3
2.2.1
Open body valve PV
Fig. 1.
In the open
body model the body and the actuator are connected
only to one of the end flanges (Fig. 1.). The construction allows a
slight deviation in the pipe angle and the valve can act as a
vibration absorber.
WARNING
Note that in case of a sleeve breakage, the flowing liquid
will leak to the environment.
2.2.2
Enclosed body valve PVE
Fig. 2. plug
The body of the enclosed
model prevents leakage of flowing
media to the environment (Fig. 2.). The lower part of the body
has a plug, which can be opened to check for sleeve failure.
WARNING
In case of a sleeve failure, slight leakage will occur
through the bushings.
If you open the plug for checking, be careful as the
medium may flow out.
NOTE
Changing the sleeve at appropriate intervals prevents
leakages.
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