
English (GB)
2
English (GB) Installation and operating instructions
Original installation and operating instructions
CONTENTS
Page
1. Of general interest
1.1 Structure of the documentation
The Grundfos vacuum regulator VGS-147 / VGS-148 is a state-
of-the-art solution, which complies with recognised safety
regulations.
Conformity with applicable standards, directives and laws has
been verified.
Nevertheless, certain risks which cannot be prevented by the
manufacturer are associated with the use of the system.
Purpose of this manual:
• Inform users of optimum use.
• Warn users of possible residual risks when using correctly and
identify measures that should be taken to avoid damage.
• Caution users against obvious misuse or inappropriate use
and inform them of the necessary care that must be taken
when operating the system.
1.2 About this manual
This manual contains the following standardised safety
instructions about possible residual risks:
Information about possible residual risks is provided:
• On warning signs displayed in the installation location.
• At the start of each section in this manual.
• Directly before any operating procedures that could involve
residual risks.
1.3 User/target groups
Users are persons who are responsible for operating and
monitoring the vacuum regulator VGS-147 / VGS-148 at the
installation location. The system may only be operated by trained
and qualified personnel. Personnel must have appropriate
technical knowledge and be familiar with the basic principles of
measuring and control technology.
1.3.1 Responsibilities of the users
The users’ responsibilities:
• Read this manual before operating the VGS-147 / VGS-148.
• Be trained by qualified personnel from Grundfos in the
operation of the system.
• Observe the recognised regulations governing safety in the
workplace and accident prevention.
• Wear appropriate protective clothing in accordance with
national regulations for the prevention of accidents when
operating the system and handling chemicals (German
GUV-V D05).
1. Of general interest 2
1.1 Structure of the documentation 2
1.2 About this manual 2
1.3 User/target groups 2
1.3.1 Responsibilities of the users 2
1.4 Responsibilities of the operator 3
1.5 Maintenance and service personnel 3
1.6 Correct usage 3
1.7 Inappropriate usage 3
2. Handling chlorine 3
2.1 Physical and chemical data 3
2.2 Safety advice for handling chlorine 4
2.2.1 Risks to health 4
2.2.2 Personal safety equipment 4
2.2.3 Rules of conduct 4
2.2.4 First aid in case of accidents 4
2.2.5 Transport and storage of chlorine 4
2.2.6 Pressure vessels and mountings 5
2.2.7 Chlorine extraction 6
2.3 Checking the tightness 6
2.3.1 Checking the chlorine solution lines and the diaphragm
non-return of the injector 6
2.3.2 Checking the tightness of the vacuum lines 6
2.3.3 Checking the tightness of pressure gas lines 6
2.4 Constructional requirements of chlorination plants 7
2.5 Principle function of the components 8
2.5.1 Vacuum regulator 8
2.5.2 Measuring tube 8
2.5.3 Rate valve 8
2.5.4 Differential pressure regulator (Option: VGA-117) 8
2.5.5 Vacuummeter (Option: VGA-117) 8
2.5.6 Injector 8
2.6 List of valid laws and regulations 9
2.7 Recommended diameter 10
2.7.1 Between vacuum regulator and dosing regulator 10
2.7.2 Between dosing regulator and injector 10
3. Technical Data 11
3.1 General Data 11
3.1.1 Pressure connection 11
3.1.2 Flow range 11
3.1.3 Admission pressure 11
3.1.4 Accessories (not including) 11
3.2 Dimensioned drawings 12
3.2.1 Vacuum regulator VGS-147 12
3.2.2 Vacuum regulator VGS-148 12
4. Installation 13
4.1 Transport and storage 13
4.2 Unpacking 13
4.3 Mounting 13
4.3.1 Requirements for mounting 13
4.3.2 Pressure line connection 13
4.3.3 Without connection set 13
4.3.4 Vacuum line connection 14
4.3.5 Overpressure line connection 14
5. Commissioning 14
5.1 Preparations for commissioning 14
5.1.1 Vacuum connections 14
5.1.2 Pressure line connection 14
5.1.3 Electrical connections 14
5.2 Checks before commissioning 15
5.2.1 Checking the tightness of pressure gas lines 15
5.2.2 Checking the tightness with nitrogen 15
5.2.3 Checking the tightness with ammonia 15
6. Operation 15
6.1 Function 15
6.2 Display Elements 15
6.3 Operating 15
6.4 Possible faults 16
7. Maintenance 16
8. Disposal 16
Warning
Prior to installation, read these installation and
operating instructions. Installation and operation
must comply with local regulations and accepted
codes of good practice.
Warning
If these safety instructions are not observed, it may
result in personal injury!
If these safety instructions are not observed, it may
result in malfunction or damage to the equipment!
Notes or instructions that make the job easier and
ensure safe operation.