What are the characteristics of cylinder self-operated pressure regulating valve?

Self-operated pressure regulating valves are divided into three series: self-operated pressure regulating valves, differential pressure regulating valves and flow regulating valves. Self-operated pressure regulating valve can be divided into two types according to the position of pressure point: before valve and after valve. When the pressure point is in front of the valve, the pressure in front of the valve is unchanged. When the pressure point is behind the valve, it is used to adjust the constant pressure of the valve. When the pressure before and after the valve is introduced into both sides of the air chamber of the actuator at the same time, the self-operated differential pressure regulating valve can adjust the pressure at both ends of the regulating valve to be constant, or introduce the differential pressure at both ends of the orifice plate installed on the pipeline into both sides of the air chamber of the membrane actuator to form a self-operated flow regulating valve, or realize the flow regulation after detecting the flow by using the self-operated differential pressure regulating valve in other ways. Zhenrui electromechanical