Operating and mounting manual
(translation)
EVS..Ü
_______________________________________________________________________________________________________
220100.098-04
Page 8 /17
Release 08/2013
TM 3254
Depending on the field of application, the local regulations have to be observed, e.g. the
operation safety order.
6.3 Maintenance
Oil – solenoid valves must be checked for their function and internal leakage within regular periods of
time. The operator must respectively determine the intervals for regular checks according to the operating
instructions. UNI-Geräte recommends a visual control of the inside once a year and an overhauling of the
valve after two years.
6.4
Putting back into operation
When putting a valve back into operation, ensure that all the necessary steps described in section 5.2
(Installation) and section 6.1 (Commissioning) are repeated.
7.0 Troubleshooting
7.1 Detection
of
defects
DANGER!
Be sure to observe the safety instructions during troubleshooting.
If the malfunctions cannot be remedied using the following
“Troubleshooting plan (7.2)”
please contact
the manufacturer.
In the event of faults in the function or operating behaviour of the valve, check whether the installation
work was carried out and completed as described in this operating manual.
Depending on the field of application, the operation safety order must be observed.
Check the data on material, pressure, temperature, voltage and flow direction with the layout plan of the
pipework system. In addition, check whether the operating conditions correspond to the technical data in
the data sheet or on the rating plate.
7.2 Troubleshooting
plan
Malfunction Possible
causes
Remedy
No flow
Valve does not open
Switch on solenoid drive (800)
Check operating voltage
Working pressure too high
Compare working pressure with the data
on the rating plate
Flange covers were not removed
Remove flange covers
Low flow rate
Contaminated strainer
Filter clean/exchange
Clogging in the pipework system
Check pipework system
Valve leaking at seat,
no internal tightness
Valve seat gasket (400) or valve seat
(100) damaged by external particles
See section 8 or replace valve
No external tightness Gaskets damaged
See section 8 or replace valve
Valve does not close Connected voltage too high
Check whether there is residual voltage,
see section 4.1
Flange fracture (valve/
pipework)
Screws not tightened uniformly, mating
flanges not aligned
Align pipework.
Install new valve
NOTICE!
Observe section 10.0 before all installation and repair work!
Observe section 6.4 when putting the valve back into operation!
8.0 Dismantling of the Valve
