Orifice meter with isolation valve on the carrier
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United States of America Patent
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-
Nov 8, 1983
Grant Date -
N/A
app pub date -
Mar 29, 1982
filing date -
Mar 29, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An orifice meter with a gate-like orifice disc carrier along the lower edge of which is a valve closure member. There is a restricted passageway across the top of the valve body and a seal ring carried around the valve closure member seals off the valve body when the carrier is moved upward from its normal working position across the flow passage. With the valve body sealed off, a hollow, hinged lid into which the carrier is moved, may be raised for servicing or replacing an orifice on the carrier.
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