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Experimental Determination of Hydrodinamic Characteristic of a Gas Pressure Regulator ZR 20 D – Preliminary Report

An experimental determination of hydrodynamic characteristics of a direct low inlet pressure gas regulator has been carried out. Characteristics have been obtained for constant outlet pressure conditions over the given range of mass flow rate at the varying inlet pressure. Constant outlet pressure at the varying flow rate provides for the accurate flow measurement and stable operation of gas appliances. Low inlet pressure gas regulators are devices for maximal inlet pressure up to 100 mbar and outlet pressure ranging from 8 to 33 mbar, depending on gas type, and for a flow rate up to 25 m3/h.

low inlet pressure gas regulator; local pressure loss coefficient; Reynolds number; operating range of the regulator

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