Stability Analysis of Flow Control Valve

Abstract

The speed regulating valve is used to control the motion speed of the executive components of the hydraulic system by regulating flow rate for accomplishing the uniform and stable motion. The valve is a combined flow valve by two valves in series, one is a constant differential pressure reducing valve, and the other is a throttle valve. The pressure reducing valve automatically compensates the influence of load, and the pressure is always kept constant. However, it does not change and eliminates the influence of load change on flow, but this flow stability range of the flow control valve is limited, that is, there is a limit to pressure change on the inlet and outlet. This paper introduces the structure principle and flow stability analysis of the flow control valve.