01 Application

Fluorine chemical industry - high purity HF (hydrogen fluoride) gas, high purity TFA (trifluoroacetic acid) liquid

02 Project Name

Aisenberg a user project

03 Challenges

● The control valve flow rate is very low, requiring high adjustment accuracy

● The parts in contact with the medium must not have metal presence

● The valve as a whole is prohibited from oil and water

● The medium is highly fugitive and highly corrosive

●Field control valves do not have a long service life and need to be replaced every three months.

04 ASBG solutions

Working condition: Medium: high purity HF (hydrogen fluoride) gas, high purity TFA (trifluoroacetic acid) liquid, pressure: 0.1~0.4MPa, working temperature: -5~70℃, small flow regulation.According to the field conditions, Aisenberg redesigned and developed a new micro-flow plug structure on the basis of the bellows lined control valve to solve the pain point problem. The structure has the following advantages:

(1) The valve body is lined with imported PFA, and the plug and bellows are formed into one body to ensure that there is no metal in contact with the medium, and the internal parts are integrated processing, with stable structure and no leakage point;

(2)  The valve plug is made of TFM-PTFE material with anti-compression and stable performance. According to the calculation of the site working conditions, the rated Cv of the control valve designed by us is 0.04, and the plug is designed as a V-shaped plug structure with a groove;

(3)  The plug is in the seat guide sleeve throughout the stroke to ensure that the control valve has high-quality adjustment characteristics when the temperature and pressure change;

(4)  The inner plug is nested in the metal liner, and the valve stem is directly connected with the metal liner to ensure that the actuator output force directly acts on the sealing surface of the plug to ensure reliable sealing;

(5)  Bellows seal + packing double seal structure, to ensure that the overall seal of the valve is reliable.

Aisenberg control valve Series - Micro flow control valve

It has the characteristics of accurate adjustment, small size, light weight, high sealing performance, compact structure and easy maintenance, long service life, etc

05 User feedback

Aisenberg micro flow control valve in Aisenberg a user project site has been running for more than a year, the control accuracy and stability of the system has been verified, the production efficiency has been significantly improved, the user's unanimous recognition.

06 Solution value

Aisenberg Micro Flow Control valves provide the industry with accurate and stable fluid control solutions to improve production efficiency and product quality. It also has good environmental performance, can effectively reduce energy consumption and reduce emissions, and contribute to sustainable development.

Aisenberg Micro flow control valve is an accurate flow control device, which has a wide range of applications and market demands. Aisenberg will continue to innovate and develop in terms of material selection, structural design and functional expansion. With the continuous development and progress of industrial automation technology, micro-flow control valves will be more intelligent, efficient and environmentally friendly, and make greater contributions to the development of industrial automation.

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