Grundfos VGA-113 User manual

Vaccuperm VGA-113
Gas dosing regulator
Installation and operating instructions
Vaccuperm VGA-113
Installation and operating instructions
Other languages
http://net.grundfos.com/qr/i/QR98028175
Handling chlorine
Installation and operating instructions
(all available languages)
http://net.grundfos.com/qr/i/96681297
GRUNDFOS INSTRUCTIONS

Vaccuperm VGA-113
English (GB)
Installation and operating instructions ..........................................................4
Deutsch (DE)
Montage- und Betriebsanleitung .............................................................19
Español (ES)
Instrucciones de instalación y funcionamiento ...................................................34
Français (FR)
Notice d'installation et de fonctionnement ......................................................49
中文 (CN)
安装和使用说明书 ........................................................................64
China RoHS ............................................................................79
Declaration of conformity .................................................................80
Declaration of conformity .................................................................81
Operating manual EAC ...................................................................82
3
Table of contents

English (GB) Installation and operating instructions
Original installation and operating instructions
Table of contents
1. General information ........................4
1.1 Hazard statements..........................4
1.2 Notes ..................................4
1.3 Target group..............................5
1.4 Safety of the system in the event of product failure ......5
1.5 Working with chemicals .......................5
2. Product introduction........................5
2.1 Intended use .............................5
2.2 Product overview...........................5
2.3 Installation examples ........................6
2.4 Operating principle of a VGA-113 dosing regulator ......7
3. Identification .............................8
3.1 Nameplate...............................8
3.2 Type key ................................8
4. Delivery and handling .......................8
4.1 Handling ................................8
4.2 Unpacking ...............................8
5. Installation ..............................9
5.1 Mechanical installation .......................9
5.2 Electrical installation ........................10
6. Startup................................11
6.1 Checks before startup .......................11
7. Operation ..............................11
7.1 Starting the chlorine gas dosing system ............11
7.2 Reading the dosing flow .....................11
7.3 Setting the dosing flow manually with the VGA-113-110
or VGA-113-311 dosing regulator ................11
7.4 Setting the dosing flow automatically with the
VGA-113-311 dosing regulator..................12
7.5 Emergency operation .......................12
7.6 Stopping the chlorine gas dosing system ...........12
8. Fault finding ............................13
8.1 Maximum dosing flow is not reached..............13
8.2 Ball in the measuring glass of the flowmeter is caught . ..13
8.3 Water is in the measuring glass of the flowmeter ......13
8.4 Servomotor does not run .....................13
8.5 Servomotor rotates in the wrong direction ...........13
8.6 In versions with differential-pressure regulator the
dosing capacity varies despite constant operating
conditions ..............................13
8.7 In versions without differential-pressure regulator the
dosing capacity varies despite constant operating
conditions ..............................13
9. Maintenance ............................14
9.1 Maintenance schedule ......................14
9.2 Cleaning the measuring glass of the flowmeter .......14
9.3 Cleaning the rate vale .......................14
10. Decommissioning ........................15
11. Technical data ...........................15
11.1 General technical data ......................15
11.2 Dimensions .............................16
12. Service kits for VGA-113 ....................17
13. Disposing of the product ....................18
14. Document quality feedback ..................18
1. General information
Read this document before you install the product.
Installation and operation must comply with local
regulations and accepted codes of good practice.
1.1 Hazard statements
The symbols and hazard statements below may appear in Grundfos
installation and operating instructions, safety instructions and
service instructions.
DANGER
Indicates a hazardous situation which, if not avoided, will
result in death or serious personal injury.
WARNING
Indicates a hazardous situation which, if not avoided,
could result in death or serious personal injury.
CAUTION
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate personal injury.
The hazard statements are structured in the following way:
SIGNAL WORD
Description of the hazard
Consequence of ignoring the warning
• Action to avoid the hazard.
1.2 Notes
The symbols and notes below may appear in Grundfos installation
and operating instructions, safety instructions and service
instructions.
Observe these instructions for explosion-proof products.
A blue or grey circle with a white graphical symbol
indicates that an action must be taken.
A red or grey circle with a diagonal bar, possibly with a
black graphical symbol, indicates that an action must not
be taken or must be stopped.
If these instructions are not observed, it may result in
malfunction or damage to the equipment.
Tips and advice that make the work easier.
4
English (GB)

1.3 Target group
These installation and operating instructions are intended for
authorised and trained operating and service experts.
1.3.1 Qualification and training
The persons responsible for the installation, startup, operation and
maintenance must be appropriately qualified for these tasks. Areas
of responsibility, levels of authority and the supervision of the
persons must be precisely defined by the operating company. If
necessary, the persons must be trained appropriately.
1.3.1.1 Obligations of the operating company
• Meet the installation requirements specified by the
manufacturer.
• Observe the local safety regulations.
• Instruct the operating persons.
• Provide the stipulated safety equipment and personal protective
equipment.
• Arrange regular maintenance.
1.3.1.2 Obligations of the user
• Read this manual thoroughly before operating the product.
• Observe the recognised health and safety regulations as well as
the accident prevention regulations.
• Wear appropriate protective equipment in accordance with
national health and safety regulations when working at the
system and handling chemicals.
1.4 Safety of the system in the event of product failure
If the product fails, the safety of the overall system must be
ensured. Use appropriate monitoring and control functions.
WARNING
Toxic material
Death or serious personal injury
‐Make sure that leaking chemicals do not cause
personal injury or damage to property.
‐Make sure that leak monitoring solutions and drip trays
are installed.
1.5 Working with chemicals
WARNING
Toxic material
Death or serious personal injury
‐Wear personal protective equipment when handling
chemicals.
‐Observe the chemical manufacturer's safety data
sheets (SDS) and safety instructions of the used
chemicals.
‐Observe the local regulations.
Make sure that parts in contact with the chemicals are
resistant to the chemicals under the specific operating
conditions.
When working with chlorine, see also the guidelines
"Handling chlorine" on Grundfos Product Center: http://
net.grundfos.com/qr/i/96681297.
2. Product introduction
2.1 Intended use
The VGA-113 dosing regulator is exclusively designed for dosing
chlorine gas into a vacuum line.
2.1.1 Improper use
Operational safety is only guaranteed, if the product is used
correctly. All operating methods conflicting with correct usage are
not permitted, and lead to the expiry of all liability claims.
WARNING
Toxic material
Death or serious personal injury
‐Unauthorised structural modifications to the product
may result in serious damage to the equipment and
personal injury.
‐Do not open, modify, bridge, remove, bypass or
disable components, especially safety equipment.
2.2 Product overview
B
A
C
D
TM082355
VGA 113-110 dosing regulator without differential-pressure
regulator
B
A
C
D
TM082356
VGA-113-311 dosing regulator with differential-pressure regulator
and manual capacity adjustment
B
A
C
D
E
TM082357
VGA-113-391 dosing regulator with servomotor
Pos. Description
A Flowmeter
B Adjusting knob
C Inlet, vacuum connection
D Outlet, vacuum connection to injector
E Servomotor
5
English (GB)

2.3 Installation examples
Low-budget manual chlorine extraction from one or more cylinders
Vaccuperm manual chlorine gas dosing systems with VGA-111 vacuum regulators and a VGA-113-110 dosing regulator.
4
31
5 6
2
TM075191
Pos. Component
1 VGA-111 vacuum regulator
2 Chlorine gas adsorption filter
3 189 change-over device
4 VGA-113-110 dosing regulator
5 VGB injector
6 Injection unit
6
English (GB)

Manual or automatic chlorine extraction from two banks of cylinders
Vaccuperm manual or automatic chlorine gas dosing systems with VGA-111 vacuum regulators and a VGA-113-311 manual dosing regulator
or a VGA-113-391 automatic dosing regulator.
9 7 44a 10
6
131a
28
11
5
TM075190
Pos. Component
1 VGA-111 vacuum regulator with heated liquid trap (pressure inlet right)
1a VGA-111 vacuum regulator with heated liquid trap (pressure inlet left)
2 Chlorine gas adsorption filter
3 189 change-over device
4 VGA-113-311 manual dosing regulator
4a VGA-113-391 automatic dosing regulator
5 VGA injector
6 Injection unit
7 Conex DIA-G gas warning system
8 Gas sensor
9 Horn and flashlight
10 Header line for chlorine cylinders
11 CR booster pump
2.4 Operating principle of a VGA-113 dosing regulator
The chlorine gas volume flow is adjusted by the dosing regulator.
This can be done manually or automatically with a servomotor. VGA
113-311 and VGA 113-391 dosing regulators have a differential-
pressure regulator that reduces and regulates the injector vacuum
to a constant level to secure a constant and linear gas flow. The
VGA 113-110 dosing regulator operates without a differential-
pressure regulator. It achieves a constant and linear chlorine gas
flow under sonic flow conditions. Dosing regulators without a
differential-pressure regulator operate with VGB injectors. VGB
injectors have a higher performance but require larger motive water
flow and higher motive water pressure. Dosing regulators without a
differential-pressure regulator do not comply with DIN 19606.
Related information
2.3 Installation examples
7
English (GB)

3. Identification
3.1 Nameplate
TM1040190
Pos. Description
1 Type designation
2 Product number
3 Serial number
4 Medium, Capacity
5 Voltage, Frequency
6 Factory code and production code (year and week)
7 Country of origin
8 Marks of approval
3.2 Type key
Type
VGA-113 -25/11-M0,Y-G,C3
VGA-113 Dosing regulator
Capacity
VGA-113-25/11-M0,Y-G,C3
25 1-25 g/h
40 2-40 g/h
100 5-100 g/h
250 10-250 g/h
500 25-500 g/h
1000 50-1000 g/h
2000 100-2000 g/h
3000 150-3000 g/h
4000 400-4000 g/h
Vacuum connection, inlet/outlet
VGA-113-25/11-M0,Y-G,C3
11 PE hose 8/11 mm
Adjustment
VGA-113-25/11-M0,Y-G,C3
M0 Manual
D3 Automatic, 110-240 V, 50/60 Hz, 4-20 mA
D4 Automatic, 24 VDC, 4-20 mA
D8 Automatic, 230 V, 50/60 Hz, potentiometer 1 k Ohm
D9 Automatic, 115 V, 50/60 Hz, potentiometer 1 k Ohm
Differential-pressure regulator
VGA-113-25/11-M0,Y-G,C3
NWithout
Y With
Logo
VGA-113-25/11-M0,Y-G,C3
GGrundfos
Product certificate
VGA-113-25/11-M0,Y-G,C3
C3 Certificate 3.1 (EN 10204)
4. Delivery and handling
4.1 Handling
Observe when transporting and storing the VGA-113 dosing
regulator:
• Always store the product in a cool, dry place.
• No foreign matter should get into lines and valves.
• Transport the product carefully.
• Do not lift the product by flexible lines or cables.
4.2 Unpacking
Observe when unpacking the VGA-113 dosing regulator:
• Observe all handling instructions.
• Open the packaging carefully.
• Check the dosing regulator for transport damage.
• Install as soon as possible after unpacking.
8
English (GB)

5. Installation
WARNING
Toxic material
Death or serious personal injury
‐Installation must be carried out by authorised and
trained experts.
‐Wear personal protective equipment when handling
chemicals.
‐Observe the local regulations.
5.1 Mechanical installation
5.1.1 Installation location
• Choose a mounting place that is free from vibrations.
• Observe the permissible ambient temperature.
• The dosing regulator can be installed outside the chlorine room.
5.1.2 Selection of vacuum lines
The vacuum needed for the transport of chlorine gas is built up by the injector and maintained by vacuum lines. Rigid PVC pipes or flexible PE
hoses are used as vacuum lines.
The following tables show the recommended diameter of the required vacuum lines, depending on line length and dosing quantity.
Vacuum lines between vacuum regulator and dosing regulator
Max. length of the
vacuum line
[m]
Dosing quantity
[g/h]
40 100 250 500 1000 2000 4000
0 DN 8 DN 8 DN 8 DN 8 DN 8 DN 8 DN 10
10 DN 8 DN 8 DN 8 DN 8 DN 8 DN 8 DN 10
20 DN 8 DN 8 DN 8 DN 8 DN 8 DN 10 DN 15
30 DN 8 DN 8 DN 8 DN 8 DN 8 DN 10 DN 15
40 DN 8 DN 8 DN 8 DN 8 DN 8 DN 15 DN 15
50 DN 8 DN 8 DN 8 DN 8 DN 10 DN 15 DN 15
75 DN 8 DN 8 DN 8 DN 8 DN 10 DN 15 DN 15
100 DN 8 DN 8 DN 8 DN 8 DN 10 DN 15 DN 20
Vacuum lines between dosing regulator and injector
Max. length of the
vacuum line
[m]
Dosing quantity
[g/h]
40 100 250 500 1000 2000 4000
0 DN 8 DN 8 DN 8 DN 8 DN 8 DN 8 DN 8
10 DN 8 DN 8 DN 8 DN 8 DN 8 DN 8 DN 8
20 DN 8 DN 8 DN 8 DN 8 DN 8 DN 8 DN 10
30 DN 8 DN 8 DN 8 DN 8 DN 8 DN 8 DN 10
40 DN 8 DN 8 DN 8 DN 8 DN 8 DN 8 DN 10
50 DN 8 DN 8 DN 8 DN 8 DN 8 DN 8 DN 15
75 DN 8 DN 8 DN 8 DN 8 DN 8 DN 8 DN 15
100 DN 8 DN 8 DN 8 DN 8 DN 8 DN 8 DN 15
9
English (GB)

5.1.3 Connecting the VGA-113 dosing regulator to the vacuum
lines
WARNING
Toxic material
Death or serious personal injury
‐Before starting to connect, make sure that the valves
of all chlorine containers are closed.
Only tighten the union nuts of the vacuum connections by
hand, do not use any tools.
Make sure that the vacuum connections are clean and
dry.
The dosing regulator can be installed outside the chlorine room.
1. Connect the dosing regulator to the line from the vacuum
regulator (1).
2. Connect the line (3) from the dosing regulator to the injector.
2
VGA-111
1
3
TM082630
Vacuum connections
Pos. Description
1 Vacuum line from the vacuum regulator
2 Overpressure line
3 Vacuum line to the injector
Related information
2.2 Product overview
5.2 Electrical installation
WARNING
Electric shock
Death or serious personal injury
‐Before making any electrical connections, switch off
the power supply and make sure that it cannot be
accidentally switched on.
‐All electrical connections must be carried out by a
qualified electrician in accordance with local
regulations.
‐All electrical connections must be carried out in
accordance with the wiring diagram.
Before connecting the mains cable, make sure that the
voltage and frequency specified on the nameplate
correspond to the local power supply.
An incorrect supply voltage may destroy the device.
Route the input, output and power supply cables in
separate ducts.
Read the separate supplier manual of the respective
servomotor. Find the QR code on the nameplate of the
servomotor.
5.2.1 Servomotor wiring diagrams
4(0) - 20 mA
250V AC / 30V DC
56 57
55
54
52
51
-
++
L N
L1 NPE
-
TM082658
Servomotor with mA input and output
N
open
min.
PE
max.
close
N
2 3
C
4518 19 20
< 50 V
start
slider
end
< 50 V
1
AB
SL (max.) SR (min.)
TM040953
Servomotor with reversing potentiometer
Pos. Description
1 N Neutral
2 Phase Supply voltage input (direction open/max.)
3 Phase Supply voltage input (direction close/min).
4 Feedback max. end position
5 Feedback min. end position
PE (earth)
18 Start
19 Slider
20 End
A Motor control
B Reversing potentiometer
C Limit switch
10
English (GB)

6. Startup
WARNING
Toxic material
Death or serious personal injury
‐Startup must be carried out by authorised and trained
experts.
‐Observe the material safety data sheets (SDS) of the
handled chemicals.
‐Wear personal protective equipment when handling
chemicals.
For startup, all components of the entire system must be
ready for operation.
Observe the manuals of the system and all other
components.
6.1 Checks before startup
Before startup:
• Check the electrical connections.
• Check the mechanical installation.
• Check the tightness of the entire system.
6.1.1 Checking the chlorine solution lines and the injector
Observe the installation and operating instructions of the
injector.
6.1.2 Checking the tightness of the pressure side
Observe the installation and operating instructions of the
vacuum regulator.
6.1.3 Checking the tightness of the vacuum side
Make sure that the pressure side of the chlorine gas
dosing system is tight.
Make sure that the injector is ready for operation.
1. Close the connecting valves of all drums or cylinders.
2. Start the injector.
3. Slowly open the adjusting valve at the dosing regulator.
The vacuum lines are evacuated.
After about 10 minutes, depending on the length of the vacuum
lines, the dosing regulator indicates no flow.
If the dosing regulator indicates a flow, the complete system must
be checked for leaks.
Checking the system for leaks
1. Disconnect the vacuum lines between the vacuum regulators
and the dosing regulator one after the other.
2. Close each disconnected line tightly.
If the dosing regulator stops indicating a flow, the last disconnected
component is leaky.
Repair or exchange the leaky component and check the tightness
again.
7. Operation
WARNING
Toxic material
Death or serious personal injury
‐Wear personal protective equipment when handling
chemicals.
The dosing flow is adjusted with the adjusting knob at the
rate valve of the dosing regulator.
In versions with optional servomotor, the dosing flow can
also be adjusted via an external controller.
7.1 Starting the chlorine gas dosing system
1. Close the rate valve at the dosing regulator using the adjusting
knob.
2. Open the shut-off valve at the injection unit.
3. Open the motive water valves.
4. Switch on the booster pump.
5. Open the chlorine container valve.
6. Slowly open the rate valve of the dosing regulator using the
adjusting knob, until the ball in the measuring glass of the
flowmeter indicates the desired flow.
If the dosing flow is adjusted via an external
controller, an adjustment can also be made at the
servomotor by switching the mode from Auto to Manu
at the servomotor
See the manual of the external controller.
7.2 Reading the dosing flow
The dosing flow can be read at the top of the ball in the measuring
glass of the flowmeter.
g/h
lbs/day
TM040717
Reading the dosing flow
The scale of the measuring glass is adjusted to a gas
temperature of 20 °C.
If the temperature differs extremely, the dosing flow may
differ from the shown value.
7.3 Setting the dosing flow manually with the
VGA-113-110 or VGA-113-311 dosing regulator
12
TM040754
Setting the dosing flow
1. To increase the dosing flow, turn the adjusting knob very slowly
counter-clockwise.
Do not turn the adjusting knob any further, if the
maximum dosing flow is reached. There is no locking.
2. To reduce the dosing flow, turn the adjusting knob very slowly
clockwise.
11
English (GB)

7.4 Setting the dosing flow automatically with the
VGA-113-311 dosing regulator
The VGA-113-311 dosing regulator is checked and preadjusted in
the factory with the servomotor. It can be readjusted on site.
• Servomotor type Tensor Basic (4-20 mA version): adjust the end
positions and the respective mA setpoints.
• Servomotor type Nano (potentiometer version): adjust the limit
switches.
Read the enclosed supplier manual of the servomotor
used.
7.5 Emergency operation
Make sure that the limit switch stops the servomotor
before the mechanical stop at the adjusting spindle is
reached.
The servomotor torque can damage the coupling and
mechanical parts.
7.5.1 Disconnecting the servomotor for emergency operation
If the servomotor is damaged, or for maintenance tasks, the
servomotor can be disconnected from the rate valve of the dosing
regulator. The automatic dosing regulator can then be operated
manually.
1
2
TM040752
Disconnecting the servomotor from the rate valve
1. Switch off the power supply of the servomotor.
2. Slide the coupling (1) upwards.
3. Push the retention pin (2) through the coupling, until the
coupling cannot move down any longer.
The servomotor is disconnected from the rate valve. Now the
dosing flow can be adjusted manually.
7.5.2 Reconnecting the servomotor
3
2
TM040753
Reconnecting the servomotor to the rate valve
1. Push back the retention pin (2).
2. The coupling slides down.
3. Turn the adjusting knob (3), until the coupling snaps in.
The servomotor is connected again.
7.6 Stopping the chlorine gas dosing system
Do not stop the chlorine gas dosing system by closing the
rate valve.
The rate valve is an adjusting valve, not a shut-off valve.
7.6.1 Stopping the chlorine gas dosing system in case of
emergency
WARNING
Toxic material
Death or serious personal injury
‐If gas escapes, immediately leave the room.
‐Put on personal protective equipment.
‐Start countermeasures according to local safety
regulations.
1. Immediately close the chlorine container valves.
2. Let the system run until all parts are evacuated.
3. Stop the chlorine gas dosing system.
7.6.2 Stopping the chlorine gas dosing system for a short time
1. Close the rate valve at the dosing regulator using the adjusting
knob.
2. Stop the booster pump.
3. Close the motive-water valves.
4. Close the shut-off valve at the injection unit.
7.6.3 Shutting down the chlorine gas dosing system for a long
time
1. Close all chlorine container valves.
2. Let the system run, until the flowmeter of the dosing regulator
shows no flow.
3. Close the rate valve at the dosing regulator using the adjusting
knob.
4. Switch off the booster pump.
5. Close the motive-water valves.
6. Close the shut-off valve at the injection unit.
12
English (GB)

8. Fault finding
8.1 Maximum dosing flow is not reached
Cause Remedy
Insufficient injector vacuum.
The injector used is not
suitable.
Motive water pressure is too
low.
Backpressure is too high.
The dirt trap before the injector
is soiled.
• The injector vacuum for
versions with differential-
pressure regulator must be at
least 2 mH2O.
• The injector vacuum for
versions without differential-
pressure regulator must be at
least 5 mH2O.
• Make sure that a suitable
injector type is used.
• Check if the injector functions
properly. Observe the manual
of the injector.
• Make sure that the motive
water pressure is sufficient.
• Make sure that the
backpressure is suitable. See
specification.
• Check the dirt trap before the
injector. Clean it, if necessary.
Leakage in the vacuum line
between dosing regulator and
injector.
• Eliminate the leakage.
The vacuum line between
dosing regulator and injector is
too long or the diameter is too
small.
• For details on vacuum lines,
see section Selection of
vacuum lines.
Soiled vacuum line. • Replace the vacuum line.
Servomotor does not reach
maximum dosing capacity.
• Readjust the servomotor
and/or the external
controller. Observe the
manual of the servomotor.
Soiled filter at the pressure
connection of the vacuum
regulator.
• Clean or replace the filter.
Closed chlorine container
valve.
• Open the chlorine container
valve.
Empty chlorine container. • Replace the empty chlorine
container by a full one.
8.2 Ball in the measuring glass of the flowmeter is
caught
Cause Remedy
Soiled measuring glass or ball. • Clean the measuring glass
and the ball.
8.3 Water is in the measuring glass of the flowmeter
Cause Remedy
The diaphragm non-return
valve of the injector is
defective.
1. Repair the injector. Observe
the manual of the injector.
2. Disassemble the dosing
regulator, clean it and dry it
well.
3. Dry the vacuum line to the
injector, or replace it.
8.4 Servomotor does not run
Cause Remedy
Servomotor is switched to
manual operation.
• Switch servomotor to
automatic operation. See the
supplier manual of the
servomotor.
8.5 Servomotor rotates in the wrong direction
Cause Remedy
Servomotor is adjusted
incorrectly.
Controller is adjusted
incorrectly.
• Adjust the servomotor. See
the supplier manual of the
servomotor.
8.6 In versions with differential-pressure regulator the
dosing capacity varies despite constant operating
conditions
Cause Remedy
The spring in the differential-
pressure regulator is soiled.
• Clean the spring in the
differential-pressure regulator.
The spring in the differential-
pressure regulator is damaged.
• Replace the spring in the
differential-pressure regulator.
The diaphragm in the
differential-pressure regulator is
soiled.
• Clean the differential-pressure
regulator.
The diaphragm in the
differential-pressure regulator is
damaged.
• Replace the diaphragm in the
differential-pressure regulator.
8.7 In versions without differential-pressure regulator
the dosing capacity varies despite constant
operating conditions
Cause Remedy
At maximum capacity, the
injector vacuum is below 5
mH2O.
The injector used is not
suitable.
Motive water pressure is too
low.
Backpressure is too high.
The dirt trap before the injector
is soiled.
• Make sure that the injector
vacuum is at least 5 mH2O.
• Make sure that a suitable
injector type is used.
• Check if the injector functions
properly. Observe the manual
of the injector.
• Make sure that the motive
water pressure is sufficient.
• Make sure that the
backpressure is suitable. See
specification.
• Check the dirt trap before the
injector. Clean it, if necessary.
13
English (GB)

9. Maintenance
WARNING
Toxic material
Death or serious personal injury
‐Cleaning and maintenance must be carried out by
authorised and trained experts.
‐Observe the material safety data sheets (SDS) of the
handled chemicals.
‐Wear personal protective equipment when handling
chemicals.
‐Shut down the whole system before any work at the
system components and lines.
‐The system must be pressureless.
‐Separate the whole system from the power supply
before any work at the system components.
‐Safety installations, which have been disabled during
maintenance, must be enabled again immediately
after maintenance.
‐Tightly close inlet flanges and outlet flanges to prevent
humidity from getting in.
‐Check the tightness of the whole system before
recommissioning.
Observe the manuals of the system and all other
components.
9.1 Maintenance schedule
• Check the tightness of the whole system monthly.
• Check the electrical grounding of the whole system according to
local requirements.
• Check the VGA-113 dosing regulator at least every 12 months,
before start-up and in case of malfunction.
9.2 Cleaning the measuring glass of the flowmeter
C
B
A
TM082787
Dismantling the measuring glass of the flowmeter
Required tools and accessories:
• Hot water
• Soft brush
1. Unscrew the lower support (A+B).
2. Pull out the measuring glass (C).
3. Take off the plugs of the measuring glass and take out the ball.
4. Clean all parts with hot water, use a brush if necessary.
5. Replace damaged parts.
6. Dry all parts well.
Moist parts can cause corrosion.
Mount all parts in reverse sequence.
9.3 Cleaning the rate vale
A
C
D
E
F
G
TM082785
Required tools and accessories:
• Hot water
• Soft brush
• Cylindrical pin, approx. 6 mm
• PTFE grease from the service kit
Do not use Vaseline for lubrication of the O-ring.
For versions with servomotor, observe the manual of the
servomotor.
1. Version with servomotor: Unscrew the servomotor.
2. Unscrew the adjusting knob (C).
3. Unscrew the holding spindle (F).
4. Remove O-Ring and flat sealing (G) of the holding spindle.
Do not damage the sealing edge of the valve seat.
5. Push out the seat with the cylindrical pin.
6. Take off the cap (only manual version) and remove the locking
ring (A) of the adjusting knob.
7. Remove the O-rings (E) of the adjusting spindle (D).
8. Clean all parts with hot water, use a brush if necessary.
9. Replace damaged parts.
10. Dry all parts well.
Moist parts can cause corrosion.
14
English (GB)

11. Replace the O-rings of the spindle by new ones, slightly apply
PTFE grease to them.
Do not apply any grease to the groove of the spindle.
12. Replace the O-ring of the rate valve cartridge.
Mount all parts in reverse sequence.
10. Decommissioning
Seal the inlet and outlet connections of the dismantled
system components to avoid ingress of moisture.
For details on decommissioning, see the separate installation and
operating instructions of the Vaccuperm gas dosing system.
11. Technical data
DANGER
Toxic material
Death or serious personal injury
‐Observe the values stated in the technical data
section.
11.1 General technical data
Permissible medium Chlorine gas
Capacity Up to 4000 g/h
Adjustment ratio 1:20
Accuracy ± 4 %
Measuring device According to the floater principle, measuring
tube 70 mm
Material
• Enclosure: PVC
• Springs: alloy C-4, silver-coated
• Diaphragm: FEP
• Rate valve: PVC
• O-rings: FKM
Connections Vacuum connection: PE hose 8/11 mm
Weight Without servomotor: 0.9 kg
With servomotor: 3.1 kg
Servomotor data
• Supply voltage: 110-240 V, 50/60 Hz or
24 VDC
• Input/output signal: 4-20 mA
• Enclosure: IP65
• Actuating time (1-100 %): 90 s
• Power consumption: 15 VA
• Fault relay: potential-free, NC
Permissible vacuum
regulator VGA-111
15
English (GB)

11.2 Dimensions
I
A
H
B
M
M
G
J
C
D
E
F
TM074740
VGA-113-110, manual version
H
I
A
G
M
E
D
J
M
C
K
F
B
TM074741
VGA-113-311, manual version
I
H
G
L
A
M
MJ
E
D
C
K
F
B
TM074738
VGA-113-391, automatic version with servomotor
Type A B C D E F G H I J K L M
VGA-113-110 196 156 90 190 165 75 48.5 73 108 6 - - 8x11
VGA-113-311 196 188 217 178 95 64 44 119 172 7 138 - 8x11
VGA-113-391 407 221 251 293 95 65 70.5 119 172 7 148 307 8x11
16
English (GB)

12. Service kits for VGA-113
1.10
1.12
1.32
1.81
1.29
1.26
2.71
1.28
1.30 1.8
1.62
1.59
8.3
7.3
2.10
1.58
2.4
1.57
1.55
(1.54)
3000g
25/40/100g
TM082877
Drawing 1
1.10
1.32
1.30
1.62
1.59
8.3
7.3
1.57
2.4
1.58
1.54
1.55
1.55
2.10
TM082878
Drawing 2
Description Content Drawing Product number
Service kit for VGA-113 with differential-pressure regulator Gasket, vale seat, PTFE grease 1 91835974
Service kit for VGA-113 without differential-pressure
regulator Gasket, vale seat, PTFE grease 2 91835973
17
English (GB)

13. Disposing of the product
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.
The crossed-out wheelie bin symbol on
a product means that it must be
disposed of separately from household
waste. When a product marked with
this symbol reaches its end of life, take
it to a collection point designated by
the local waste disposal authorities.
The separate collection and recycling
of such products will help protect the
environment and human health.
See also end-of-life information at www.grundfos.com/product-
recycling.
14. Document quality feedback
To provide feedback about this document, scan the QR-code using
your phone’s camera or a QR code app.
Click here to submit your feedback
18
English (GB)

Declaration of conformity
GB: EU declaration of conformity
We, Grundfos, declare under our sole responsibility that the
products VGA-111, VGA-113, VGA-117, VGA-146, VGB-103,
VGS-141, VGS-143, VGS-145, VGS-147, VGS-148, to which the
declaration below relates, are in conformity with the Council
Directives listed below on the approximation of the laws of the EU
member states.
DE: EU-Konformitätserklärung
Wir, Grundfos, erklären in alleiniger Verantwortung, dass die
Produkte VGA-111, VGA-113, VGA-117, VGA-146, VGB-103,
VGS-141, VGS-143, VGS-145, VGS-147, VGS-148, auf die sich
diese Erklärung bezieht, mit den folgenden Richtlinien des Rates
zur Angleichung der Rechtsvorschriften der EU-Mitgliedsstaaten
übereinstimmen.
ES: Declaración de conformidad de la UE
Grundfos declara, bajo su exclusiva responsabilidad, que los
productos VGA-111, VGA-113, VGA-117, VGA-146, VGB-103,
VGS-141, VGS-143, VGS-145, VGS-147, VGS-148 a los que hace
referencia la siguiente declaración cumplen lo establecido por las
siguientes Directivas del Consejo sobre la aproximación de las
legislaciones de los Estados miembros de la UE.
FR: Déclaration de conformité UE
Nous, Grundfos, déclarons sous notre seule responsabilité, que les
produits VGA-111, VGA-113, VGA-117, VGA-146, VGB-103,
VGS-141, VGS-143, VGS-145, VGS-147, VGS-148, auxquels se
réfère cette déclaration, sont conformes aux Directives du Conseil
concernant le rapprochement des législations des États membres
UE relatives aux normes énoncées ci-dessous.
CN: 欧盟符合性声明
我们，格兰富，在我们的全权责任下声明，产品 VGA-111,
VGA-113, VGA-117, VGA-146, VGB-103, VGS-141, VGS-143,
VGS-145, VGS-147, VGS-148 系列，其制造和性能完全符合以下所
列欧盟委员会指令。
• Machinery Directive (2006/42/EC).
Standard used: EN ISO 12100:2010.
• Low Voltage Directive (2014/35/EU).
Standards used:
EN 60204-1:2018
EN 61010-1:2010*
• EMC Directive (2014/30/EU)*.
Standards used:
EN 55014-1:2017
EN 55014-2:2015
EN 61000-6-1:2019
EN 61000-6-3:2007 + A1:2011
• Other regulations applied:
DIN 19606:2010-09.
• RoHS Directives (2011/65/EU and 2015/863/EU).
Standard used: EN IEC 63000:2018
* Only valid for products with electrical components
This EU declaration of conformity is only valid when published as part of the Grundfos installation and operating instructions (publication
numbers 95714202, 95714224, 98028175, 95714246, 95714278, 95713929, 95714262, 95714296).
Bjerringbro, 01.March 2022
Jimm Feldborg
Head of PD IND
Grundfos Holding A/S
Poul Due Jensens Vej 7
8850 Bjerringbro, Denmark
Person authorised to compile technical file and empowered to sign the EU declaration of conformity.
80
Declaration of conformity

Declaration of conformity
UK declaration of conformity
We, Grundfos, declare under our sole responsibility that the
products to which the declaration below relates, are in conformity
with UK regulations, standards and specifications to which
conformity is declared, as listed below:
Valid for Grundfos products:
• VGA-111, -113, -117, -146
• VGB-103
• VGS-141, -143, -145, -147, -148
• Supply of Machinery (Safety) Regulations 2008
Standard used: EN ISO 12100:2010.
• Electrical Equipment (Safety) Regulations 2016.
Standards used:
EN 60204-1:2018
EN 61010-1:2010*.
• Electromagnetic Compatibility Regulations 2016*.
Standards used:
EN 55014-1:2017
EN 55014-2:2015
EN 61000-6-1:2019
EN 61000-6-3:2007 + A1:2011
• Other regulations applied:
DIN 19606:2010-09.
• The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2019
Standard used: EN IEC 63000:2018
* Only valid for products with electrical components.
This UK declaration of conformity is only valid when accompanying Grundfos instructions.
UK Importer: Grundfos Pumps ltd. Grovebury Road, Leighton Buzzard, LU7 4TL.
Bjerringbro, 01.March 2022
Jimm Feldborg
Head of PD IND
Grundfos Holding A/S
Poul Due Jensens Vej 7
8850 Bjerringbro, Denmark
Manufacturer and person empowered to sign the UK declaration of conformity.
10000107500
81
Declaration of conformity