Control valve
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How are the existing valve brand grades in the domestic market classified according to the ABC system? For example, the first category includes Fisher, Fox, Mesco, Samson; the second category consists of Chuanyi, Wuzhong, Azipol, Metso, etc.; there are also some valves from the third category. Are there any other valves that are good? Solving, including intelligent valve positioners and so on.
It is suggested that while the brand is important, a physical inspection is even more crucial. Additionally, cost-effectiveness, the operating environment, lifespan, routine maintenance, and the procurement of accessories must also be taken into consideration. For reference.
Currently, there are many manufacturers of control valves in China; just as was the case with conventional ball valves in previous years, the quality and performance of these valves vary widely and need to be improved.
This post was last edited by dellkey on 2024-12-19 09:54. Product Overview of the MCT790 Intelligent Valve Positioner: The MCT790 intelligent valve positioner operates with a 4–20mA current control signal; it uses a high-performance microprocessor to precisely control the valve’s opening degree. It allows for automatic calibration with just one button press, employs fuzzy PID optimal control internally, and supports 4–20mA transmission of the valve’s opening degree. Key features and functions: Receives 4–20mA current control signals for precise valve control; uses an electrical conversion mechanism with strong seismic resistance; modular internal structure that reduces the likelihood of failures and facilitates maintenance; provides valve position feedback for monitoring the valve’s opening degree in control systems; equipped with 4 buttons that allow for automatic settings, and enables direct verification of the locator’s status on-site; features a high-backlight LCD screen that supports Chinese display; low gas consumption, resulting in good cost efficiency; protection rating of IP66
There are too many valves available on the market these days, but few of them are truly of high quality. Leaving materials aside, imported brands are now manufactured in China, so there’s definitely no issue with the materials. What matters most is experience in selecting and applying these valves
Choose based on economic and practical conditions; as long as it works is fine
The fluorine-lined control valves we produce are excellent, as are our ceramic control ball valves; we are professionals in this field
Metso has been classified as Grade B – is he okay with that?
Although he sits somewhere between the first and second tiers, which is awkward, the only thing that qualifies him for the first tier is his valves and positioners in the papermaking industry. When it comes to the petrochemical hydrogenation industry, Messer and Voith might be unwilling to get involved again.