Grundfos DMH 25 Series - 1 Symbols Used in this Document; 2 Operating Pumps in Potentially Explosive Atmospheres; Table of Contents; Pump Configuration

English (GB)
5
English (GB) Installation and operating instructions
Original installation and operating instructions.
CONTENTS
Page
1. Symbols used in this document
2. Operating pumps in potentially explosive
atmospheres
This manual describes additional conditions or special
considerations affecting the operation of pumps in potentially
explosive atmospheres.
3. Device designs
3.1 Identification
Fig. 1 Example of ATEX nameplate
3.2 Pump configuration
Grundfos produces pumps in accordance with Directive 94/9/EC.
These pumps correspond to the specifications in the table below.
Permissible pump configuration
3.2.1 Diaphragm leakage detection
DMH pumps meeting the requirements of Directive 94/9/EC can
optionally be fitted with an approved diaphragm leakage detection
with an Ex i pressure gauge meeting the requirements of
Directive 94/9/EC.
1. Symbols used in this document
5
2. Operating pumps in potentially explosive
atmospheres
5
3. Device designs
5
3.1 Identification
5
3.2 Pump configuration
5
4. Operating conditions
7
4.1 Environmental conditions
7
4.2 Dosing medium
7
5. Installation
7
5.1 Earthing
7
5.2 Overflow valve
7
5.3 Suction line
7
5.4 Dosing of combustible media
8
6. Commissioning
8
7. Operation
8
7.1 Safety instructions for operating the explosion-proof
pump
8
8. Maintenance
9
8.1 Cleaning
9
8.2 Lubrication
9
8.3 Accessories / peripherals
9
8.4 Tools and maintenance work
9
9. Declaration of conformity / certificates
9
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
In addition to these instructions, observe the
general installation and operating instructions
supplied with the pump.
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.
Caution
This manual is only valid together with the
installation and operating instructions for the
pump. Both documents should be used.
Caution
Installation, maintenance and repairs must only
be carried out by suitably qualified and
authorised personnel.
Caution
The motor and accessories for the pumps, e.g.
the metrology-based monitoring, must at
minimum meet the requirements of
Directive 94/9/EC as applicable to pumps.
Caution
The original configuration of the pump must not
be modified.
TM03 7006 2011
Pos. Description
1 Type designation
2 Model
3 Maximum capacity [l/h]
6 Product number
8 Year and week code
10 Maximum pressure [bar]
11 Serial number
12 ATEX designation
13 Manufacturer
Caution
Pumps which are not configured in accordance
with the table cannot be used in potentially
explosive atmospheres.
Feature Description
Front plate Metallic
Electronics No electronics
Caution
Pumps with other types of diaphragm leakage
detection cannot be used in potentially explosive
atmospheres.