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Understanding the principle of pneumatic pressure regulating valves is crucial for making the right selection.
The pneumatic pressure regulating valve is a pressure-balanced type, featuring cage-guided operation and a dual-seal design. It is equipped with a multi-spring pneumatic diaphragm actuator, which boasts a compact height, lightweight construction, and easy installation.
Release date:
2020-04-28
Principle of the pneumatic pressure regulating valve:
The pneumatic pressure regulating valve is a pressure-balanced type of control valve, featuring cage sleeve guidance and a dual-seal design. It is equipped with a multi-spring pneumatic diaphragm actuator, which boasts a compact height, lightweight construction, and easy installation. The valve core of this pneumatic pressure regulator utilizes a cage sleeve design, converting the supply air pressure into linear movement of the valve core, thereby automatically adjusting the valve opening to achieve continuous pressure control within the pipeline.
Shanghai Taichen pneumatic pressure regulating valves are renowned for their compact structure, lightweight design, sensitive response, minimal pressure drop loss, large valve capacity, precise flow characteristics, and convenient maintenance. Overall, these valves offer smooth operation, high allowable pressure differentials, accurate flow performance, and low noise levels—making them particularly well-suited for applications where even small leakage must be minimized and where significant pressure differences exist between the upstream and downstream sides of the valve.
The pneumatic pressure regulating valve is primarily designed for applications in systems requiring medium flow control, pressure stabilization, and safety on pipelines. Featuring reliable operational characteristics, minimal seat leakage, precise flow performance, and an exceptionally wide adjustable range, this valve is poised to deliver high-quality control results across a broad spectrum of uses thanks to its unique advantages.
The pneumatic pressure regulating valve consists of a multi-spring pneumatic diaphragm actuator and a compact, low-flow single-seat valve body. The multi-spring actuator features a compact design—low height, lightweight, and easy to install. Paired with a valve positioner, Shanghai Taichen Valve’s pneumatic pressure regulating valve converts electrical signals into corresponding linear displacements, automatically controlling the valve opening to continuously adjust process parameters such as pressure, flow rate, temperature, and liquid level in pipelines. This type of valve is widely used for precise control of gases, liquids, steam, and other media, making it especially suitable for applications where small pressure differences and minimal allowable leakage are required.
Pneumatic Pressure Regulating Valve Selection:
The control valve is a critical component in automatic control systems; if selected or calculated inaccurately, or if improperly installed and maintained, it can directly compromise the control system's performance—and even lead to serious production accidents. Therefore, every aspect of proper selection, installation, and maintenance of control valves must be given utmost attention.
(1) Select the appropriate control valve structure and type based on the process conditions.
(2) Select the appropriate flow characteristics based on the process object.
(3) Calculate the flow coefficient based on the process parameters, and select the valve size accordingly.
(4) Select materials and auxiliary equipment according to the process requirements.
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