دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: an orifice meter fitting having two chambers. The orifice plate is rolled from one chamber to another;the lower chamber is isolated from the upper chamber so that the gas flow can continue unimpeded while the plate is removed. Compare single-chamber fitting.

n: in an orifice meter installation, a mechanism for holding the orifice plate in the pipeline. In a singlechamber fitting, the gas flow must be stopped and the meter tube depressured before the orifice plate can be removed. Compare dual-chamber fitting.