Self operated pressure regulating valve ZZYP V230

Relying on the pressure and temperature of the medium flowing through the valve as the energy source to drive the valve to work automatically, there is no need for external power supply and secondary instruments. This type of self operated regulating valve utilizes feedback signals (pressure, pressure difference, temperature) from the valve output end to be transmitted through signal pipes to the actuator to drive the valve disc to change the valve opening, achieving the purpose of regulating pressure, flow rate, and temperature. This type of regulating valve is further divided into two types: direct acting and indirect acting.

Direct acting type, also known as spring loaded type, has elastic elements such as component springs, corrugated tubes, and corrugated tube type temperature bulbs within its structure, utilizing the principle of balancing elastic force and feedback signals.

The indirect acting regulating valve adds a pilot valve, which amplifies the feedback signal and then drives the main valve disc to move through the actuator to change the valve opening.

Working principle and precautions of regulating valves

Any type of regulating valve actuator is a device that utilizes energy to drive the valve. This device may be a manually operated gear set used to open and close valves, or an intelligent electronic component with complex control and measurement devices that can achieve continuous valve adjustment. With the development of microelectronics technology, actuators have become more complex. View full text

Selection, maintenance, and calibration of regulating valves

The regulating valve is the most common actuator in the automatic control system of power plant. Generally, the automatic control system consists of objects, monitoring instruments, controllers, actuators, etc. The correct selection of the structural type, flow characteristics, flow capacity, and output torque, thrust, and stroke of the regulating valve plays a very important role in the safety, stability, economy, and reliability of the automatic control system. View full text

Installation details and skills of pneumatic control valves

Pneumatic control valves are usually a combination formed by connecting the pneumatic actuator and the control valve after installation and debugging. The installation and debugging of pneumatic control valves are extremely important. This article mainly introduces the installation details and skills of pneumatic control valves: A. During the installation process, always follow the installation guidance and precautions of pneumatic control valves; B. The working environment temperature of the regulating valve should be within (-30~+60). The relative humidity should not exceed 95% or 95%, and the relative humidity should not exceed 95%