Owner manual

Rev. 0040805003 3409 Page 13
Operating and installation instructions
CONA
®
SC/SC-Plus - Ball float steam traps
9.0 Troubleshooting table
ATTENTION !
- refer to item 10.0 and 11.0 prior to dismantling and repair work!
- refer to item 6.0 before restarting the plant!
Fault Possible cause Corrective measures
No flow Installed in wrong flow direction Fit valve in direction of flow arrow.
Note installation position
Check lifting force; refer to item 5.5.1!
Flange covers not removed Remove flange covers
Ball float (pos. 24.16) defective Note installation position;
refer to item 7.1
Reduced flow Wrong installation position Note installation position;
refer to item 5.5.1
Correct installation position;
refer to item 7.2
Strainer clogged (pos. 2) Clean strainer; refer to item 7.1
Piping system clogged Check piping system
Excessive amount of inert gases in
system
Use pressure compensation line option;
refer to item 7.3
No closure, or internal
leakage
Controller clogged Clean strainer and controller; refer to
item 7.1
Controller worn out Change controller; refer to item 7.1
Controller incorrectly screwed into body Check seal face between body and
controller, tighten controller correctly;
refer to item 7.5
Controller operated below safe operating
pressure
Observe operating limits as per data
sheet, i.e. possibly select different
controller
External leakage Hood (pos. 16) not properly tightened
with cheese-head screw (pos. 27)
Tighten; refer to item 7.5
Flat gasket (pos. 17) defective Replace sealing;
refer to item 7.1