Grundfos DMX 226 User manual

DMX 226
Dosing pump
Installation and operating instructions
DMX 226
Installation and operating instructions
(all available languages)
http://net.grundfos.com/qr/i/99558952
GRUNDFOS INSTRUCTIONS
DosingPump.ir

DosingPump.ir

DMX 226
English (GB)
Installation and operating instructions ..........................................................4
Čeština (CZ)
Montážní a provozní návod .................................................................35
Deutsch (DE)
Montage- und Betriebsanleitung .............................................................62
Español (ES)
Instrucciones de instalación y funcionamiento ...................................................89
Français (FR)
Notice d'installation et de fonctionnement .....................................................117
Hrvatski (HR)
Montažne i pogonske upute ................................................................145
Magyar (HU)
Telepítési és üzemeltetési utasítás...........................................................172
Italiano (IT)
Istruzioni di installazione e funzionamento .....................................................199
Nederlands (NL)
Installatie- en bedieningsinstructies ..........................................................227
Polski (PL)
Instrukcja montażu i eksploatacji ............................................................254
Português (PT)
Instruções de instalação e funcionamento .....................................................282
Română (RO)
Instrucţiuni de instalare şi utilizare ...........................................................310
Srpski (RS)
Uputstvo za instalaciju i rad ................................................................338
Svenska (SE)
Monterings- och driftsinstruktion.............................................................365
Slovensko (SI)
Navodila za montažo in obratovanje .........................................................392
Türkçe (TR)
Montaj ve kullanım kılavuzu ................................................................419
中文 (CN)
安装和使用说明书 .......................................................................447
Appendix A............................................................................473
Appendix B............................................................................478
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Table of contents
DosingPump.ir

English (GB) Installation and operating instructions
Original installation and operating instructions
Table of contents
1. Original safety instructions ................ 0
2. General information ........................4
2.1 Introduction ..............................4
2.2 Applications ..............................4
3. Safety .................................5
3.1 Identification of safety instructions in this manual .......5
3.2 Qualification and training of personnel ..............5
3.3 Risks when safety instructions are not observed........5
3.4 Safety-conscious working......................5
3.5 Safety instructions for the operator/user .............5
3.6 Safety instructions for maintenance, inspection and
installation work ...........................5
3.7 Unauthorised modification and manufacture of spare
parts ..................................5
3.8 Improper operating methods ....................5
3.9 Safety of the system in the event of a failure in the
dosing system ............................5
4. Technical data ............................6
4.1 Identification..............................6
4.2 Pump models and pump types ..................7
4.3 Pump performance..........................8
4.4 Suction heights ............................9
4.5 Ambient and operating conditions................10
4.6 Dosing medium...........................10
4.7 Electrical data............................11
4.8 AR control unit ...........................11
4.9 Materials ...............................11
4.10 Weights ...............................12
4.11 Dimensional sketches .......................13
5. Transport and storage......................17
5.1 Delivery ...............................17
5.2 Intermediate storage........................17
5.3 Unpacking ..............................17
5.4 Return ................................17
6. Installation .............................18
6.1 Optimum installation ........................18
6.2 Installation tips ...........................19
6.3 Mounting...............................20
6.4 Hose / pipe lines ..........................20
6.5 Connecting the suction and discharge lines..........21
7. Electrical connections......................22
7.1 Versions with mains plug .....................22
7.2 Versions without mains plug ...................22
8. Commissioning ..........................22
8.1 Checks before start-up ......................22
8.2 Start-up ...............................22
9. Operation ..............................23
9.1 Description of the pump......................23
9.2 Switching on/off...........................24
9.3 Adjusting the dosing flow via the stroke length ........24
9.4 Stroke-length adjustment .....................24
9.5 Adjustment of stroke rate using a frequency converter . ..25
9.6 Using the AR control unit .....................25
10. Operation with other electronics ...............26
10.1 Electronic version stroke sensor.................26
10.2 Electronic diaphragm leakage sensor .............26
11. Integral relief valve ........................29
11.1 Function ...............................29
11.2 Permissible media .........................29
11.3 Connections.............................29
11.4 Setting of opening pressure ...................29
11.5 Venting ................................30
11.6 Fault finding chart .........................30
12. Maintenance ............................31
12.1 General notes............................31
12.2 Cleaning and maintenance intervals ..............31
12.3 Cleaning the suction and discharge valves ..........31
12.4 Maintenance of the relief valve .................32
12.5 Replacing the diaphragm .....................32
13. Fault finding chart ........................33
13.1 Dosing pump does not run.....................33
13.2 Dosing pump does not suck in. .................33
13.3 Dosing pump does not dose....................33
13.4 Dosing flow of the pump is inaccurate..............33
14. Dosing curves ...........................34
15. Disposing of the product ....................34
2. General information
Read this document before you install the product. Instal-
lation and operation must comply with local regulations
and accepted codes of good practice.
2.1 Introduction
These installation and operating instructions contain all the
information required for starting up and handling the DMX 226
dosing pump.
If you require further information or if any problems arise, which are
not described in detail in this manual, please contact Grundfos.
2.2 Applications
The DMX 226 pump is suitable for liquid, non-abrasive and non-
flammable media strictly in accordance with the instructions in this
manual.
Warning
Other applications or the operation of pumps in ambient
and operating conditions, which are not approved, are
considered improper and are not permitted. Grundfos ac-
cepts no liability for any damage resulting from incorrect
use.
Note
If a pump is explosion-proof, it is marked on the pump and
motor nameplates.
The declaration of conformity supplied with explosion-
proof pumps approved according to the 2014/34/EU direc-
tive replaces the declaration of conformity in this manual.
Warning
When using explosion-proof pumps in potentially explo-
sive areas according to the 2014/34/EU directive, the in-
structions "ATEX-approved pumps" as well as the instruc-
tions in this manual must be observed.
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3. Safety
This manual contains general instructions that must be observed
during installation, operation and maintenance of the pump. This
manual must therefore be read by the installation engineer and the
relevant qualified personnel/operators prior to installation and start-
up, and must be available at the installation location of the pump at
all times.
It is not only the general safety instructions given in this "Safety"
section that must be observed, but also all the specific safety
instructions given in other sections.
3.1 Identification of safety instructions in this manual
If the safety instructions or other advice in this manual are not
observed, it may result in personal injury or malfunction and
damage to the pump. The safety instructions and other advice are
identified by the following symbols:
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.
Information provided directly on the pump, e.g. labelling of fluid
connections, must be observed and must be maintained in a
readable condition at all times.
3.2 Qualification and training of personnel
The personnel responsible for the operation, maintenance,
inspection and installation must be appropriately qualified for these
tasks. Areas of responsibility, levels of authority and the supervision
of the personnel must be precisely defined by the operator.
If the personnel do not have the necessary knowledge, the
necessary training and instruction must be given. If necessary,
training can be performed by the manufacturer/supplier at the
request of the operator of the pump. It is the responsibility of the
operator to make sure that the contents of this manual are
understood by the personnel.
3.3 Risks when safety instructions are not observed
Non-observance of the safety instructions may have dangerous
consequences for the personnel, the environment and the pump. If
the safety instructions are not observed, all rights to claims for
damages may be lost.
Non-observance of the safety instructions may lead to the following
hazards:
• failure of important functions of the pump/system
• failure of specified methods for maintenance
• harm to humans from exposure to electrical, mechanical and
chemical influences
• damage to the environment from leakage of harmful
substances.
3.4 Safety-conscious working
The safety instructions in this manual, applicable national health
and safety regulations and any operator internal working, operating
and safety regulations must be observed.
3.5 Safety instructions for the operator/user
Hazardous hot or cold parts on the pump must be protected to
prevent accidental contact.
Leakages of dangerous substances (e.g. hot, toxic) must be
disposed of in a way that is not harmful to the personnel or the
environment. Legal regulations must be observed.
Damage caused by electrical energy must be prevented (for more
details, see for example the regulations of the VDE and the local
electricity supply company).
3.6 Safety instructions for maintenance, inspection and
installation work
The operator must ensure that all maintenance, inspection and
installation work is carried out by authorised and qualified
personnel, who have been adequately trained by reading this
manual.
All work on the pump should only be carried out when the pump is
stopped. The procedure described in this manual for stopping the
pump must be observed.
Pumps or pump units which are used for media that are harmful to
health must be decontaminated.
All safety and protective equipment must be immediately restarted
or put into operation once work is complete.
Observe the points described in the initial start-up section prior to
subsequent start-up.
Warning
Electrical connections must only be carried out by quali-
fied personnel!
The pump housing must only be opened by personnel au-
thorised by Grundfos!
3.7 Unauthorised modification and manufacture of
spare parts
Modification or changes to the pump are only permitted following
agreement with the manufacturer. Original spare parts and
accessories authorised by the manufacturer are safe to use. Using
other parts can result in liability for any resulting consequences.
3.8 Improper operating methods
The operational safety of the supplied pump is only ensured if it is
used in accordance with section Technical data. The specified limit
values must under no circumstances be exceeded.
Related information
4.1.1 Nameplate
3.9 Safety of the system in the event of a failure in the
dosing system
DMX 226 dosing pumps are designed according to the latest
technologies and are carefully manufactured and tested. However,
a failure may occur in the dosing system. Systems in which dosing
pumps are installed must be designed in such a way that the safety
of the entire system is still ensured following a failure of the dosing
pump. Provide the relevant monitoring and control functions for this.
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4. Technical data
4.1 Identification
4.1.1 Nameplate
Made in Germany 943795758098SSSSSSSS
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
PN: XXXXXXXX SN: XXXXXXXXX Type:XXX
XXXX,XX l/h, XXX,X bar, 50 Hz
XXXX,XX l/h, XXX,X bar, 60 Hz
XXXX,XX l/h, XXX,X bar,100 Hz
XXXXX XX X XXXXXXX
XX X XXXX XXXXXX XX PXX XXXX
UK importer: Grundfos Pumps ltd. Grovebury Road Buzzard. LU7 4TL
UK importer: Grundfos Pumps ltd. Grovebury Road Buzzard. LU7 4TL
943795758098SSSSSSSS
Grundfos Water Treatment GmbH – Reetzstr. 85 – D-76327 Pfinztal
Made in Germany
1
2
3
4
6
8
9
5
7
TM080167
Pos. Description
1 Type designation
2 Product number
3 Serial number
4 Pump performance by frequency
5 Marks of approval
6 ATEX designation
7 Country of origin
8 Pump model
9 Production code (year and week)
4.1.2 Type key
The type key is used to identify the precise pump and is not used
for configuration purposes.
Type
DMX132-10D B-PVC/V/C-X-E1U3U3XEMAG
Nominal dosing capacity [l/h]
DMX132-10D B-PVC/V/C-X-E1U3U3XEMAG
Max. pressure [bar]
DMX132-10D B-PVC/V/C-X-E1U3U3XEMAG
10D Pumps marked with a "D" after the pressure value are dou-
ble-head pumps.
Control variant
DMX132-10D B-PVC/V/C-X-E1U3U3XEMAG
B Standard (manual control)
S1 Stroke counter NAMUR, NC output
AR*AR control unit, pump-mounted
AW*AR control unit, wall-mounted
D3 Servomotor, 1AC 115-230 V, 50/60 Hz, 4-20 mA control
(without manual operation)
D4 Servomotor, 24 VDC, 4-20 mA control (without manual op-
eration)
*Only for pumps ≤ 0.37 kW
Dosing head variant
DMX132-10D B-PVC/V/C-X-E1U3U3XEMAG
PP Polypropylene
PV Polyvinylidene fluoride (PVDF)
SS Stainless steel, 1.4571 (EN 10027-2), 316Ti (AISI)
PVC Polyvinyl chloride
PPL PP with Diaphragm Leakage Detection (DLD)
PVL PV with Diaphragm Leakage Detection (DLD)
SSL SS with Diaphragm Leakage Detection (DLD)
PVCL PVC with Diaphragm Leakage Detection (DLD)
PVCR PVC with integrated PRV
PVR PV with integrated PRV
Gasket material
DMX132-10D B-PVC/V/C-X-E1U3U3XEMAG
E EPDM
V FKM
T PTFE
Valve ball material
DMX132-10D B-PVC/V/C-X-E1U3U3XEMAG
G Glass (from DN 32)
T PTFE
SS Stainless steel, 1.4401 (EN 10027-2), 316 (AISI)
C Ceramic (up to DN 20)
Terminal box position (also AR control or VFD position)
DMX132-10D B-PVC/V/C-X-E1U3U3XEMAG
X Opposite side of dosing head (3 o'clock)
D Towards dosing head (9 o'clock)
S Towards adjusting knob (6 o'clock)
R Opposite side of adjusting knob (12 o'clock)
Supply voltage
DMX132-10D B-PVC/V/C-X-E1U3U3XEMAG
E3AC 230/400 V, 50/60 Hz, 440-480 V, 60 Hz (motors <
0.75 kW)
G1AC 230 V, 50/60 Hz (motors ≤ 0.09 kW)
1AC 230 V, 50 Hz (motors 0.18 - 0.37 kW)
H1AC 115 V, 50/60 Hz (motors ≤ 0.09 kW)
1AC 115 V, 60 Hz (motors 0.18 - 0.37 kW)
F Without motor, NEMA flange
0 Without motor, IEC flange
4 3AC 230/400 V, 50 Hz (EX motors)
5 3AC 220/380 V, 60 Hz (EX motors)
K 3AC 500 V, 50 Hz
L 3AC 240/415 V, 50 Hz
P 3AC 240/415 V, 60 Hz
N 3AC 255/440 V, 60 Hz
M 3AC 400/690 V, 50 Hz (standard in power plants)
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Valve type (inlet/outlet)
DMX132-10D B-PVC/V/C-X-E1U3U3XEMAG
1 Standard valves, not spring-loaded
3Spring-loaded inlet valve (0.05 bar) and outlet valve (0.8
bar)
4Spring-loaded outlet valve (0.8 bar), inlet valve not spring-
loaded
5 For abrasive media
Hydraulic connections (first = outlet, second = inlet)
DMX132-10D B-PVC/V/C-X-E1U3U3XEMAG
U3 G 5/4, for hoses with internal diameter 19 or 20 mm and for
pipes with external diameter 25 mm
U7 G 5/8, for hoses 0.17" × 1/4", 1/4" × 3/8", 3/8" × 1/2" (PVC,
PP, PVDF)
A1 G 5/4, for pipes with internal thread Rp 3/4 (SS)
A8 Flange DN 32, for pipes with internal thread 1 1/4 NPT
(PVC, PP, PVDF)
B5 Flange DN 32, for pipes with external diameter 40 mm (PP,
PVDF)
A2 G 2, for pipes with internal thread Rp 1 1/4 (SS)
A3 G 5/4, for pipes with internal thread 3/4 NPT (SS)
A7 G 5/4, for pipes with external thread 3/4 NPT (PVC, PVDF)
A4 G 2, for pipes with internal thread 1 1/4 NPT (SS)
K G 2, for pipes with external diameter 40 mm (PVC)
Mains plug (only 1AC motors)
DMX132-10D B-PVC/V/C-X-E1U3U3XEMAG
X No plug
F EU (Schuko)
B USA, Canada
I Australia, New Zealand, Taiwan
E Switzerland
Motor variant and certification
DMX132-10D B-PVC/V/C-X-E1U3U3XEMAG
EM Standard motor (without certificates)
E0 Motor with PTC for thermal protection (without certificates)
E1 EX motor, type EX II 2G EEx e II T3 (without certificates)
E2 EX motor, type EX II 2GD EEx de IIC T4, without PTC
(without certificates)
E5 EX motor, type EX II 2GD EEx de IIC T4, with PTC (without
certificates)
FA VFD (variable frequency drive) (without certificates)
FB VFD with I/O extension board (without certificates)
FC VFD with internal Profibus (without certificates)
MP Standard motor (with certificates)
K0 Motor with PTC for thermal protection (with certificates)
K1 EX motor, type EX II 2G EEx e II T3 (with certificates)
K2 EX motor, type EX II 2GD EEx de IIC T4, without PTC (with
certificates)
K5 EX motor, type EX II 2GD EEx de IIC T4, with PTC (with
certificates)
Pump housing material
DMX132-10D B-PVC/V/C-X-E1U3U3XEMAG
A Aluminium
Pump design
DMX132-10D B-PVC/V/C-X-E1U3U3XEMAG
G Grundfos
N Neutral
4.2 Pump models and pump types
The pump nameplate shows various data of the pump like the type
designation and the pump model. For an explanation of the
nameplate see section Nameplate.
The pump type is the left part of the type designation and consists
of the type abbreviation, the nominal dosing capacity and the
maximum counterpressure. For an explanation of the type
designation see section Type key.
Pump
model Pump type Dosing
head size
Stroke
volume
[ml]
Motor
power
[kW]
DMX 226M
DMX 24-8 1 13.8
0.18
DMX 37-5 2 22
DMX 52-8 1 13.8
DMX 60-3 3 36
DMX 82-5 2 22
DMX 100-8 1 13.8
DMX 130-3 3 36
DMX 142-8 1 13.8
DMX 160-5 2 22
DMX 224-5 2 22
DMX 255-3 3 36
DMX 380-3 3 36
DMX 226L
DMX 67-10 1 18.5
0.37*
DMX 95-8 2 27.8
DMX 132-10 1 18.5
DMX 152-6 3 44.6
DMX 190-10 1 18.5
DMX 199-8 2 27.8
DMX 249-3 4 73
DMX 280-8 2 27.8
DMX 315-3 4 73
DMX 321-6 3 44.6
DMX 460-6 3 44.6
DMX 525-3 4 73
DMX 765-3 4 73
*With PTC thermistor: 0.55 kW.
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4.3 Pump performance
4.3.1 Accuracy
• Dosing flow fluctuation: ± 1.5 % within the control range 1:10.
• Linearity deviation: ± 4 % of the full-scale value. Adjustment from max. to min. stroke length, within the control range 1:5.
Applies to:
• water as dosing medium
• fully deaerated dosing head
• standard pump version.
4.3.2 Performance
Applies to:
• maximum counterpressure
• water as dosing medium
• flooded suction 0.5 mWC
• fully deaerated dosing head
Pump type
50 Hz 60 Hz 100 Hz
Q*Max. stroke
rate
p max.**
Q*Max. stroke
rate
p max.**
Q*Max. stroke
rate p max.**
3 AC 1 AC 3 AC 1 AC
[l/h] [n/min] [bar] [bar] [l/h] [n/min] [bar] [bar] [l/h] [n/min] [bar]
DMX 24-8 24 29 8 8 28 34.8 8 8 48 58 8
DMX 37-5 37 29 5 5 45 34.8 5 5 75 58 5
DMX 52-8 52 63 8 8 62 75.6 8 8 104 126 8
DMX 60-3 60 29 3 3 72 34.8 3 3 120 58 3
DMX 67-10 67 57 10 10 80 68.4 10 10 134 114 10
DMX 82-5 82 63 5 5 98 75.6 5 5 164 126 5
DMX 95-8 95 57 8 8 114 68.4 8 8 190 114 8
DMX 100-8 100 120 8 8 120 144 8 8 - - -
DMX 130-3 130 63 3 3 156 75.6 3 3 260 126 3
DMX 132-10 132 120 10 10 158 144 10 10 - - -
DMX 142-8 142 168 8 8 - - - - - - -
DMX 152-6 152 57 6 6 182 68.4 6 6 304 114 6
DMX 160-5 160 120 5 5 192 144 5 5 - - -
DMX 190-10 190 175 10 8 - - - - - - -
DMX 199-8 199 120 8 8 239 144 8 8 - - -
DMX 224-5 224 168 5 5 - - - - - - -
DMX 249-3 249 57 3 3 299 68.4 3 3 498 114 3
DMX 255-3 255 120 3 3 306 144 3 3 - - -
DMX 280-8 280 175 8 6 - - - - - - -
DMX 315-3 315 72 3 3 378 86.4 3 3 630 144 3
DMX 321-6 321 120 6 4 385 144 6 - - - -
DMX 380-3 380 168 3 3 - - - - - - -
DMX 460-6 460 175 6 3.5 - - - - - - -
DMX 525-3 525 120 3 3 630 144 3 3 - - -
DMX 765-3 765 175 3 - - - - - - - -
*Dosing capacity per dosing head; double the capacity for double-head pumps.
** Dosing capacity per dosing head; double the capacity for double-head pumps.
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4.4 Suction heights
4.4.1 Media with a viscosity similar to water
Applies to:
• counterpressure of 1.5 to 3 bar
• non-degassing and non-abrasive media
• temperature of 20 °C
• stroke length 100 %
• standard pump version.
Pump type
50 Hz 60 Hz 100 Hz Max. suction line
length
Suction
height*Suction lift ** Suction height*Suction lift ** Suction height*Suction lift **
[mWC] [mWC] [mWC] [mWC] [mWC] [mWC] [m]
DMX 24-8 3 1 2.5 1 2.5 1 4
DMX 37-5 3 1 2.5 1 2 1 3
DMX 52-8 3 1 2.5 1 2.5 1 4
DMX 60-3 2 1 2 1 1.5 1 3
DMX 67-10 3 1 2.5 1 2.5 1 4
DMX 82-5 3 1 2.5 1 2 1 3
DMX 95-8 3 1 2.5 1 2 1 3
DMX 100-8 3 1 2.5 1 - - 4
DMX 130-3 2 1 2 1 1.5 1 3
DMX 132-10 3 1 2.5 1 - - 4
DMX 142-8 3 1 - - - - 4
DMX 152-6 2 1 2 1 1.5 1 3
DMX 160-5 3 1 2.5 1 - - 3
DMX 190-10 3 1 - - - - 4
DMX 199-8 3 1 2.5 1 - - 3
DMX 224-5 3 1 - - - - 3
DMX 249-3 1.5 1 1 0.5 1 0.5 2
DMX 255-3 2 1 2 1 - - 3
DMX 280-8 3 1 - - - - 3
DMX 315-3 1.5 1 1 0.5 - - 2
DMX 321-6 2 1 2 1 - - 3
DMX 380-3 2 1 - - - - 3
DMX 460-6 2 1 - - - - 3
DMX 525-3 1 0.5 1 0.5 - - 2
DMX 765-3 0 0 - - - - 2
*Suction line and dosing head filled (continuous operation).
With stronger restoring spring, the values for dosing head size 1 are increased by 2 metres, and for dosing head sizes 2 and 3 by 1 metre.
** Suction line and dosing head not filled, but dosing head and valves moistened (start-up).
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4.4.2 Suction heights for media with maximum permissible
viscosity
Applies to:
• Newtonian liquids
• non-degassing and non-abrasive media
• temperature of 20 °C
• standard pump version.
Pump type Maximum viscosity Suction height
[m Pas] [mWC]
DMX 24-8 1000 1
DMX 37-5 600 1
DMX 52-8 700 1
DMX 60-3 500 0
DMX 67-10 700 1
DMX 82-5 500 1
DMX 95-8 500 1
DMX 100-8 400 1
DMX 130-3 400 0
DMX 132-10 400 1
DMX 142-8 200 0
DMX 152-6 400 0
DMX 160-5 200 0
DMX 190-10 200 0
DMX 199-8 200 0
DMX 224-5 150 0
DMX 249-3 100 0
DMX 255-3 100 0
DMX 280-8 150 0
DMX 315-3 100 0
DMX 321-6 100 0
DMX 380-3 50 0
DMX 460-6 50 0
DMX 525-3 50 0
DMX 765-3 10 0
4.5 Ambient and operating conditions
• Permissible ambient temperature: 0 °C to +40 °C.
• Permissible storage temperature: -20 °C to +50 °C.
• Permissible air humidity: max. relative humidity (non-
condensing): 70 % at +40 °C, 90 % at +35 °C.
Caution
The installation site must be under cover!
Ensure that the enclosure class of motor and pump are
not affected by the atmospheric conditions.
Pumps with electronics are only suitable for indoor use!
Do not install outdoors!
Warning
Risk of hot surfaces!
Pumps with AC motors may become hot.
Allow a minimum space of 100 mm above the fan cover!
• Sound pressure level: ± 55 dB(A), testing according to DIN
45635-01-KL3
• Minimum counterpressure: 1 bar at the pump discharge valve.
Pay attention to the pressure losses along the way to the
injection point inclusively.
Pumps with AR control unit only
Maximum permissible mains impedance: 0.084 + j 0.084 Ω (testing
according to EN 61000-3-11).
4.6 Dosing medium
Caution
In the event of questions regarding the material resistance
and suitability of the pump for specific dosing media,
please contact Grundfos.
The dosing medium must have the following basic characteristics:
• liquid
• non-abrasive
• non-flammable.
4.6.1 Permissible media temperature
Dosing head material Temperature range
p < 10 bar
PVC 0 °C to +40 °C
Stainless steel*-10 °C to +70 °C
PP 0 °C to +40 °C
PVDF -10 °C to +60 °C
+70 °C at 9 bar
*For SIP/CIP applications (not with ATEX): A temperature of 145 °C at a
counterpressure of max. 2 bar is permitted for a short period (15 minutes).
Caution Observe the freezing and boiling points of the dosing me-
dium!
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4.7 Electrical data
4.7.1 Enclosure class
The enclosure class depends on the motor variant selected, see
motor nameplate.
The specified enclosure class can only be ensured if the power
supply cable is connected with the same degree of protection.
Pumps with electronics: The enclosure class is only met if the
sockets are protected! The data regarding the enclosure class
applies to pumps with correctly inserted plugs or screwed-on caps.
4.7.2 Motor
Version: see motor and pump nameplates.
4.8 AR control unit
Functions of pumps with electronics:
• "Continuous operation" button for function test and dosing head
deaeration
• memory function (stores a maximum of 65,000 pulses)
• two-stage tank-empty signal (e.g. via Grundfos tank empty
sensor)
• stroke signal/pre-empty signal (adjustable), e.g. as a feedback
to the control room
• dosing controller function (only with sensor - optional)
• diaphragm leakage detection (only with sensor - optional)
• access-code-protected settings
• remote on/off
• hall sensor
• operating hours counter
• motor monitoring.
Operating modes:
• manual
Stroke frequency: manually adjustable between zero and
maximum
• contact signal control
Multiplier (1:n) and divisor (n:1)
• current signal control 0-20 mA / 4-20 mA
Adjustment of stroke frequency proportional to the current
signal.
Weighting of current input.
4.8.1 Inputs and outputs
Inputs
Contact signal Maximum load: 12 V, 5 mA
Current 0-20 mA Maximum load: 22 Ω
Remote on/off Maximum load: 12 V, 5 mA
Two-stage tank-empty signal Maximum load: 12 V, 5 mA
Dosing controller and diaphragm leakage sensor
Outputs
Current 0-20 mA Maximum load: 350 Ω
Error signal Maximum ohmic load: 50 VDC / 75 VAC, 0.5 A
Stroke signal Contact time/stroke: 200 ms
Pre-empty signal Maximum ohmic load: 50 VDC / 75 VAC, 0.5 A
AR control unit factory settings
• Inputs and outputs: NO (normally open)
or
• inputs and outputs: NC (normally closed).
4.9 Materials
Pump
• Pump housing: Al 226
• Diaphragm flanges: GG 25
• Stroke-length adjustment knob: ABS.
AR control unit enclosure
• Upper part of enclosure: PPO blend
• Lower part of enclosure: aluminium.
Optoelectronic diaphragm sensor
• Housing: ABS.
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4.10 Weights
Single pump
Approx. weight [kg]
Double pump
Approx. weight [kg]
Dosing head material Dosing head material
PVC Stainless steel PVC Stainless steel
DMX 24-8 15 21 DMX 24-8D 24 36
DMX 37-5 15 21 DMX 37-5D 24 36
DMX 52-8 15 21 DMX 52-8D 24 36
DMX 60-3 15 21 DMX 60-3D 24 36
DMX 67-10 21 30 DMX 67-10D 30 48
DMX 82-5 15 21 DMX 82-5D 24 36
DMX 95-8 21 30 DMX 95-8D 30 48
DMX 100-8 15 21 DMX 100-8D 24 36
DMX 130-3 15 21 DMX 130-3D 24 36
DMX 132-10 21 30 DMX 132-10D 30 48
DMX 142-8 15 21 DMX 142-8D 24 36
DMX 152-6 21 30 DMX 152-6D 30 48
DMX 160-5 15 21 DMX 160-5D 24 36
DMX 190-8 21 30 DMX 190-8D 30 48
DMX 190-10 21 30 DMX 190-10D 30 48
DMX 199-8 21 30 DMX 199-8D 30 48
DMX 224-5 15 21 DMX 224-5D 24 36
DMX 249-3 21 30 DMX 249-3D 30 48
DMX 255-3 15 21 DMX 255-3D 24 36
DMX 280-6 21 30 DMX 280-6D 30 48
DMX 280-8 21 30 DMX 280-8D 30 48
DMX 315-3 21 30 DMX 315-3D 30 48
DMX 321-4 21 30 DMX 321-4D 30 48
DMX 321-6 21 30 DMX 321-6D 30 48
DMX 380-3 15 21 DMX 380-3D 24 36
DMX 460-3,5 21 30 DMX 460-3,5D 30 48
DMX 460-6 21 30 DMX 460-6D 30 48
DMX 525-3 21 30 DMX 525-3D 30 48
DMX 765-3 21 30 DMX 765-3D 30 48
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4.11 Dimensional sketches
4.11.1 Dimensions of DMX 226M single-head pumps
A
D1
E
S1
K F
M
C2
B1
C
N
J
D
D2
B
TM073717
All dimensions are in mm, except for the thread designations.
Pump type A B C C2 D D1 D2 F B1 K M N J
All 302 310 97.5 24.5 190 G1 1/4 9 152 85.5 104.5 180 118 16
Pump type E S1
DMX 24-8 178 4
DMX 37-5 188 9
DMX 52-8 178 4
DMX 60-3 208 19
DMX 82-5 188 9
DMX 100-8 178 4
DMX 130-3 208 19
DMX 142-8 178 4
DMX 160-5 188 9
DMX 224-5 188 9
DMX 255-3 208 19
DMX 380-3 208 19
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4.11.2 Dimensions of DMX 226M double-head pumps
A
E
S1
K F
C2
D2
M
K
D1
B1
J
C
N
B
D
TM073723
All dimensions are in mm, except for the thread designations.
Pump type A B C C2 D D1 D2 F B1 K M N J
All 425 310 97.5 24.5 190 G1 1/4 9 152 85.5 104.5 180 118 16
Pump type E S1
DMX 24-8D 178 4
DMX 37-5D 188 9
DMX 52-8D 178 4
DMX 60-3D 208 19
DMX 82-5D 188 9
DMX 100-8D 178 4
DMX 130-3D 208 19
DMX 142-8D 178 4
DMX 160-5D 188 9
DMX 224-5D 188 9
DMX 255-3D 208 19
DMX 380-3D 208 19
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4.11.3 Dimensions of DMX 226L single-head pumps
A
E
D1
K
S
F
M
N
B1
B
C
D
D2
C2
TM073716
All dimensions are in mm, except for the thread designations.
Pump type C C2 D D2 F B1 M N
All 136 25 222 9 140 123 190 160
Pump type A B D1 E K S
DMX 95-8 366 372 G1 1/4 188 80 29
DMX 132-10 366 372 G1 1/4 178 80 34
DMX 152-6 381 372 G1 1/4 208 83 19
DMX 190-8 366 372 G1 1/4 178 80 34
DMX 190-10 366 372 G1 1/4 178 80 34
DMX 199-8 366 372 G1 1/4 188 80 29
DMX 249-3 395 390 G2 240 92 3
DMX 280-6 366 372 G1 1/4 188 80 29
DMX 280-8 366 372 G1 1/4 188 80 29
DMX 315-3 395 390 G2 240 92 3
DMX 321-4 381 372 G1 1/4 208 83 19
DMX 321-6 381 372 G1 1/4 208 83 19
DMX 460-3,5 381 372 G1 1/4 208 83 19
DMX 460-6 381 372 G1 1/4 208 83 19
DMX 525-3 395 390 G2 240 92 3
DMX 765-3 395 390 G2 240 92 3
DMX 67-10 366 372 G1 1/4 178 80 34
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4.11.4 Dimensions of DMX 226L double-head pumps
A
ES
KF
M
D2 C2
K
D
B
B1
N
C
D1
TM073722
All dimensions are in mm, except for the thread designations.
Pump type C C2 D D2 F B1 M N
All 136 25 222 9 208 123 258 160
Pump type A B D1 E K S
DMX 67-10D 440 372 G1 1/4 178 80 34
DMX 95-8D 444 372 G1 1/4 188 80 29
DMX 132-10D 440 372 G1 1/4 178 80 34
DMX 152-6D 453 372 G1 1/4 208 83 19
DMX 190-8D 440 372 G1 1/4 178 80 34
DMX 190-10D 440 372 G1 1/4 178 80 34
DMX 199-8D 444 372 G1 1/4 188 80 29
DMX 249-3D 498 390 G2 240 92 3
DMX 280-6D 444 372 G1 1/4 188 80 29
DMX 280-8D 444 372 G1 1/4 188 80 29
DMX 315-3D 498 390 G2 240 92 3
DMX 321-4D 453 372 G1 1/4 208 83 19
DMX 321-6D 453 372 G1 1/4 208 83 19
DMX 460-3,5D 453 372 G1 1/4 208 83 19
DMX 460-6D 453 372 G1 1/4 208 83 19
DMX 525-3D 498 390 G2 240 92 3
DMX 765-3D 498 390 G2 240 92 3
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5. Transport and storage
Caution
Do not throw or drop the pump.
Store the pump in a dry and cool place.
Store the pump in upright position so that the gear grease
cannot leak out.
Do not use the protective packaging as transport packag-
ing.
Observe the permissible storage temperature!
5.1 Delivery
The DMX 226 dosing pumps are supplied in different packaging,
depending on pump type and the overall delivery. For transport and
intermediate storage, use the correct packaging to protect the pump
against damage.
5.2 Intermediate storage
• Permissible storage temperature: -20 °C to +50 °C.
• Permissible air humidity: max. relative humidity: 92 % (non-
condensing).
5.3 Unpacking
Retain the packaging for future storage or return, or dispose of the
packaging in accordance with local regulations.
5.4 Return
Return the pump in its original packaging or equivalent.
The pump must be thoroughly cleaned before it is returned or
stored. It is essential that there are no traces of toxic or hazardous
media remaining on the pump.
Caution
Grundfos accepts no liability for damage caused by incor-
rect transportation or missing or unsuitable packaging of
the pump!
Before returning the pump to Grundfos for service, the safety
declaration at the end of these instructions must be filled in by
authorised personnel and attached to the pump in a visible position.
Caution
If a pump has been used for a medium which is injurious
to health or toxic, the pump will be classified as contami-
nated.
If Grundfos is requested to service the pump, it must be ensured
that the pump is free from substances that can be injurious to health
or toxic. If the pump has been used for such substances, the pump
must be cleaned before it is returned.
If proper cleaning is not possible, all relevant information about the
chemical must be provided.
If the above is not fulfilled, Grundfos can refuse to accept the pump
for service. Possible costs of returning the pump are paid by the
customer.
The safety declaration can be found at the end of these instructions.
Caution The replacement of the supply cable must be carried out
by an authorised Grundfos service workshop.
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6. Installation
6.1 Optimum installation
1i
2i
3i
4i 5i
6i
7i
9i
10i
8i
max. 1m
TM036296
Example of optimum installation
Pos. Components
1i Dosing tank
2i Electric agitator
3i Extraction device
4i Suction pulsation damper
5i Dosing pump
6i Relief valve
7i Pressure-loading valve
8i Pulsation damper
9i Measuring glass
10i Injection unit
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6.2 Installation tips
• For easy deaeration of the dosing head, install a ball valve (11i)
with bypass line (back to the dosing tank) immediately after the
discharge valve.
• In the case of long discharge lines, install a non-return valve
(12i) in the discharge line.
11i 12i
TM036297
Installation with ball valve and non-return valve
• When installing the suction line, observe the following:
- Keep the suction line as short as possible. Prevent it from
becoming tangled.
- If necessary, use swept bends instead of elbows.
- Always route the suction line up towards the suction valve.
- Avoid loops which may cause air bubbles.
TM036298
Installation of suction line
• For non-degassing media with a viscosity similar to water, the
pump can be mounted on the tank (observe the maximum
suction height).
• Flooded suction preferred.
• For media with a tendency to sedimentation, install the suction
line with filter (13i) so that the suction valve remains a few
millimetres above the possible level of sedimentation.
p
10i
6i
13i
TM036299
Tank installation
• Note for suction-side installation: In dosing systems with a
suction line longer than 1 metre, depending on the dosing flow,
it may be necessary to install a properly sized pulsation damper
(4i) immediately before the pump suction valve.
4i
TM036300
Installation with suction-side pulsation damper
• Note for discharge-side installation: To protect the piping, use a
pulsation damper (8i) for rigid piping longer than 3 metres and
tubing longer than 5 metres.
8i
TM036301
Installation with discharge-side pulsation damper
• For degassing and viscous media: flooded suction.
• To protect the dosing pump and the discharge line against
excessive pressure build-up, install a relief valve (6i) in the
discharge line.
6i 10i
p
TM036302
Installation with relief valve
With open outflow of the dosing medium or a counterpressure
below 1 bar
• Install a pressure-loading valve (7i) immediately before the
outlet or the injection unit.
A positive pressure difference of at least 1 bar must be ensured
between the counterpressure at the injection point and the pressure
of the dosing medium at the pump suction valve.
• If this cannot be ensured, install a pressure-loading valve (7i) in
the discharge line.
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7i
p ≥ 1bar
TM077840
Installation with pressure-loading valve
• To avoid the siphon effect, install a pressure-loading valve (7i) in
the discharge line and, if necessary, a solenoid valve (14i) in the
suction line.
14i
p1
p2
p2 - p1 1 bar
>
_
TM036304
Installation to avoid the siphon effect
Warning
Risk of hot surfaces!
Pumps with AC motors may become hot.
Allow a minimum space of 100 mm to the fan cover!
6.3 Mounting
• Mount the pump horizontally on the tank or on a console using
four M8 screws.
• Replace the screw plugs by the deaeration screws supplied with
the pump.
Caution Gently tighten the screws in order not to damage the plas-
tic enclosure!
6.4 Hose / pipe lines
6.4.1 General
Warning
To protect the dosing pump against excessive pressure
build-up, install a relief valve in the discharge line.
Only use the prescribed line types!
All lines must be free from strain!
Avoid loops and buckles in the hoses!
Keep the suction line as short as possible to avoid cavita-
tion!
If necessary, use swept bends instead of elbows.
Observe the chemical manufacturer's safety instructions
when handling chemicals!
Make sure that the pump is suitable for the actual dosing
medium!
The flow must run in the opposite direction to gravity!
Caution
The resistance of the parts that come into contact with the
media depends on the media, media temperature and op-
erating pressure. Ensure that parts in contact with the me-
dia are chemically resistant to the dosing medium under
operating conditions!
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