Commissioning And Operation; Faults - WIKA EMICOgauge Manual De Instrucciones

5. Commissioning, operation / 6. Faults

5.2 Commissioning and operation

To close the valve, turn the handle in a clockwise direction as far as the stop. To open the
valve, turn the handle anticlockwise as far as the stop. It will take approximately 4 turns
from open to closed and vice versa.
The flow can be controlled by not totally opening/closing the valve.
EN
Please note that the handle may present a slight play and spin freely up to a
quarter turn when in the depressurised state. This is due to the constructive
design.
The valve, especially the handle, must not be subjected to any external loading (e.g. use
■
as a climbing aid, support for objects).
The handle may only be used by hand; the use of tools is not accepted.
■
The torque on reaching the valve stop must only be hand-tight.
■
Ensure that all valves of the product are closed prior to opening the main valve of the
■
process line.

6. Faults

The following table contains the most frequent causes of faults and the
necessary countermeasures.
Faults
Fault at the pressure
gauge
Leakage at the
EMICOgauge
connection
Difficult valve handle
operation
10
Causes
Various
Error at the sealing point
Lubrication problem
due to unchanged valve
position for a long time
period
Defective parts due
to corrosion, process
conditions, age
Overtightened gland nut,
defective sealing packing
WIKA additional operating instructions for EMICOgauge
Measures
See the chapter on faults in the operating
instructions for the mounted pressure
gauge.
Disassemble the product as described in
the chapter "Separation at the EMICOgauge
connection".
If leakage cannot be eliminated, replace
product.
Perform a functional test as described in
chapter 7.3 " Maintenance of instrumentation
valve " and shorten inspection interval as
appropriate.
Replace product.
Replace product.