The SIRIUS pipe-piston verification units (hereinafter referred to as TPU) are designed for reproduction, storage and transfer of liquid volume unit in the flow during verification, calibration, determination and control of metrological characteristics of volumetric and mass flow transducers, liquid meters, working standards. The principle of TPU operation consists in repeated displacement of a known volume of liquid from the measuring section of the TPU.
TPU are available in stationary or mobile (mobile) version. The type of execution of the calibrated section is rectilinear.
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