END ARMATUREN DG2D AX Series Installation instructions
END-Armaturen GmbH & Co. KG
Oberbecksener Str. 78 · D-32547 Bad Oeynhausen · Telefon (05731) 7900-0 · Telefax (05731) 7900-199 · http://www.end.de
Original Operating Manual
Pressure Actuated Valves
DG2D, DA2D, DL2D, DM2D, DF2D, DFZ,
DG3D, DA3D, DL3D, DM3D, DF3D
.../AX version acc.to European Directve 2014/34/EU (ATEX)
for the use in explosive atmosphere
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© by END-Armaturen GmbH & Co. KG
All rights reserved. No part of this publication may be copied or published by means of printing,
photocopying, microfilm or otherwise without prior written consent of
END-Armaturen GmbH & Co.KG. This restriction also applies to the corresponding drawings.
END-Armaturen GmbH & Co. KG has the right to change parts of the valves at any time without
prior or direct notice to the client. The contents of this publication are subject to change without
notice.
This publication has been written with great care. However, END-Armaturen GmbH & Co. KG
cannot be held responsible, either for any errors occurirng in this publication or for their consequences.
The products are specified by the statements in this documentation; no assurance of the properties is given.
END-Armaturen GmbH & Co. KG
Oberbecksener Straße 78
D-32547 Bad Oeynhausen
Telefon: 05731 / 7901 - 0
Telefax: 05731 / 7901 - 999
Internet: http://www.end.de
E-Mail: [email protected]
Edition: 10/2019
Impressum
DG - 10/2019 http://www.end.de 3
Contents
Contents
1 Foreword 5
2 General advice 6
2.1 Validity 6
2.2 Inward monitoring 6
2.3 Complaints 7
2.4 Guarantee 7
2.5 Symbols and their signfication 7
3 Safety advice 8
3.1. Personal protection 8
3.1.1. Safety advice for mounting 8
3.1.3 Safety advice for adjustment and starting 9
3.2 Device safety 10
4 Device description 11
4.1 Device description 11
4.2 Device variants 12
4.3 Name-plate 13
4.4 Explosion proof identification 14
4.5 Description of function 14
4.5.1 Description of function: Pressure actuated valve (2/2-way) 14
4.5.1.1 Normally close with the flow direction 15
4.5.1.2 Normally close against the flow direction 16
4.5.1.3 Normally open, close against the flow direction 16
4.5.1.4 Double acting 16
4.5.2 Description of function: Pressure actuated valve (3/2-way) 17
4.5.2.1 Split function 17
4.5.2.2 Mixing function 17
4.6 Description of options function 18
4.6.1 Pilot valve (Option) 18
4.6.2 Position indicator (Option) 18
4.6.3 Optical position indicator (Option) 18
4.6.4 Stroke stop (Option) 18
4.6.5 Electrical position indicator (Option) 18
4.6.6 Manual override (Option) 18
5 Mounting / Disassembly 19
5.1 Electrical installation 19
5.2 Mounting of a valve with threaded connection 20
5.3 Mounting of a valve with welded connection 20
5.3.1 Protection of the sealings by using Heat Absorbing Paste 20
5.3.2 Protection of the sealings by disassembling the valve top 21
5.3.2.1 Disassembly of the valve top 21
5.3.2.2 Mounting of the valve top 22
5.4 Mounting of the valve (flanged connection) 23
5.5 Connection of the pilot medium 24
5.6. Mounting of a pilot valve (Option) 25
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Contents
5.6.1 Pneumatical installation of a pilot valve 25
5.6.2 Electrical installation of a pilot valve 25
5.7 Disassembly 26
5.7.1 Mechanical disassembly 26
6 Starting 27
7 Failure 27
7.1 Failure causes 27
8 Maintenance / Cleaning 28
8.1 Maintenance 28
8.2 Cleaning 28
9 Declaration of conformity 29
10. Annex 30
10.1 Conditions in the potentially explosive area 30
10.2 Equipment groups acc. to EC-directive 2014/34/EU, Annex I 30
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1 Foreword
Dear customer,
Dear assembler / user,
these operation and installation manuals are intented to give you the knowledge which is neces-
sary for you to be able to carry out the mounting and adjustment of an pressure actuated valve
DG2D rapidly and correctly.
Please read these instructions carefully and pay particular attention to the advice and warning
notes.
Only instructed and qualyfied mechanician should mount, adjust or maintain the pressure acting
valves.
The pressure acting valves will be deliver in several versions relative to
- pilot pressure and pressure range
- operations
- material
- connection type and connection size.
There are also several options available.
With accessories
- it can switch the pilot media
- it can indicate the position of the piston
- it can happen a manual override
- it can stop the stroke
The field of use of this valve is predominantly
- in food and drink industry
- in chemical installtions
- in ventilation and blower construction
- in heating and air-conditioning technology
- in industrial fittings
- in water treatment etc.
If you have any questions in relation to the pressure acting valves DG2D, we shall be pleased to
answer them.
The telephone number will be found on the inside cover of these operation and installtion manual.
Yours
END-Armaturen GmbH & Co. KG
Foreword
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2 General advice
2.1 Validity
These mounting and operating manual is valid for the explosion proofed versions of the pressrue
actuated vales:
DG2Dxxxxxxx/AX..
DA2Dxxxxxxx/AX..
DL2Dxxxxxxx/AX..
DM2Dxxxxxxx/AX..
DF2Dxxxxxxx/AX..
DFZxxxxxxx/AX..
DG3Dxxxxxxx/AX..
DA3Dxxxxxxx/AX..
DL3Dxxxxxxx/AX..
DM3Dxxxxxxx/AX..
DF3Dxxxxxxx/AX..
and their variants:
- with X as a perface to the type
- and a appendage to the type (e.g. /A05)
Advice
The products descript in this documentation in the conditions of our delivery are partly completed
machinery according to annex 2 paragraph g of the directive 2006/42/EC on machinery, which must not
be put into service until the final machinery into which it is to be incorporated has been declared in
conformity with the provisions of the Directive 2006/42/EC on machinery, where appropriate.
Please take notice to the Declaration of incorporation and the assembly instruction.
2.2 Inward monitoring
Please check
- directly after delivery the valve for any transport damages and deficiencies
- with reference to the accompanying delivery note the number of parts.
Do not leave any parts in the package.
General advice
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2.3 Complaints
Claims for replacement or goods which relate to transport damage can only be considered valid if
the parcel service / forwarder has notified without delay.
In case of returns (because of transport damage / repair), please make a damage protocol and
send the parts back to END-Armaturen, if possible in the original packaging,
In case of a return, please mention the following:
• Name and address of the consignee
• Order-/ article-number
• Description of the defect.
2.4 Guarantee
For our pressure actuated valve we give a guarantee period in accordance with the sales contract.
The end of the normal duration of live of the wearing parts represents no defect.
The warrently and guarantee rules of END-Armaturen GmbH & Co. KG are applicable.
2.5 Symbols and their signfication
Paragraphs which are identified with this symbol contain very important advices; this also includes
advices for averting health risks. Oserve these paragraphs without fail!
Paragraphs which are identified with this symbol contain very important advices; this also includes
how to avoid damage to property. Observe these paragraphs without fail!
This symbol indicates paragraphs which contain comments/advice or tips.
This bullet identifies the description of actions which you should carry out.
Symbols and their signification
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3 Safety advice
Depending on the technical circumstances and the time under and at which the valve is mounted,
adjusted and commissioned, you must in each case take into account particular safety aspects!
If, for example, the valve works in an operational chemical plant, the potential hazards of commis-
sioning have another dimension from that when this is only being carried out for test purposes an
a „dry“ part of the plant in the assembly room.
Since we do not know the circumstances at the time of the mounting/adjustment/commissioning,
you may find advice on hazards in the following descriptions which are not relevant to you .
Please observe (only) the advice which applies to your situation!
3.1. Personal protection
3.1.1. Safety advice for mounting
We wish to point out expressly that the mounting, the electrical installation and the adjustment
of the valves and the accessories must be carried out only by trained specialist personnel having
mechanical and electrical knowledge!
Switch off all the devices / machines / plant affected by mounting or repair.
If appropriate, isolate the devices / machines / plant from the mains.
Check (for example in chemical plants) whether the switching off of devices / machines / plant
will cause potential danger.
If appropriate, in the event of a fault in the valve (in a plant which is in operation) inform the
shift forman / safety engineer or the works manager without delay about the fault, in order, for
example, to avoid an outflow / overflow of chemicals or the discharge of gases in good time by
means of suitable measures!
Before mounting or repair, remove the pressure from pneumatic / hydraulic devices / machines
/ plant.
Emty the conduit from medium.
If necessary, set up warning signs in order to prevent the inadvertent starting up of the devices /
machines / plant.
Observe the respective relevant professional safety and accident prevention regulations when
carrying out the mounting / repair work.
Check the correct functioning of the safety equipment (for example the emergency push off but-
tons/ safety valves, etc)!
Safety Advice
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Safety Advice
3.1.3 Safety advice for adjustment and starting
As a result of the starting (pneumatic or by hand) of a pressure actuated valve the flow of gases,
steam, liquids, etc. may be enabled or interrupted!
Satisfy yourself that, as the result of the starting or the test adjustments of the valve, no potential
hazards will be produced for the personnel or the environment!
If necessary, set up warning signs in order to prevent the inadvertent starting up or shutting down
of the devices / machines / plant.
By ending mounting check the correct function and the tightness of the valve.
Check the right position and correct function of mounted pilot valves and limit switches
Through suitable measures, prevent actuating links being trapped by moving actuating ele-
ments!
Check the right function of all saftey devices (for example emergency off push buttons / safety
valves, etc. )!
Carry out the starting and the adjustments only in accordance with the instructions discribed in
this documentation!
When adjustments are being carried out on an opened and switch on (operational) limit switches
or pilot valves, there is the risk that live parts(230V AC~) can be touched!
Therefore the adjustment must be carried out only by the electrican or a person having adequate
training, who is aware of the potential hazard.
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Safety Advice
3.2 Device safety
The pressure actuated valve
- is a quality product which is produced in accordance with the recognized industrial
regulations.
- left the manufacturer`s work in a perfect safety condition!
In order to maintain this condition, as installer / user you must carry out your task in accoedance
with the discritions in these instructions, technially correctly and with the greatest possible pre-
cision!
We assume, as trained specialist you are having mechanical and electrical knowledge !
The valves must be used only for a purpose corresponding to its construction!
The valves must be used within the values specified in the technical data.
Satisfy yourself that, as the result of the mounting, the starting or as a result of the test adjusments
on the valves, no potential hazards will be produced for devices / machines / plant!
Open the valve only to such an extant as described in this documentation!
Do not loose the locking ring of the pilot cylinder or don`t try to disassemble the pilot cylinder.
Do not mount the valve, start the valve or carry out any adjusments on it if the valve, the supply
lines or the part of the plant on which it is flange- mounted is damaged !
By ending mounting check the correct function and the tightness of the valve and check the cor-
rect function of the pilot valve and limit switches.
This manual suits for next models
23
Table of contents
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