Accessories; Troubleshooting - Samson 580 Translation Of The Original Operating Instruction

Original-Betriebsanleitung
Translation of the original operating instructions
2/2 Schrägsitzventil Typ 580
2/2 Angle Seat valve Typ 580
7.

Accessories

Fitting and functional accessories are available via
8.

Troubleshooting

Fault
Valve leaks downstream
(doesn't close or doesn't
close fully)
Valve doesn't open or
doesn't open fully
Medium escapes from the
valve spindle* (underneath
handwheel)
Valve leaks between
bonnet and valve body
Valve body connection to
piping leaks
Valve body leaks
Handwheel cannot be
turned
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www.sed-flowcontrol.com
Potential cause
Operating pressure too high
Foreign matter between seat
seal* and seat
Valve body leaky or damaged
Seat seal faulty
Bonnet faulty
Gland packing faulty
Bonnet loose
flat sealing faulty
Valve body / bonnet damaged
Incorrect installation
Threaded connections / flange
bolting loose
Sealing components faulty
Valve body leaks or is corroded
Bonnet faulty
29
or contact us.
Solution
Operate valve with operating
pressure specified
in data sheet
Remove bonnet, remove foreign
matter, check
seat seal for damage and replace if
necessary
Check valve body and replace if
necessary
Check seat seal for damage and
replace if
necessary
Replace bonnet
Replace bonnet
Retighten bonnet retaining nut
Check gasket and the respective
sealing surfaces
for damage and replace parts if
necessary
Replace valve body / bonnet
Check installation of valve body in
piping
Retighten threaded connections /
flange bolting
Replace sealing components
Check valve body for damage,
replace valve body
if necessary
Replace bonnet
BA180003; Version c vom 28.10.2019