The ZZYP type self-contained pressure regulating valve is a device that operates without external power sources, utilizing the energy of the controlled medium as the power source, generating thrust through the actuating diaphragm chamber, and controlling the movement of the throttling element to achieve automatic regulation. It has integrated functions of measurement, actuation, and control. It can be used in environments without air or electricity.

Widely applied in the automatic control systems of various equipment for gas, liquid, and steam mediums in the oil, chemical, power plant, light industry, and dyeing and printing industries, including deceleration and pressure reduction, pressure stabilization (for valve downstream pressure regulation), pressure relief, and pressure stabilization (for valve upstream pressure regulation). Different valve core structures and actuating mechanisms can be selected according to the user's specific operating conditions to achieve the desired control effect.