Grundfos CH Series, CHN Series, CH 2, CHN 2, CH 4 Installation And Operating Instructions Manual

GRUNDFOS INSTRUCTIONS

CH, CHN

Installation and operating instructions

CH, CHN

Installation and operating instructions 6
Montage- und Betriebsanleitung 10
Notice d’installation et d’entretien 15
Istruzioni di installazione e funzionamento 19
Instrucciones de instalación y funcionamiento 23
Instruções de instalação e funcionamento 27
Οδηγίες εγκατάστασης και λειτουργίας 31
Installatie- en bedieningsinstructies 35
Monterings- och driftsinstruktion 39
Asennus- ja käyttöohjeet 43
Monterings- og driftsinstruktion 47
Instrukcja montażu i eksploatacji 51
Руководство по монтажу и эксплуатации 57
Szerelési és üzemeltetési utasítás 63
Navodilo za montažo in obratovanje 68
Montažne i pogonske upute 73
Uputstvo za montažu i upotrebu 78
Instrucţiuni de instalare şi utilizare 83
Упътване за монтаж и експлоатация 87
Montážní a provozní návod 92
Návod na montáž a prevádzku 97

FIN

5

CONTENTS

Page

1. General description 6

1.1 Applications 6

1.2 Operating conditions 6

1.3 Technical data 6

1.4 Sound pressure level 6

2. Installation 7

2.1 Pump location 7

2.2 Position of terminal box 7

2.3 Pipework 7

2.4 Installation examples 7

3. Electrical connections 8

3.1 Checking of direction of rotation 8

4. Starting 8

4.1 Priming 8

4.2 Frequency of starts and stops 8

5. Operation and maintenance 8

5.1 Frost protection 8

6. Fault finding chart 9

7. Disposal 9

Before beginning installation procedures,
these installation and operating instruc­tions should be studied carefully. The in­stallation and operation should also be in
accordance with local regulations and ac­cepted codes of good practice.

1. General description

1.1 Applications

The CH/CHN range of Grundfos horizontal multi­stage centrifugal pumps are designed for the pump­ing of water and other thin, non-aggressive and non­explosive liquids, not containing solid particles or fi­bres.

1.2 Operating conditions

1.2.1 Liquid temperature

0°C to +90°C.

1.2.2 Ambient temperature

Up to +55°C.

1.2.3 Maximum operating pressure

0°C to +40°C: Up to 10 bar.
+41°C to +90°C: Up to 6 bar.

1.2.4 Maximum inlet pressure

The actual inlet pressure plus the pressure when the
pump is operating against a closed valve should al­ways be lower than the “maximum operating pres­sure”.

1.2.5 Minimum inlet pressure

The table below applies to the maximum flow rates
of the pumps and a barometric pressure of
760 mmHg.

The values stated are the minimum inlet pressures/
maximum suction lifts “H” [m head] at the pump suc­tion port. The values are stated at different liquid
temperatures. The head loss in the suction pipe

should therefore be taken into account.

The maximum suction lift may be limited by the ac­tual head.

Type H [m head]
50 Hz 20°C 40°C 55°C 90°C

CH 2 *4.1 *3.6 *2.7 2.8
CHN 2 *4.1 *3.6 *2.7 2.8
CH 4 *7.5 *7.0 *6.1 *0.6
CHN 4 *7.5 *7.0 *6.1 *0.6
CH 8 *6.3 *5.8 *4.9 0.6
CH 12 *5.6 *5.1 *4.2 1.3

60 Hz

CH 2 *3.1 *2.6 *1.7 3.8
CHN 2 *3.1 *2.6 *1.7 3.8
CH 4 *6.8 *6.3 *5.4 0.1
CHN 4 *6.8 *6.3 *5.4 0.1
CH 8 *6.9 *6.4 *5.5 0.0
CH 12 *3.5 *3.0 *2.1 3.4

“H” = minimum inlet pressure during operation.
“H” marked * = maximum suction lift during opera-

tion.
1 m head ≈ 0.1 bar.

1.3 Technical data

1.3.1 Electrical data

See the pump nameplate.

1.3.2 Dimensions

See page 103.

1.4 Sound pressure level

The sound pressure level of the pump is lower than
the limiting values stated in the EC Council Directive
98/37/EC relating to machinery.

6

2. Installation

2.1 Pump location

The pump should be installed so that the suction
pipe is as short and the suction lift as small as possi­ble.

The pump should be sited in a well ventilated but
frost-free position, see section 5.1 Frost protection.
It may be sited outside, but it should be protected
from the elements by means of a suitable cover.

The pump may be installed in one of the positions
shown in fig. 1.

Fig. 1

2.2 Position of terminal box

The terminal box can be turned to any one of the po­sitions shown in fig. 2 before the pump is installed.

Fig. 2

To change the position of the terminal box:

1. Remove the four screws which, from the motor
side, are screwed into the discharge chamber.

2. Turn the stator housing to the required position.

3. Replace the screws and tighten securely.

2.3 Pipework

The pipes should be fitted so that any tension
caused by variations in temperature does not affect
the pump.

2.3.1 Suction pipe

If the pump is to draw liquid from a level lower than
the pump suction port, a foot/non-return valve must
be fitted to the end of the suction pipe, below the
lowest liquid level, since the pump is not self-prim­ing.

The suction pipe is connected to the pump suction
port S, fig. 3.

Fig. 3

T

S

When the suction pipe is longer than 10 metres or
the suction lift is greater than 4 metres, the diameter
of the suction pipe must be larger than that of the
pump suction port.

Every joint of the suction pipe must be completely
tight.

If a hose is used as suction pipe, it must be non-col­lapsible. A strainer is recommended in cases where
solids could enter the suction pipe and block the

TM00 0689 4896 TM00 0690 5192

pump.

2.3.2 Discharge pipe

The discharge pipe is connected to the discharge
port T, fig. 3.

The discharge pipe should be at least the same di­ameter as the discharge port of the pump, to mini­mize pressure drop, high flow velocities and noise.

2.3.3 Bypass

If there is any danger of the pump running against a
closed discharge valve, a minimum liquid flow
through the pump should be ensured by connecting
a bypass/a drain to the discharge pipe. The drain
can for instance be connected to a tank.

A minimum flow rate equal to 10% of the flow rate at
maximum efficiency is needed at all times. Flow rate
and head at maximum efficiency are stated on the
pump nameplate.

2.4 Installation examples

The pump is suitable for a wide range of applica­tions.

Some examples are shown on page 102.

TM00 0691 4896

7

3. Electrical connections

The electrical connections should be carried out in
accordance with local regulations.

The operating voltage and frequency are marked on
the nameplate. Please make sure that the motor is
suitable for the electricity supply on which it will be
used.

Never make any connections in the pump
terminal box unless the electricity supply
has been switched off.

The pump must be connected to an exter­nal mains switch.

Single-phase motors, 1 x 110/220 V, 60 Hz, do not
incorporate motor protection and must be connected
to an approved motor starter.

Other single-phase motors incorporate a thermal
overload switch and require no additional motor pro­tection.

Three-phase motors must be connected to a motor
starter, the set nominal current of which must corre­spond to the electrical data on the pump nameplate.

Do not start the pump until it has been filled with liq­uid.

Connections should be made as shown on the inside
of the terminal box cover.

Choose one of the two cable entries and knock out
the pre-cut disk.

3.1 Checking of direction of rotation

(Three-phase motors)
Arrows on the motor fan cover indicate the correct di-

rection of rotation.
The pump should rotate counter-clockwise when

viewed from the motor end.
To reverse the direction of rotation, switch off the

electricity supply and interchange any two of the in­coming supply wires.

4. Starting

4.1 Priming

Do not start the pump until it has been filled with liq­uid and vented.

In systems with hot liquids, extreme cau­tion should be exercised when venting the
pump to eliminate the risk of personal in­jury caused by escaping water.

Booster systems and systems where the liquid
level on the suction side is above the pump inlet:

1. Close the isolating valves either side of the
pump.

2. Remove the priming plug P, fig. 4.

3. Slowly open the suction valve and keep it open
until a steady stream of liquid runs out the prim­ing port.

4. Close the valve, replace the priming plug and
tighten securely.

5. Open the suction valve.

6. Start the pump and slowly open the discharge
valve until it is fully open.

Fig. 4

P

Pumping from tanks and wells where the liquid
level on the suction side is below the pump inlet:

1. Close the discharge isolating valve.

2. Remove the priming plug P, fig. 4.

3. Pour water through the priming port. Make sure
that the suction pipe and pump are completely
filled with liquid and vented.

4. Replace the priming plug and tighten securely.

5. Start the pump and slowly open the discharge
valve until it is fully open.

4.2 Frequency of starts and stops

Maximum 100 starts per hour.

5. Operation and maintenance

Under normal operating conditions, the pump does
not require any maintenance.

If the pump has been used for pumping liquids that
may leave impurities in the pump, it should be
flushed through with clean water immediately after
use.

5.1 Frost protection

Pumps which are not being used during periods of
frost should be drained to avoid damage.

Remove the priming and drain plugs P and V, fig. 5.
Do not replace the plugs until the pump is to be used

again.

Fig. 5

P

V

TM00 0692 4896

TM00 0693 4896

8

6. Fault finding chart

Before attempting to diagnose any fault, make sure that the electricity supply has been switched off.

Fault Cause

1. Pump does not start. a) Supply failure.

2. Pump runs but gives no water. a) Pump is not filled with liquid.

3. Pump runs at reduced
capacity.

4. Pump stops during operation. a) Thermal overload switch in motor or external motor protection cuts

b) Control circuit has cut out or is defective.
c) Motor is defective.
d) Pump is blocked by impurities.

b) Suction or discharge pipe is blocked by impurities.
c) Pump is blocked by impurities.
d) Suction lift is too great.
e) Leakage in suction pipe.
f) Foot or non-return valve is blocked.

a) Wrong direction of rotation (three-phase).
b) Suction lift is too great.
c) Suction or discharge pipe is blocked.
d) Pump is blocked by impurities.
e) Foot or non-return valve is partly blocked.

out.

b) Control circuit has cut out.

7. Disposal

Disposal of this product or parts of it must be carried
out according to the following guidelines:

1. Use the local public or private waste collection
service.

2. In case such waste collection service does not
exist or cannot handle the materials used in the
product, please deliver the product or any haz­ardous materials from it to your nearest Grundfos
company or service workshop.

Subject to alterations..

9

1.

TM00 0694 4896

102

TM00 0695 4896

TM00 0697 4896

TM00 0696 4896

L4

P

T

S

H1

V

L2

L3

138
160

L2

[mm]L3[mm]L4[mm]H1[mm]H2[mm]

ø8.5

108
130

*S *T *P *V

CH 2-30 92 81 117 155 90 Rp 1 Rp 1 Rp

H2

3

/8 Rp 3/8
CHN 2-30 92 81 117 155 90 Rp 1 Rp 1 Rp 3/8 Rp 3/8
CH 2-40 110 99 135 155 90 Rp 1 Rp 1 Rp 3/8 Rp 3/8
CHN 2-40 110 99 135 155 90 Rp 1 Rp 1 Rp 3/8 Rp 3/8
CH 2-50 128 117 154 155 90 Rp 1 Rp 1 Rp 3/8 Rp 3/8
CHN 2-50 128 117 154 155 90 Rp 1 Rp 1 Rp 3/8 Rp 3/8
CH 2-60 146 135 172 155 90 Rp 1 Rp 1 Rp 3/8 Rp 3/8
CHN 2-60 146 135 172 155 90 Rp 1 Rp 1 Rp 3/8 Rp 3/8
CH 4-20 83 72 108 155 90 Rp 1 / Rp 11/4 Rp 1 Rp 3/8 Rp 3/8
CHN 4-20 83 72 108 155 90 Rp 1 / Rp 11/4 Rp 1 Rp 3/8 Rp 3/8
CH 4-30 110 99 135 155 90 Rp 1 / Rp 11/4 Rp 1 Rp 3/8 Rp 3/8
CHN 4-30 110 99 135 155 90 Rp 1 / Rp 11/4 Rp 1 Rp 3/8 Rp 3/8
CH 4-40 137 126 163 155 90 Rp 1 / Rp 11/4 Rp 1 Rp 3/8 Rp 3/8
CHN 4-40 137 126 163 155 90 Rp 1 / Rp 11/4 Rp 1 Rp 3/8 Rp 3/8
CH 4-50 164 153 190 155 90 Rp 11/4 Rp 1 Rp 3/8 Rp 3/8
CHN 4-50 164 153 190 155 90 Rp 11/4 Rp 1 Rp 3/8 Rp 3/8
CH 4-60 191 180 217 155 90 Rp 11/4 Rp 1 Rp 3/8 Rp 3/8
CHN 4-60 191 180 217 155 90 Rp 11/4 Rp 1 Rp 3/8 Rp 3/8
CH 8-20 69 58 77 240 110 Rp 11/2 Rp 11/4 Rp 1/2 Rp 1/2
CH 8-25 99 88 107 240 110 Rp 11/2 Rp 11/4 Rp 1/2 Rp 1/2
CH 8-30 99 88 107 240 110 Rp 11/2 Rp 11/4 Rp 1/2 Rp 1/2
CH 8-40 99 88 107 240 110 Rp 11/2 Rp 11/4 Rp 1/2 Rp 1/2
CH 8-50 129 118 137 240 110 Rp 11/2 Rp 11/4 Rp 1/2 Rp 1/2
CH 8-60 129 118 137 240 110 Rp 11/2 Rp 11/4 Rp 1/2 Rp 1/2
CH 12-10 69 58 77 240 110 Rp 11/2 Rp 11/2 Rp 1/2 Rp 1/2
CH 12-20 69 58 77 240 110 Rp 11/2 Rp 11/2 Rp 1/2 Rp 1/2
CH 12-30 99 88 107 240 110 Rp 11/2 Rp 11/2 Rp 1/2 Rp 1/2
CH 12-40 99 88 107 240 110 Rp 11/2 Rp 11/2 Rp 1/2 Rp 1/2
CH 12-50 129 118 137 240 110 Rp 11/2 Rp 11/2 Rp 1/2 Rp 1/2
CH 12-60 129 118 137 240 110 Rp 11/2 Rp 11/2 Rp 1/2 Rp 1/2

8556 0504

*R

ISO 7/1

p

103

Denmark

GRUNDFOS DK A/S
Martin Bachs Vej 3
DK-8850 Bjerringbro
Tlf.: [phone]
Telefax: [phone]
E-mail: [e-mail]
www.grundfos.com/DK

Albania

COALB sh.p.k.
Rr.Dervish Hekali N.1
AL-Tirana
Phone: [phone]
Telefax: [phone]

Argentina

Bombas GRUNDFOS de Argentina S.A.
Ruta Panamericana km. 37.500 Lote
34A
1619 - Garin
Pcia. de Buenos Aires
Phone: [phone]
Telefax: [phone]

Australia

GRUNDFOS Pumps Pty. Ltd.
P.O. Box 2040
Regency Park
South Australia 5942
Phone: [phone]
Telefax: [phone]

Austria

GRUNDFOS Pumpen Vertrieb
Ges.m.b.H.
Grundfosstraße 2
A-5082 Grödig/Salzburg
Tel.: [phone]
Telefax: [phone]

Belgium

N.V. GRUNDFOS Bellux S.A.
Boomsesteenweg 81-83
B-2630 Aartselaar
Tél.: [phone]
Télécopie: [phone]

Belorussia

Представительство ГРУНДФОС в
Минске
220090 Минск ул.Олешева 14
Телефон: [phone]
Факс: [phone]

Bosnia/Herzegovina

GRUNDFOS Sarajevo
Paromlinska br. 16,
BiH-71000 Sarajevo
Phone: [phone]
Telefax: [phone]

Brazil

GRUNDFOS do Brasil Ltda.
Rua Tomazina 106
CEP 83325 - 040
Pinhais - PR
Phone: [phone]
Telefax: [phone]

Bulgaria

GRUNDFOS Pumpen Vertrieb
Representative Office - Bulgaria
Bulgaria, 1421 Sofia
Lozenetz District
105-107 Arsenalski blvd.
Phone: [phone]
Telefax: [phone]

Canada

GRUNDFOS Canada Inc.
2941 Brighton Road
Oakville, Ontario
L6H 6C9
Phone: [phone]
Telefax: [phone]

China

GRUNDFOS Pumps (Shanghai) Co. Ltd.
22 Floor, Xin Hua Lian Building
755-775 Huai Hai Rd, (M)
Shanghai 200020
PRC
Phone: [phone]
Telefax: [phone]

Croatia

GRUNDFOS predstavništvo Zagreb
Radoslava Cimermana 64a
HR-10000 Zagreb
Phone: [phone]
Telefax: [phone]

Czech Republic

GRUNDFOS s.r.o.
Čajkovského 21
779 00 Olomouc
Phone: [phone]
Telefax: [phone]

Estonia

GRUNDFOS Pumps Eesti OÜ
Peterburi tee 44
11415 Tallinn
Tel: + 372 606 1690
Fax: + 372 606 1691

Finland

OY GRUNDFOS Pumput AB
Mestarintie 11
Piispankylä
FIN-01730 Vantaa (Helsinki)
Phone: [phone]
Telefax: [phone]

France

Pompes GRUNDFOS Distribu tion S.A.
Parc d’Activités de Chesnes
57, rue de Malacombe
F-38290 St. Quentin Fallavier (Lyon)
Tél.: [phone]
Télécopie: [phone]

Germany

GRUNDFOS GMBH
Schlüterstr. 33
40699 Erkrath
Tel.: [phone]
Telefax: [phone]
e-mail: [e-mail]
Service in Deutschland:
e-mail: [e-mail]

Greece

GRUNDFOS Hellas A.E.B.E.
20th km. Athinon-Markopoulou Av.
P.O. Box 71
GR-19002 Peania
Phone: [phone]
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: [phone]
Telefax: [phone]

Hungary

GRUNDFOS Hungária Kft.
Park u. 8
H-2045 Törökbálint,
Phone: [phone]
Telefax: [phone]

India

GRUNDFOS Pumps India Private Lim­ited
Flat A, Ground Floor
61/62 Chamiers Aptmt
Chamiers Road
Chennai 600 028
Phone: [phone]
Telefax: [phone]

Indonesia

PT GRUNDFOS Pompa
Jl. Rawa Sumur III, Blok III / CC-1
Kawasan Industri, Pulogadung
Jakarta 13930
Phone: [phone]
Telefax: [phone]/460 6901

Ireland

GRUNDFOS (Ireland) Ltd.
Unit 34, Stillorgan Industrial Park
Blackrock
County Dublin
Phone: [phone]
Telefax: [phone]

Italy

GRUNDFOS Pompe Italia S.r.l.
Via Gran Sasso 4
I-20060 Truccazzano (Milano)
Tel.: [phone]
Telefax: [phone]/95838461

Japan

GRUNDFOS Pumps K.K.
1-2-3, Shin Miyakoda
Hamamatsu City
Shizuoka pref. 431-21
Phone: [phone]
Telefax: [phone]

Korea

GRUNDFOS Pumps Korea Ltd.
6th Floor, Aju Building 679-5
Yeoksam-dong, Kangnam-ku, 135-916
Seoul, Korea
Phone: [phone]
Telefax: [phone]

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-2600 Vilnius
Tel: + 370 52 395 430
Fax: + 370 52 395 431

Macedonia

MAKOTERM
Dame Gruev Street 7
MK-91000 Skoplje
Phone: [phone]
Telefax: [phone]

Malaysia

GRUNDFOS Pumps Sdn. Bhd.
7 Jalan Peguam U1/25
Glenmarie Industrial Park
40150 Shah Alam
Selangor
Phone: [phone]
Telefax: [phone]

Mexico

Bombas GRUNDFOS de Mexico S.A. de
C.V.
Boulevard TLC No. 15
Parque Industrial Stiva Aeropuerto
Apodaca, N.L. 66600
Mexico
Phone: [phone]
Telefax: [phone]

Netherlands

GRUNDFOS Nederland B.V.
Postbus 104
NL-1380 AC Weesp
Tel.: [phone]
Telefax: [phone]/492299

New Zealand

GRUNDFOS Pumps NZ Ltd.
17 Beatrice Tinsley Crescent
North Harbour Industrial Estate
Albany, Auckland
Phone: [phone]
Telefax: [phone]

Norway

GRUNDFOS Pumper A/S
Strømsveien 344
Postboks 235, Leirdal
N-1011 Oslo
Tlf.: [phone]
Telefax: [phone]

Poland

GRUNDFOS Pompy Sp. z o.o.
ul. Klonowa 23
Baranowo k. Poznania
PL-62-081 Przeźmierowo
Phone: [phone]
Telefax: ([phone]

Portugal

Bombas GRUNDFOS Portugal, S.A.
Rua Calvet de Magalhães, 241
Apartado 1079
P-2770-153 Paço de Arcos
Tel.: [phone]
Telefax: [phone]

Republic of Moldova

MOLDOCON S.R.L.
Bd. Dacia 40/1
MD-277062 Chishinau
Phone: [phone]
Telefax: [phone]

România

GRUNDFOS Pompe România SRL
Sos. Panduri No. 81- 83, Sector 5
RO-050657 Bucharest
Phone: [phone]
Telefax: [phone]
E-mail: [e-mail]

Russia

ООО Грундфос
Россия, 109544 Москва, Школьная 39
Тел. [phone]
Факс [phone]

E-mail [e-mail]

Serbia and Montenegro

GRUNDFOS Predstavništvo Beograd
Dr. Milutina Ivkovića 2a/29
YU-11000 Beograd
Phone: [phone]
Telefax: [phone]

Singapore

GRUNDFOS (Singapore) Pte. Ltd.
24 Tuas West Road
Jurong Town
Singapore 638381
Phone: [phone]
Telefax: [phone]

Slovenia

GRUNDFOS PUMPEN VERTRIEB
Ges.m.b.H.,
Podružnica Ljubljana
Blatnica 1, SI-1236 Trzin
Phone: [phone]
Telefax: [phone]
E-mail: slovenia@grundf os.si

Spain

Bombas GRUNDFOS España S.A.
Camino de la Fuentecilla, s/n
E-28110 Algete (Madrid)
Tel.: [phone]
Telefax: [phone]

Sweden

GRUNDFOS AB
Lunnagårdsgatan 6
431 90 Mölndal
Tel.: [phone]
Telefax: [phone]

Switzerland

GRUNDFOS Pumpen AG
Bruggacherstrasse 10
CH-8117 Fällanden/ZH
Tel.: [phone]
Telefax: [phone]

Taiwan

GRUNDFOS Pumps (Taiwan) Ltd.
7 Floor, 219 Min-Chuan Road
Taichung, Taiwan, R.O.C.
Phone: [phone]
Telefax: [phone]

Thailand

GRUNDFOS (Thailand) Ltd.
947/168 Moo 12, Bangna-Trad Rd., K.M.
3,
Bangna, Phrakanong
Bangkok 10260
Phone: [phone] ... 91
Telefax: [phone] ... 6

Turkey

GRUNDFOS POMPA San. ve Tic. Ltd.
Sti.
Gebze Organize Sanayi Bölgesi
Ihsan dede Caddesi,

2. yol 200. Sokak No. 204
41490 Gebze/ Kocaeli
Phone: +90 - 262-679 7979
Telefax: +90 - 262-679 7905
E-mail: [e-mail]

Ukraine

ТОВ ГРУНДФОС Украина
ул. Владимирская, 71, оф. 45
г. Киев, 01033, Украина,
Тел. [phone]
Факс [phone]

United Arab Emirates

GRUNDFOS Gulf Distribution
P.O. Box 16768
Jebel Ali Free Zone
Dubai
Phone: [phone]
Telefax: [phone]

United Kingdom

GRUNDFOS Pumps Ltd.
Grovebury Road
Leighton Buzzard/Beds. LU7 8TL
Phone: [phone]
Telefax: [phone]

U.S.A.

GRUNDFOS Pumps Corporation
17100 West 118th Terrace
Olathe, Kansas 66061
Phone: [phone]
Telefax: [phone]

Usbekistan

Предста вительс тво ГРУНДФОС в
Ташке нте
700000 Ташкен т ул.Усм ан а Носира 1-й
тупик 5
Телефон: [phone]
Факс: [phone]

Addresses revised 29.09.2005

105

106

107

Being responsible is our foundation

Thinking ahead makes it possible

Innovation is the essence

430014 1005

Repl. 430014 0205

www.grundfos.com

157