An
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B-2231-UK-11-2013-REV. C
Shaft / bearings
Square stem.
PTFE bearing ensures perfect turning and centric positioning of the stem.
The sleeve bearing provides excellent support, where actuators are used for
automation purposes.
Unique bottom bearing
The bottom PTFE/Graphite bearing is one of a kind - it is placed inside the
disc, where it is actually needed.
Usually there would be a bearing in the bottom of the body - which means a
rotating shaft that transmits the forces put onto the disc down to the bearing.
The result is a displacement of the forces and this is prevented by the unique
bottom bearing - giving the valve a longer and trouble-free life span.
Long shafts for transmitting force are more vulnerable to excessive torsion
than short shafts.
V-type ring and end cover
The V-ring provides a secondary seal which prevents leakage to the stem.
The V-ring also provides a weather seal.
The end cover is sealed at the bottom with a threaded plug.
The end cover has an anit-dust O-ring.
Construction DN40 - DN300 Wafer & lug type
Know-how makes the difference
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