Flowserve CB 1 - Manual (Page 16)

16
Maintenance
– continued –
CB 2... Replace springs / O-ring
Note that springs are preloaded which means that they can jump out of the valve body
when the valve is being installed or removed.
This presents the risk of injuries to hands, arms and face.
GESTRA Swing flap non-return valves CB 2... do not require special maintenance.
However, in certain cases it may be necessary to replace the springs or O-rings.
Danger
Swing flap non-return valve CB 2...
Remove springs and O-rings (if fitted).
Insert new O-ring. Insert new springs into the lateral guide.
Detach springs from support.
1 2
3 4