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Principle and explanation of electric low-noise cage type regulating valve

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Principle and explanation of electric low-noise cage type regulating valve


1. The electric low-noise cage type regulating valve is mainly designed to reduce the noise of compressible fluids. To adapt to gas throttling diffusion and expansion, the sleeve is equipped with many symmetrical small holes to reduce pressure drop. The fluid channel is S-shaped and lacks a guide vane to improve the smooth flow of fluid around the sleeve, resulting in low pressure drop loss, high flow rate, and low noise.


2. Regulating valve, also known as control valve, is a control component in the field of industrial automation process control that changes process parameters such as medium flow rate, pressure, temperature, and liquid level by receiving control signals output by regulating control units and using power operation. It is generally composed of an actuator and a valve. If according to the characteristics of the stroke, the regulating valve can be divided into straight stroke and angular stroke; According to the power used by the actuator, it can be divided into three types based on its function and characteristics: linear characteristics, equal percentage characteristics, and parabolic characteristics. Regulating valves are suitable for media such as air, water, steam, various corrosive media, mud, oil, etc. English name: control valve, the tag usually starts with FV. Common classification of regulating valves: pneumatic regulating valve, electric regulating valve, hydraulic regulating valve, self operated regulating valve.