System for gas flow rate control and gas control valve
摘要
<p>The present invention relates to a system for high or low pressure gas flow rate control and a high or low pressure gas control valve, consisting of a system (S) which controls the movement of the ram of the valve (1) by measuring the difference in pressure between the inlet and outlet of said valve (1), in order to compensate the error between the actual and programmed flow rates, wherein the valve (1) comprises a Venturi (3) being regulated by said ram.</p>
