دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a sheet of metal, usually circular, in which a hole of specific size is made for use in an orifice fitting.

n: a part of orifice meter, it is circular metal disc.

part of a orifice metering system. A plate with a hole through which a single phase flow produces a pressure drop.