Electronic motorized zone valve
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 18, 2001
Issued Date -
N/A
app pub date -
Aug 28, 2000
filing date -
May 15, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A zone valve for use in a hydronic system, the valve including a ball element through which liquid flows in an axial direction, a valve casing enclosing a ball element, a valve seat in contact with the ball element and the valve casing, the valve seat having a notch to receive an O-ring, an O-ring installed in the notch, and wherein the notch has a surface inclined with respect to the axial direction so that an axial force on the valve seat causes the O-ring installed in the notch to be compressed to improve a seal between the valve seat and an internal bore of the valve casing.
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