Grundfos DMX Series User manual

15.720023-V3.0
Diaphragm Dosing Pump
DMX model 227
DMX 430-5 DMX 1120-5
DMX 770-3 DMX 1520-3
DMX 860-5 DMX 2000-3
Installation and operating instructions
Read this manual completely and keep it!
Subject to change.

215.720023-V3.0
DMX model 227
Denmark
GRUNDFOS DK A/S Canada Germany
Martin Bachs Vej 3 GRUNDFOS Canada Inc. Grundfos Alldos
DK-8850 Bjerringbro 2941 Brighton Road Dosing & Disinfection
Tlf.: [phone] Oakville, Ontario ALLDOS Eichler GmbH
Telefax: [phone] L6H 6C9 Reetzstraße 85
E-mail: [e-mail] Phone: [phone] D-76327 Pfinztal (Söllingen)
www.grundfos.com/DK Telefax: [phone] Tel.: [phone]
Telefax: [phone]
Argentina China E-mail: [e-mail]
Bombas GRUNDFOS de Argentina S.A. Grundfos Alldos
Ruta Panamericana km. 37.500 Lote 34A Dosing & Disinfection Germany
1619 - Garin ALLDOS (Shanghai) Water Technology Co. GRUNDFOS GMBH
Pcia. de Buenos Aires Ltd. Schlüterstr. 33
Phone: [phone] West Unit, 1 Floor, No. 2 Building (T 4-2) D-40699 Erkrath
Telefax: [phone] Jinhu Road, Jin Qiao Export Process- Tel.: [phone]
ing Zone Telefax: [phone]
Australia Pudong New Area E-mail: [e-mail]
Grundfos Alldos Shanghai, 201206 Service in Deutschland:
Dosing & Disinfection Phone: [phone] E-mail: [e-mail]
ALLDOS Oceania Pty. Ltd. Telefax: [phone]
Unit 3 / 74 Murdoch Circuit E-mail: [e-mail] Greece
Acacia Ridge QLD 4100 GRUNDFOS Hellas A.E.B.E.
Phone: [phone] China 20th km. Athinon-Markopoulou Av.
Telefax: [phone] GRUNDFOS Pumps (Shanghai) Co. Ltd. P.O. Box 71
E-mail: alldos[email protected]m 22 Floor, Xin Hua Lian Building GR-19002 Peania
755-775 Huai Hai Rd, (M) Phone: [phone]
Australia Shanghai 200020 Telefax: +0030-210-66 46 273
GRUNDFOS Pumps Pty. Ltd. PRC
P.O. Box 2040 Phone: [phone] Hong Kong
Regency Park Telefax: [phone] GRUNDFOS Pumps (Hong Kong) Ltd.
South Australia 5942 Unit 1, Ground floor
Phone: [phone] Croatia Siu Wai Industrial Centre
Telefax: [phone] GRUNDFOS predstavništvo Zagreb 29-33 Wing Hong Street &
Cebini 37, Buzin 68 King Lam Street, Cheung Sha Wan
Austria HR-10000 Zagreb Kowloon
GRUNDFOS Pumpen Vertrieb Ges.m.b.H. Phone: [phone] Phone: [phone]
Grundfosstraße 2 Telefax: [phone] Telefax: [phone]
A-5082 Grödig/Salzburg
Tel.: [phone] Czech Republic Hungary
Telefax: [phone] GRUNDFOS s.r.o. GRUNDFOS Hungária Kft.
Čapkovského 21 Park u. 8
Belgium 779 00 Olomouc H-2045 Törökbálint,
N.V. GRUNDFOS Bellux S.A. Phone: [phone] Phone: [phone]
Boomsesteenweg 81-83 Telefax: [phone] Telefax: [phone]
B-2630 Aartselaar
Tél.: [phone]
Télécopie: [phone]

3V3.0
DMX model 227
Estonia India
GRUNDFOS Pumps Eesti OÜ GRUNDFOS Pumps India Private Limited
1Peterburi tee 44 118 Old Mahabalipuram Road
11415 Tallinn Thoraipakkam
Belorussia Tel: + 372 606 1690 Chamiers Road
Представительство ГРУНДФОС вМинске Fax: + 372 606 1691 Chennai 600 096
220090 Минск ул.Олешева 14 Phone: [phone]
Телефон: [phone] Finland
Факс: [phone] OY GRUNDFOS Pumput AB Indonesia
Mestarintie 11 PT GRUNDFOS Pompa
Bosnia/Herzegovina FIN-01730 Vantaa Jl. Rawa Sumur III, Blok III / CC-1
GRUNDFOS Sarajevo Phone: [phone] Kawasan Industri, Pulogadung
Paromlinska br. 16, Telefax: [phone] Jakarta 13930
BiH-71000 Sarajevo Phone: [phone]
Phone: [phone] France Telefax: [phone] / 460 6901
Telefax: [phone] Grundfos Alldos
Dosing & Disinfection Ireland
Brazil ALLDOS S.A.R.L. GRUNDFOS (Ireland) Ltd.
GRUNDFOS do Brasil Ltda. 7, rue Gutenberg Unit A, Merrywell Business Park
Rua Tomazina 106 F-67610 La Wantzenau Ballymount Road Lower
CEP 83325 - 040 Tél.: [phone] Dublin 12
Pinhais - PR Télécopie: [phone] Phone: [phone]
Phone: [phone] E-mail : [e-mail] Telefax: [phone]
Telefax: [phone] France Italy
Bulgaria Pompes GRUNDFOS Distribution S.A. GRUNDFOS Pompe Italia S.r.l.
GRUNDFOS Pumpen Vertrieb Parc d’Activités de Chesnes Via Gran Sasso 4
Representative Office - Bulgaria 57, rue de Malacombe I-20060 Truccazzano (Milano)
Bulgaria, 1421 Sofia F-38290 St. Quentin Fallavier (Lyon) Tel.: [phone]
Lozenetz District Tél.: [phone] Telefax: [phone] / 95838461
105-107 Arsenalski blvd. Télécopie: [phone]
Phone: [phone] Japan
Telefax: [phone] GRUNDFOS Pumps K.K.
1-2-3, Shin Miyakoda
Hamamatsu City
Shizuoka pref. 431-21
Phone: [phone]
Telefax: [phone]

415.720023-V3.0
DMX model 227
Korea Portugal Switzerland
GRUNDFOS Pumps Korea Ltd. Bombas GRUNDFOS Portugal, S.A. GRUNDFOS Pumpen AG
6th Floor, Aju Building 679-5 Rua Calvet de Magalhães, 241 Bruggacherstrasse 10
Yeoksam-dong, Kangnam-ku, 135-916 Apartado 1079 CH-8117 Fällanden/ZH
Seoul, Korea P-2770-153 Paço de Arcos Tel.: [phone]
Phone: [phone] Tel.: [phone] Telefax: [phone]
Telefax: [phone] Telefax: [phone] Taiwan
Latvia România GRUNDFOS Pumps (Taiwan) Ltd.
SIA GRUNDFOS Pumps Latvia GRUNDFOS Pompe România SRL 7 Floor, 219 Min-Chuan Road
Deglava biznesa centrs Bd. Biruintei, nr 103 Taichung, Taiwan, R.O.C.
Augusta Deglava ielā60, LV-1035, Rīga, Pantelimon county Ilfov Phone: [phone]
Tālr.: + 371 714 9640, 7 149 641 Phone: [phone] Telefax: [phone]
Fakss: + 371 914 9646 Telefax: [phone]
E-mail: romani[email protected] Thailand
Lithuania GRUNDFOS (Thailand) Ltd.
GRUNDFOS Pumps UAB Russia 947/168 Moo 12, Bangna-Trad Rd., K.M. 3,
Smolensko g. 6 ООО Грундфос Bangna, Phrakanong
LT-03201 Vilnius Россия, 109544 Москва, Школьная 39 Bangkok 10260
Tel: + 370 52 395 430 Тел. [phone] Phone: [phone] ... 91
Fax: + 370 52 395 431 Факс [phone] Telefax: [phone] ... 6
E-mail [e-mail]
Malaysia Turkey
GRUNDFOS Pumps Sdn. Bhd. Serbia GRUNDFOS POMPA San. ve Tic. Ltd. Sti.
7 Jalan Peguam U1/25 GRUNDFOS Predstavništvo Beograd Gebze Organize Sanayi Bölgesi
Glenmarie Industrial Park Dr. Milutina Ivkovića 2a/29 Ihsan dede Caddesi,
40150 Shah Alam YU-11000 Beograd 2. yol 200. Sokak No. 204
Selangor Phone: [phone] Gebze/ Kocaeli
Phone: [phone] Telefax: [phone] Phone: +90 - 262-679 7979
Telefax: [phone] Telefax: +90 - 262-679 7905
Singapore E-mail: [email protected]
México GRUNDFOS (Singapore) Pte. Ltd.
Bombas GRUNDFOS de México S.A. de 24 Tuas West Road Ukraine
C.V. Jurong Town ТОВ ГРУНДФОС Украина
Boulevard TLC No. 15 Singapore 638381 ул. Владимирская, 71, оф. 45
Parque Industrial Stiva Aeropuerto Phone: [phone] г. Киев, 01033, Украина,
Apodaca, N.L. 66600 Telefax: [phone] Тел. [phone]
Phone: [phone] Факс [phone]
Telefax: [phone]

5V3.0
DMX model
0Slovenia
GRUNDFOS PUMPEN VERTRIEB United Arab Emirates
Netherlands Ges.m.b.H., GRUNDFOS Gulf Distribution
Grundfos Alldos Podružnica Ljubljana P.O. Box 16768
Dosing & Disinfection Blatnica 1, SI-1236 Trzin Jebel Ali Free Zone
ALLDOS BV Phone: [phone] Dubai
Leerlooiersstraat 6 Telefax: [phone] Phone: [phone]
NL-8601 WK Sneek E-mail: [email protected] Telefax: [phone]
Tel.: [phone]
Telefax: [phone] South Africa United Kingdom
E-mail: alldos[email protected] Grundfos Alldos Grundfos Alldos
Dosing & Disinfection Dosing & Disinfection
Netherlands ALLDOS (Pty) LTD ALLDOS Ltd.
GRUNDFOS Nederland B.V. 98 Matroosberg Road, Waterkloof Park 39 Gravelly Industrial Park, Tyburn Road
Postbus 104 P.O. Box 36505, Menlo Park 0102 Birmingham B24 8TG
NL-1380 AC Weesp 0181 ZA Pretoria Phone: [phone]
Tel.: [phone] E-mail: [e-mail] Telefax: [phone]
Telefax: [phone]/492299 E-mail: [e-mail]
Spain
New Zealand Bombas GRUNDFOS España S.A. United Kingdom
GRUNDFOS Pumps NZ Ltd. Camino de la Fuentecilla, s/n GRUNDFOS Pumps Ltd.
17 Beatrice Tinsley Crescent E-28110 Algete (Madrid) Grovebury Road
North Harbour Industrial Estate Tel.: [phone] Leighton Buzzard/Beds. LU7 8TL
Albany, Auckland Telefax: [phone] Phone: [phone]
Phone: [phone] Telefax: [phone]
Telefax: [phone] Sweden
GRUNDFOS AB U.S.A.
Norway Lunnagårdsgatan 6 GRUNDFOS Pumps Corporation
GRUNDFOS Pumper A/S 431 90 Mölndal 17100 West 118th Terrace
Strømsveien 344 Tel.: [phone] Olathe, Kansas 66061
Postboks 235, Leirdal Telefax: [phone] Phone: [phone]
N-1011 Oslo Telefax: [phone]
Tlf.: [phone] Switzerland
Telefax: [phone] Grundfos Alldos Usbekistan
Dosing & Disinfection Представительство ГРУНДФОС в
Poland ALLDOS International AG Ташкенте
GRUNDFOS Pompy Sp. z o.o. Schönmattstraße 4 700000 Ташкент ул.Усмана Носира 1-й
ul. Klonowa 23 CH-4153 Reinach тупик 5
Baranowo k. Poznania Tel.: [phone] Телефон: [phone]
PL-62-081 Przeźmierowo Telefax: [phone] Факс: [phone]
Pho
ne: ([phone] E-mail: [e-mail]
T
elefax: ([phone]
Addresses revised 15.01.2007

615.720023-V3.0
DMX model 227
Type key
(Cannot be used for pump configuration.)

7V3.0
DMX model 227
Example: DMX 2000 -3 D -PP /E /PP -X -J 2 TT X E0
Type range DMX...
Maximum flow [l/h]
Maximum pressure [bar] Code Mains plug
X No plug
Control variant Code
without D Code Connection,
suction/discharge
R Flange, DN 65, with
connector for PVC pipe,
65/75 mm
T Flange, DN 65, with
connector for PP pipe,
65/75 mm
U Flange, DN 65, with
connector for SS pipe,
65/75 mm
Y Flange, DN 65
Z Flange, ANSI, 2 1/2"
Dosing head variant Code
Polypropylene PP
Polyvinyl chloride PVC
Stainless steel SS
PP + integrated diaphragm PP-L
leakage detection
PVC + integrated dia- PVC-L
phragm leakage detection
SS + integrated diaphragm SS-L
leakage detection
Gasket material Code
EPDM (ethylene propylene E
diene monomer)
FKM (fluorocarbon) V
Code Valve type
2 Spring-loaded
0,1 bar suction,
0,1 bar discharge
Valve ball material Code
Polypropylene PP
Polyvinyl chloride PVC
Stainless steel SS
Code Supply voltage
0 Without motor (flange for
single head: IEC BG90 B14
duplex head:
IEC BG100 B14)
F Without motor,
NEMA flange 145C (US)
J 220-240 V / 380-420 V,
50/60Hz
Control panel position Code
no control panel X
Code Motor variant
E0 3-phase PTC 400 V
for frequency control
E6 3-phase PTC 400 V
with frequency control

815.720023-V3.0
DMX model 227
Content
Installationdata ................................................................................................10
Installation diagram ........................................................................................10
1 Of General Interest ................................................................................11
1.1 In General ................................................................................................ 11
1.2 Using this Paper ...................................................................................... 11
1.3 Warranty .................................................................................................. 11
2 Safety Instructions ................................................................................12
2.1 Application of the Product ....................................................................... 12
2.2 Obligations of the Operating Authority .................................................... 12
2.3 Averting Dangers .................................................................................... 12
3 Technical Data .......................................................................................13
3.1 Pump Types ............................................................................................. 13
3.2 Ambient and Operating Conditions ........................................................ 13
3.3 Dosing medium ....................................................................................... 13
3.3.1 Admissible temperature of dosing liquids ................................... 13
3.3.2 Maximum permissible viscosity ................................................... 14
3.4 Pump Performance.................................................................................. 14
3.4.1 Accuracy ......................................................................................... 14
3.4.2 Performance ................................................................................. 14
3.5 Suction heights ........................................................................................ 15
3.5.1 Media with a viscosity similar to water ........................................ 15
3.5.2 Suction heights for media with maximum permissible viscosity . 15
3.6 Dosing Curves ........................................................................................ 15
3.7 Weight ..................................................................................................... 15
3.8 Materials .................................................................................................. 15
3.9 Dimensional Drawing ............................................................................. 16
4 Installation .............................................................................................17
4.1 Installation Information ............................................................................ 17
4.2 Transport and Storage ............................................................................ 19
4.3 Mounting ................................................................................................. 19
4.4 Connecting the Suction and Pressure Lines .......................................... 19
4.5 Electrical Connections ............................................................................ 20
4.5.1 Connect the motor ....................................................................... 20
5 Commissioning .....................................................................................21
5.1 Inspections before Commissioning ........................................................ 21
5.2 Commissioning ....................................................................................... 21
6 Operation ...............................................................................................22
6.1 Description of the Device ........................................................................ 22

9V3.0
DMX model 227
6.2 Principle of function ................................................................................. 23
6.3 Switching on / off ..................................................................................... 23
6.3.1 Switching on ................................................................................ 23
6.3.2 Switching off ................................................................................. 23
6.4 Adjustment of dosing rate using frequency converter ............................ 23
23
6.5 Possible Failures ..................................................................................... 24
7 Electronics Diaphragm Breakage Sensor ............................................25
7.1 Technical Data of the Electronics ............................................................ 25
7.2 Dimensional Drawing (Electronics Enclosure) ....................................... 25
7.2 Function................................................................................................... 25
7.2.1 Pumps prepared for a diaphragm breakage indication .............. 25
7.2.2 Using the Contacts ...................................................................... 26
7.2.3 Description of the Device............................................................. 26
7.3 Electrical Connections of the Electronics ............................................... 26
7.3.1 Relay Outputs .............................................................................. 27
7.4 Screwing the Sensor into the Dosing Head ........................................... 28
7.5 Commissioning ....................................................................................... 28
7.6 Maintenance ........................................................................................... 29
8 Maintenance ..........................................................................................30
8.1 Rates for cleaning and maintenance...................................................... 30
8.2 Gear oil change....................................................................................... 30
8.3 Cleaning the Suction and Pressure Valves ............................................ 31
8.4 Exchanging the Diaphragm .................................................................... 32
A. Appendix: Dosing Curves for DMX model 227 .....................................33

10 15.720023-V3.0
DMX model 227
Installationdata
NOTE Please fill in this form following commissioning. It will
help you and your GRUNDFOS servicing partner to
adjust the unit during subsequent corrections.
Owner:
GRUNDFOS customer No.:
Contract No.:
Order No. of unit:
Serial No. of unit:
Put into service on:
Location of unit:
Used for:
Installation diagram

11V3.0
DMX model 227
1 Of General Interest
1.1 InGeneral
This operation manual contains all information for safe operation of the described
product.
If you require further information or if any problems arise which are not reflected
in detail in this manual, contact Grundfos directly for the information needed.
1.2 Using this Paper
❏Descriptions are written as plain text.
❏Lists are indicated by squares (❏), sublists by dashes (-).
❏Operation steps are indicated by bullets (●), substeps by small bullets (•).
❏Cross-references are indicated by
italic letters and an arrow (➜).
❏The headings
WARNING , CAUTION and NOTE have the following
meaning:
!
WARNING Danger of injuries and accidents!
CAUTION Danger of incorrect operation or damage to the product!
NOTE There is an exceptional feature.
1.3 Warranty
Warranty in accordance with our general terms of sale and delivery shall only be
valid, if
❏the product is used according to the information within this paper,
❏the product is not being opened or used improperly,
❏maintenance and repair is implemented exclusively by authorized and
qualified personnel,
❏original spare parts are used for repairs.

12 15.720023-V3.0
DMX model 227
2 Safety Instructions
2.1 Application of the Product
The dosing pump described here is suitable for dosing liquid, non-abrasive and
non-inflammable media strictly complying with the instructions of this manual.
The dosing pumps model 227 are not certified according to the guideline
94/9/EC.The application of these pumps in explosive operational facilities according
to the guideline 94/9/EC is therefore not permitted.
!
WARNING Other applications are not intended and are not
permitted. Grundfos accept no responsibility for
damages caused by unintended use.
2.2 Obligations of the Operating Authority
The operating authority of the plant is responsible for
❏instructing the operation personnel
❏arranging regular maintenance
2.3 Averting Dangers
!
WARNING When dosing dangerous media, observe the
corresponding safety precautions!
Wear protective gloves and glasses when executing
work at the dosing head, connections or lines!
Only use the prescribed line types!
Do not open the pump!
Repair only by authorized personnel!

13V3.0
DMX model 227
3 Technical Data
3.1 Pump Types
3.2 Ambient and Operating Conditions
Admissible ambient temperature 0 °C to +40 °C
Admissible storage temperature -20 °C to + 70 °C
Admissible humidity rel. humidity: 95% (not condensing)
CAUTION Danger of malfunctioning or damage!
Pumps with electronics are only suitable for indoor use!
Do not install outdoors!
Noise level
72 ± 5 dB (A), testing following DIN 45635-01-KL3
Minimum counterpressure 1 bar
These data refer to the pressure valve of the pump. Pressure losses along the way
to the injection point inclusively are not taken into account.
Maximum pressure suction side 1 bar
3.3 Dosing medium
The dosing medium must have the following basic characteristics:
- Liquid
- Non-abrasive
3.3.1 Admissible temperature of dosing liquids
Materials up to 10 bar
PVC 0 °C - 40 °C
1.4571 1) -10 °C - 70 °C
PP 0 °C - 40 °C
1) For SIP/CIP applications 145 °C are admissible for a short time
(approx. 15 min) at < 2 bar .
CAUTION Observe freezing and boiling point of the medium!
Simple pump Double pump Simple pump Double pump
DMX 430-5 DMX 430-5/430-5
DMX 860-5 DMX 860-5/860-5
DMX 1120-5 DMX 1120-5/1120-5
DMX 770-3 DMX 770-3/770-3
DMX 1520-3 DMX 1520-3/1520-3
DMX 2000-3 DMX 2000-3/2000-3
2,2 kW
Order No. Dosing
head size Stroke volume [ml]
Motor
1 256
2 457
1,5 kW 2,2 kW
1,5 kW

14 15.720023-V3.0
DMX model 227
*) maximum counterpressure
1) Operation with frequency converter
3.4 Pump Performance
3.4.1 Accuracy
Dosing flow fluctuation < ± 2 % within the control range 1:10
These data refer to:
- dosing medium water
- fully deaerated dosing head
- standard version of pump
3.4.2 Performance
The data in the following table refer to:
- maximum counterpressure
- dosing medium water
- flooded suction 0.5 m w. c.
- fully deaerated dosing head
- three-phase 400 V motor
3.3.2 Maximum permissible viscosity
50 Hz 60 Hz
DMX 430-5 DMX 430-5/430-5
1000 800
DMX 860-5 DMX 860-5/860-5
800 400
DMX 1120-5 DMX 1120-5/1120-5
400 200
DMX 770-3 DMX 770-3/770-3
800 400
DMX 1520-3 DMX 1520-3/1520-3
400 200
DMX 2000-3 DMX 2000-3/2000-3
200 100
1
2
Simple
pump Double pump
Dosing
head
size
Viscosity
[mPas]
Q Strokes Strokes Strokes
[bar] [psi] [l/h] [H/min] [l/h] [gal/h] [H/min] [l/h] [gal/h] [H/min]
DMX 430-5
430 28 516 136 34 860 227 56
DMX 860-5
860 56 1032 273 67 1720 454 112
DMX 1120-5
1120 73 1344 355 88 2240 592 146
DMX 770-3
770 28 924 244 34 1540 407 56
DMX 1520-3
1520 56 1824 482 67 3040 803 112
DMX 2000-3
2000 73 2400 634 88 4000 1057 146
Q Strokes Strokes Strokes
[bar] [psi] [l/h] [H/min] [l/h] [gal/h] [H/min] [l/h] [gal/h] [H/min]
DMX 430-5/430-5
860 63 1032 273 76 1720 454 126
DMX 860-5/860-5
1720 120 2064 545 144 3440 909 240
DMX 1120-5/1120-5
2240 168 2688 710 202 4480 1184 336
DMX 770-3/770-3
1540 63 1848 488 76 3080 814 126
DMX 1520-3/1520-3
3040 120 3648 964 144 6080 1606 240
DMX 2000-3/2000-3
4000 168 4800 1268 202 8000 2114 336
2
Dosing
head size
1
2
1
Double pump Dosing
head size
Simple pump
60 Hz
573
QQ
344
p max *
QQ
573
344
100 Hz
1)
p max *
50 Hz
50 Hz 60 Hz 100 Hz
1)

15V3.0
DMX model 227
3.5 Suction heights
Data in m w. c.
these data refer to:
- not degassing and not abrasive media
- Newtonian liquids
- temperature of 20 °C
- standard version
3.5.1 Media with a viscosity similar to water
maximum suction height: 3 m w. c.
3.5.2 Suction heights for media with maximum permissible viscosity
Flooded suction 1-3 m
3.6 Dosing Curves
see "Appendix Dosing Curves"
The dosing curves shown in "'Appendix Dosing Curves" are trend curves
They refer to:
❏Performance of single pump
(the flow rate is doubled for the double pump)
❏Water as the dosing medium
❏Zero point of the dosing pump at a counterpressure of 3 bar
❏Standard version of pump
Q = flow rate
f = drive frequency
3.7 Weight
3.8 Materials
Pump
Pump housing Al 226
diaphragm flange GG 25
Opto-electronicdiaphragm monitoring
Housing ABS
Simple pump Weight Double pump Weight
DMX 430-5 -
DMX 2000-3
Approx. 50 kg
DMX 430-5/430-5 -
DMX 2000-3/2000-3
Approx. 90 kg

16 15.720023-V3.0
DMX model 227
3.9 Dimensional Drawing
DMX model 227
*) dimension with double pump
g
57
170
f
290
25
DN65
C
241
ø9.5
ø17
ø185
ø140
d
194.5
ca.a
b
øe
333 b
555 (605 *)

17V3.0
DMX model 227
4 Installation
4.1 InstallationInformation
1
2
3
45
6
7
9
10
8
Picture of optimal installation:
1 Dosing tank 502
2 Electric agitator 509
3 Extraction device 521
4 Suction pulsation damper 516
5 Dosing pump
6 Overflow valve 525
7 Pressure retention valve 525
8 Pulsation damper 517
9 Measuring glass
10 Injection unit 522
p
10
6
13
11 12 For easy deaeration of the pump:
●Install a ball valve (11) with bypass line (back to the dosing tank)
immediately behind the pressure valve
In case of long pressure lines:
●Install a check-back valve (12) into the dosing line.
●Keep the suction line as short as possible, avoid a tangled suction
line
• If necessary, use swept bends instead of elbows.
●Always lay the suction line rising to the suction valve of the dosing
pump.
• Avoid loops which cause air bubbles.
●For non-degassing media with viscosity similar to water, the pump
can be mounted onto the tank (observe the admissible suction
height). Preferably flooded suction.
For dosing media which tend to sedimentation:
●Install a suction line with filter (13) in a way ensuring that the suction
valve remains several centimetres a bove the botton of the tank.
6 Overflow valve
10 Injection unit

18 15.720023-V3.0
DMX model 227
14
p1
p2
p2- p11 bar
>
_
●Note for pressure side installation:
to protect the piping use pulsations damper (8) for rigid piping longer than
3m and tubing longer than 5m.
8
6
10
p
4●In dosing systems that require a long suction line:
Provide a properly dimensioned pulsation damper (4) directly in front of the
suction valve of the dosing pump.
●For outgassing and viscous media: flooded suction
●To protect the dosing pump and the pressure line agains: excessive
development of pressure: Install an overflow valve (6) in the pressure line.
10 Injection unit
●With open outflow of the dosing medium or a counterpressure below 1 bar:
Install a pressure retention valve (7) directly in front of the outlet or the
injection unit.
A positive pressure difference of at least 1 bar has to exist between the
counterpressure at the injection point and the pressure of the dosing medi-
um at the suction valve of the dosing pump. If this cannot be guaranteed:
• Install a pressure retention valve (7) in the pressure line
To avoid the siphon effect:
●Install a pressure retention valve in the dosing line and, if necessary, a
solenoid valve (14) in the suction line.
7p≥2 bar

19V3.0
DMX model 227
4.2 Transport and Storage
●Handle with care, do not throw!
❏Dry and cool storage place.
❏Take heed of upright position of the dosing pump when storing it, so that
gear grease can not leak out.
CAUTION Observe permissible storing temperature!
4.3 Mounting
●Mount the pump horizontally on the tank or on a console.
4.4 Connecting the Suction and Pressure Lines
!
WARNING All lines must be stress-free!
Only use the prescribed line types!
●Depending on the material of the connection flanges (1) (mating flanges)
•Pipe and flange made of 1.4571 steel:
Weld the pipe in the blanking flange
•Pipe and flange made of PP:
Weld the pipe in the flange sleeve
•Pipe and flange made of PVC:
Adhere the pipe in the flange sleeve
❏The internal diameter of the lines, adapters and connectors should not be
smaller than DN 65; if necessary, use bends instead of elbows.
❏The suction lines must be designed such that cavitation is avoided.
IMPORTANT:
●Pulsation dampers should be fitted on both the suction and pressure
sides.
NOTE A positive pressure difference of 10 m water gauge is
required for correct operation of the dosing pump. If the
total of the back-pressure and the static difference in
height between the suction valve and the dosing point is
less than 10 m water gauge, a pressure maintenance
valve must be installed directly upstream of the dosing
point.

20 15.720023-V3.0
DMX model 227
●Connect suction line to suction valve (A).
• Install the suction line in the solution tank such that the foot valve
remains approx. 10 cm above the bottom of the tank.
●Connect pressure line to pressure valve (B).
IMPORTANT:
●To protect the pump from excessively high pressures:
fit an appropriate overflow valve in the pressure line.
●Make sure that the valves are seated correctly
– position of valve disk (C)!
4.5 ElectricalConnections
!
WARNING Prior to the mains connection check if the voltage
indicated on the type plate corresponds with the local
voltage!
Switch off mains before connecting!
No changes at the mains cable and the mains plug may
be done!
NOTE The pump is being switched by switching the mains
voltage.
Do not switch on the mains until the pump should be
started.
4.5.1 Connect the motor
●Connect the motor according to the terminal connection diagram (stamped
in the clamp box).
CAUTION Observe the sense of rotation!
A motor protector, adjusted to nominal motor current,
must be installed by the customer.
For use with a frequency converter the jumpers in the
clamp box have to be set according to the converter
voltage.
In the state of delivery, the jumpers of 3-phase motors
are set for star connection.