Free Consultation Hotline
What are the categories of valve positioners in pneumatic control valves?
Release time:
2026-04-07 15:22
Pneumatic control valves can be classified according to their actuation mode into linear-stroke and angular-stroke types; according to the signal type, into pneumatic and electric types; and according to the operating principle of the valve actuator, into single-acting and double-acting types. In addition, based on the operating principle of the positioner itself, various forms, specifications, and models can be further distinguished. Below, a leading manufacturer of valve positioners will provide a detailed introduction.
A pneumatic control valve uses compressed gas as its power source, with a pneumatic cylinder serving as the actuator. It is driven by auxiliary components such as valve positioners, transducers, solenoid valves, hold‑position valves, gas storage tanks, and gas filters to achieve on/off or proportional control. By receiving control signals from industrial automation control systems, it regulates various process parameters of the medium in the pipeline, including flow rate, pressure, temperature, and liquid level.
A valve positioner is a key accessory for control valves. It receives the output signal from the controller and uses this signal to regulate the pneumatic control valve. Once the control valve actuates, the displacement of the valve stem is fed back to the positioner via a mechanical linkage, and the valve position can be transmitted to the higher-level system in the form of an electrical signal.
Valve positioners can be classified according to the valve’s mode of operation into linear-stroke and angular-stroke types; according to the signal type into pneumatic and electric types; and according to the actuator principle of the valve into single-acting and double-acting types. In addition, based on the positioner’s own operating principle, they can further be categorized into various forms, specifications, and models.
2020-01-19
CONTACT INFORMATION
Address: Room 501, Building 9, Guanggu Power Green Environmental Protection Industrial Park, 308 Guanggu Avenue, Donghu High-tech Zone, Wuhan City, Hubei Province
Telephone:（86-27）8738-3559 Free Hotline:400-878-5856
Business Hotline (Business hotline):13387658687,13707140294
Technical Hotline:13628621551
Business mailbox:torleo@qq.com
Company Email:1031076000@qq.com
OFFICIAL ACCOUNTS
Welcome to our official public number.
ONLINE MESSAGE
SAF Coolest v1.3.1.2 设置面板 SWWSX-AIUY-HASWE-AFV
违禁词： First, best, first-class, leading, unique, king, leader, leader, extreme, leader
无数据提示
Sorry, the current column is being updated, please look forward to it!
You can view other columns or returnHome Page