The verification tube piston bi-directional OGSB units are designed to reproduce, store and transfer the unit of liquid volume during verification, calibration, calibration and control of metrological characteristics of volume and mass flow transducers, liquid meters, working standards of mass and volumetric flow rate of liquid. The principle of TPU operation consists in repetitive displacement of known volume of liquid from the measuring section of TPU.
TPU are available in stationary or mobile (mobile) version. Type of execution of the calibrated section: "U"-shaped, "scorpion", rectilinear.
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