Operating and mounting manual (translation)
EV / EVF
1.0 General Remarks
This operating manual includes instructions to assemble and operate the valve in the prescribed and
safe way. Additionally, the adeqaute operating instructions of each special solenoid drive must be considered.
Series MG... 220.000.038
Series MG...X 220.000.040
Series MG…Xme 220.000.039
If any difficulties appear that can not be solved by means of the operation instructions, further
information may be demanded from the manufacturer.
This operating manual is in accordance with the relevant valid EN safety standards and the valid
prescriptions and rules of the Federal Republic of Germany.
If the solenoids are used abroad of the FRG, the operator and/or the person who is responsible for the
plant concept must take care that the valid national rules are met. The manufacturer reserves the right
of any technical change and improvement. The use of these operating instructions suppose the
qualification of the user according to paragraph 2.3 “qualified staff”.
The operating staff must be trained in accordance with the operating instructions. The operating
manual must always be available at the location where used.
Operating and mounting manual (translation)
EV / EVF
Flange connection measures acc. to DIN EN 1092-2 / ANSI
Flange DN
Flange ANSI
PN TÜV-
Report-no.
15
(5N)
1/2
20
(7N)
3/4
25
(10N)
1
32
(12N)
1 1/4
40
(15N)
1 1/2
50
(20N)
2
Test
Pressure
(*) PT
5 EV..NÜ..92/93 25 S7/99 X X X O O O PT 16
10 EV..NÜ..92/93 40 S7/99 X X X O O - PT 25
25 EV..NÜ..92/93(#) 40 S7/99 X X X O O - PT 40
40 EV..NÜ..92/93 40 S7/99 X X X O - - PT 40
(*) Test pressure to perform leakage test "No FUNCTION TEST"
X Type test acc., O Acceptance test certificate 3.2 possible, - not available,
(#) For liquefied gas in its liquid form according to DIN 32725
Threaded connection dimension at DIN ISO 228-1
Connection G PN
Class
TÜV-
Report-no.
1/2
(5)
3/4
(7) 1 (10)
1 1/4
(12)
1 1/2
(15) 2 (20)
Test
pressure
(*) PT
100-EVF...
100
900/1500
- O O - - - -
PT 100
(*) Test pressure to perform leakage test "No FUNCTION TEST"
X Type test acc., O Acceptance test certificate 3.2 possible, - not available,
Flange connection measures acc. to DIN EN 1092-2 / ANSI
Flange DN
Flange ANSI
PN TÜV-
Report-no.
15
(5N)
1/2
20
(7N)
3/4
25
(10N)
1
32
(12N)
1 1/4
40
(15N)
1 1/2
50
(20N)
2
Test
Pressure
(*) PT
5 EVF..NÜ..92/93 40 S8/99 X X X O O O PT 16
10 EVF..NÜ..92/93 40 S8/99 X X X O O - PT 25
25 EVF..NÜ..92/93 40 S8/99 X X X O O - PT 40
40 EVF..NÜ..92/93 40 S8/99 X X X O - - PT 40
40 EVF..NH.Ü.. 40 S8/99 X X X - - - PT 40
100 EVF..N.. 100 - - - O(**) - - - PT 100
(**) Passage 12mm
(*) Test pressure to perform leakage test "No FUNCTION TEST"
X Type test acc., O Acceptance test certificate 3.2 possible, - not available,
Details to the electrical data can be found on the type signand the adeqaute operating instructions of
the solenoid valves.
1.2 Application
The UNI Geräte solenoid valve EV and EVF are used as automatic safety shut-off valves to secure, to
limit, shut-off and release Liquid gas heating installation and in steam boiler plant.
Qualified for fuel oil EL, M (EV) according to DIN 51603 and for liquid gas to DIN 61522 in liquid state
and other liquids having a viscosity rate up to 75mm²/s and for fuel oil S (EVF).
If used in other cases, the operator must carefully check if construction/design of valve, accessories
and materials are suitable for the new application. The range of application is subject to the
responsibility of the plant planner. The service life of the valve is 20 years.
Operating and mounting manual (translation)
EV / EVF
2.0 Danger Notices
2.1 Safety terms
The signal terms DANGER, CAUTION und NOTICE are used in this operating manual in case of
notices concerning special dangers, or for unusal information requiring a special marking.
DANGER! means that in case of non-observance there is danger to life and/or
considerable damage.
CAUTION! means that in case of non-observance there is danger of injury and/or
damage.
NOTICE! means that attention is drawn to technical correlations/connections.
Observance of other, not especially marked notices concerning transport, assembly, operation and
maintenance and other data (in the operating manual, product documentation and at the unit itself) is
also essential, in order to avoid disturbances that might affect direct or indirect damage to property or
injury to persons.
2.2 Safety notice
Non observance of safety instructions can lead to loss of any claim for damages.
Non observance can lead to the following mentioned dangers:
Failure of important functions of the valve/plant
Endangering of persons by electrical or mechanical influences.
Protection against accidental contact for moving parts may not be removed as long as the
valve is in operation.
Leakage of dangerous media (e.g. explosive, toxic, hot) must be removed in the way that
there is no danger for persons or environment. Laws and regulations must be observed.
2.3 Qualified staff
These are persons who are familiar with erection, assembly, starting, operation and maintenance of
the product and who have special qualifications acc. to their activities and functions, e.g.:
Instruction and obligation to carry out and meet all regional and in-house orders and
requirements.
Education or instruction according to the safety engineering standards in use and
maintenance of adequate safety and working protection equipment.
Training in first aid.
2.4 Unauthorized modification and spare part production
Modification or changes of the valve are only allowed after agreement of the manufacturer. Original
drawings and accessories authorized by the manufacturer are for safety purposes. The use of other
parts or unauthorized changes at the valve by third persons may cancel and abolish the
manufacturere’s liability for resulting consequences.
2.5 Unauthorized operation
Operational reliability of the delivered valve is only guaranteed in case of determined use in
accordance to paragraph 1 of the operating manual. The application limits mentioned on the type
sign may on no account be exceeded.
2.6 Safety information for the use in explosion-prone areas guideline 2014/34/EU
The temperature of the medium must not exceed the respective temperature class, and
respectively, the respective maximum permitted medium temperature as per operation
guideline.
If the valve is heated (e.g. heating jacket), care must be taken, that the specified temperature
Operating and mounting manual (translation)
EV / EVF
The valve must be connected to the ground.
In the case most simple this can be realized via pipe screws by means of tooth disc.
Otherwise the connection to the ground must be implemented by other measures e.g. cable
links.
Control valves, electrical and electrical/mechanical drives as well as sensors must undergo a
separate conformity check as per ATEX. In doing so the respective safety and explosion
protection information in the operation instructions are to taken into special consideration.
Any modifications whatsoever to the valve are not allowed. The ATEX approval is void with
immediate effect if the valve is modified without prior authorisation (even including painting).
UNI-Geräte GmbH must be consulted before any modifications are made.
Furthermore we point out the guideline 95/C332/06(ATEX 118a), which include the minimum
regulations for the improvement of the health-related situation and the safety of the employees, who
might be jeopardized by an explosive atmosphere.
3.0 Handling
3.1 Transport
For any transport works, the generally recognised technical rules and standards as well as rules for
prevention of accidents must be observed.
In case of transport, storage and stopping, the flange protection caps must be mounted at both valve
flanges.
The goods to be transported must be carefully treated. During transport, the valve must be protected
against strokes, impacts or vibration. The coat of lacquer may not be damaged. Transport temperature
is –20°C up to +60°C.
Never transport the valve at screwed cable glands, appliance plugs or add-on units. The valve
can be transported at ring nuts, flange borings or by means of a belt under the solenoid drive.
Transport the valve in a case or on a pallet with smooth base and put it softly on plain floor. Never put
the valve on limit switch box.
The goods must be checked on completeness and transport damage. See also section 9.0
3.2 Storage
If the valve is not installed immediately after delivery, it must be stored properly.
Storage temperature -20°C up to +60°C, dry and clean.
The lacquering protects against corrosion in neutral dry atmosphere. Do not damage colour.
In humid rooms, a drying agent or a heating resp. is necessary because of condensation of
water.
Requirements according to DIN 7716 (products made of caoutchouc and rubber) must be met.
3.3 Handling before mounting
In case of valve with protection caps, they must be removed before being mounted!
Protect against atmospheric influences such as humidity.
Appropriate treatment protects against damage.
4.0 Product Description
The UNI-Geräte solenoid valves of the series EV and EVF are directly controlled currentless closed
shut-off valves with fast shut-off function as per DIN EN 264 (liquid gas in liquid gas phase as per DIN
51622) with solenoid valve.
Sectional drawing 11.1 Fig. in Fig. 1 and 6 shows the valve construction.
On switching on of the solenoid drive (800) the solenoid core (207) is pulled against the upper part of
housing (106). The pressure spring (503) is further prestressed and the valve disk (200) opens the
valve cross section. The valve is open.
On shutting off, supply interruption or supply failure the valve closes to the solenoid drive. The valve
disk (200) closes due to the pre-stress of the pressure spring (5 03). The valve is closed.
4.2 Technical data
Opening times: 0,3 – 0,7s , depends upon nominal width
Closing times: 1s
Operating and mounting manual (translation)
EV / EVF
TÜV-report-no:
Valve class and valve group acc. to DIN EN 264
CE-sign and no. of relevant location to 2014/68/EU
Fluid group and test pressure PT to 2014/68/EU
Solenoid drive type
Electr. performance
Voltage
Frequency
Protection type
When using solenoid drives for x-protection zone 1 refer to information in the valid operating
instructions.
Refer also to section 10.0.
5.0 Installation
5.1 Warning of dangers during installation, operation and maintenance
DANGER!
Safe operation of the valve can only be guaranteed if it is installed, commissioned
and maintained by qualified personnel (see point 2.3 “Qualified staff“) correctly and
in observance of the warnings in this operating manual. Apart from that, the
operation safety order and the qualified use of tools and protection equipment must
be guaranteed. The operating instructions for the valve must be observed during all
work on or with the valve. Failure to observe these instructions may result in injury
or in damage to the valve or other installations.
When the valve is used as a final sealing element, a safety precaution e.g. blanking disc, blind flange,
etc., in accordance with the code of practice of the German Technical and Scientific Association for
Gas and Water (DVGW) is recommended during all repair work.
5.2 Installation
Apart from the general installation guidelines, the following points should be observed:
NOTICE!
Remove the flange covers.
The inside of the valve and the pipeline must be free from foreign particles.
Observe the installation position in relation to the flow direction, see markings
on the valve.
Centre gaskets between the flanges.
The connecting flanges must be aligned.
Ensure that none of the components is strained during installation.
The valve must not be used as a fixed point; it is supported by the pipework
system.
Protect valves from soiling, particularly during construction work.
Thermal expansion of the pipework must be equalized using compensators.
The valve can be installed with upright but not suspended solenoid drive. Valves with order suffix “W”
in the type designation can be installed with horizontal solenoid drive.
NOTICE!
Please observe the solenoid drive operating instructions (BTA).
6.0 Operation
DANGER!
Before commissioning a new installation or before starting up an installation again
after repairs or modifications, ensure:
The proper completion of all installation and assembly work!
Commissioning only by “qualified staff” (see point 2.3).
Installation or repair of existing guards and protection equipment.