Emergency Action - Samson EB 8015 EN Mounting And Operating Instructions

Malfunctions
Malfunction
The valve leaks to the
atmosphere (fugitive
emissions).
See the 'Markings on the device' chapter.
1)
Note
Contact our after-sales service for malfunctions not listed in the table.

8.2 Emergency action

Plant operators are responsible for emergen-
cy action to be taken in the plant.
In the event of a valve malfunction:
1. Close the shut-off valves upstream and
downstream of the control valve to stop
the process medium from flowing
through the valve.
2. Perform troubleshooting (see Chap-
ter 8.1).
3. Rectify those malfunctions that can be
remedied following the information given
in this document. Contact our after-sales
service in all other cases.
8-2
Possible reasons
Defective packing
Version with adjustable
packing : packing not
1)
tightened correctly
Version with bellows
seal: the bellows seal is
defective.
Flanged joints loose or
body gaskets worn out
Recommended action
Replace packing (see the 'Servicing' chapter) or
contact our after-sales service.
Adjust the packing (see section 'Adjusting the
packing' in the 'Installation' chapter> 'Testing the
installed valve'). Contact our after-sales service
when it continues to leak.
Contact our after-sales service.
Check flanged joints.
Replace gaskets at the flanged joints (see the
'Servicing' chapter) or contact our after-sales
service.
Putting the device back into operation after
a malfunction
See the 'Start-up' chapter.
EB 8015 EN