Kontsentriline arvesti on nt pöörleva kolviga positiivse nihkega arvesti, milles voolav vesi paneb kolvi kambris pöörlema, kusjuures iga kolvi pööre on võrdne teadaoleva veemahuga.
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Kontsentrilise arvesti sisse- ja väljalaskeavad ning kollektor on nendevahelises liideses samatelgsed.
The concentric water meter is a positive displacement model with a rotating piston. The flowing water causes the piston to rotate within its chamber, with each piston revolution being equivalent to a known volume of water.
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The inlet and outlet passages of the concentric meter and the manifold are coaxial at the interfacebetween them.
