā 60, LV-1035, Rīga, Tālr.: + 371 714 9640, 7 149 641 Fakss: + 371 914 9646
Lithuania
GRUNDFOS Pumps UAB Smolensko g. 6 LT-03201 Vilnius Tel: + 370 52 395 430 Fax: + 370 52 395 431
Malaysia
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Mexico
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Netherlands
GRUNDFOS Netherlands Velu we zo om 35 1326 AE Almere Postbus 22015 1302 CA ALMERE Tel.: +31-88-478 6336 Telefax: +31-88-478 6332 E-mail: info_gnl@grundfos.com
New Zealand
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Norway
GRUNDFOS Pumper A/S Strømsveien 344 Postboks 235, Leirdal N-1011 Oslo Tlf.: +47-22 90 47 00 Telefax: +47-22 32 21 50
Poland
GRUNDFOS Pompy Sp. z o.o. ul. Klonowa 23 Baranowo k. Poznania PL-62-081 Przeźmierowo Tel: (+48-61) 650 13 00 Fax: (+48-61) 650 13 50
Portugal
Bombas GRUNDFOS Portugal, S.A. Rua Calvet de Magalhães, 241 Apartado 1079 P-2770-153 Paço de Arcos Tel.: +351-21-440 76 00 Telefax: +351-21-440 76 90
Romania
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Russia
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Serbia
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Singapore
GRUNDFOS (Singapore) Pte. Ltd. 25 Jalan Tukang Singapore 619264 Phone: +65-6681 9688 Telefax: +65-6681 9689
Slovakia
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Slovenia
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South Africa
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Spain
Bombas GRUNDFOS España S.A. Camino de la Fuentecilla, s/n E-28110 Algete (Madrid) Tel.: +34-91-848 8800 Telefax: +34-91-628 0465
Sweden
GRUNDFOS AB Box 333 (Lunnagårdsgatan 6) 431 24 Mölndal Tel.: +46 31 332 23 000 Telefax: +46 31 331 94 60
Switzerland
GRUNDFOS Pumpen AG Bruggacherstrasse 10 CH-8117 Fällanden/ZH Tel.: +41-44-806 8111 Telefax: +41-44-806 8115
Taiwan
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Thailand
GRUNDFOS (Thailand) Ltd. 92 Chaloem Phrakiat Rama 9 Road, Dokmai, Pravej, Bangkok 10250 Phone: +66-2-725 8999 Telefax: +66-2-725 8998
Turkey
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2. yol 200. Sokak No. 204 41490 Gebze/ Kocaeli Phone: +90 - 262-679 7979 Telefax: +90 - 262-679 7905 E-mail: satis@grundfos.com
Ukraine
Бізнес Центр Європа Столичне шосе, 103 м. Київ, 03131, Україна Телефон : (+38 044) 237 04 00 Факс.: (+38 044) 237 04 01
E-mail: ukraine@grundfos.com
United Arab Emirates
GRUNDFOS Gulf Distribution P.O. Box 16768 Jebel Ali Free Zone Dubai Phone: +971 4 8815 166 Telefax: +971 4 8815 136
United Kingdom
GRUNDFOS Pumps Ltd. Grovebury Road Leighton Buzzard/Beds. LU7 4TL Phone: +44-1525-850000 Telefax: +44-1525-850011
U.S.A.
GRUNDFOS Pumps Corporation 17100 West 118th Terrace Olathe, Kansas 66061 Phone: +1-913-227-3400 Telefax: +1-913-227-3500
Uzbekistan
Grundfos Tashkent, Uzbekistan The Repre­sentative Office of Grundfos Kazakhstan in Uzbekistan 38a, Oybek street, Tashkent Телефон: (+998) 71 150 3290 / 71 150 3291 Факс: (+998) 71 150 3292
Addresses Revised 21.05.2014
Grundfos companies
96477556 0114
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