This control valve has a structure equipped with an external pressure type bellows.
The seal perfomance is superior to that of a general gland structure.
Therefore, the control valve is applicable to controlling toxic fluid and vacuum service.
![cat03_a](https://www.thaipointglobal.co.th/wp-content/uploads/2020/02/cat03_a-1.jpg)
![cat03_b](https://www.thaipointglobal.co.th/wp-content/uploads/2020/02/cat03_b.jpg)
![ตาราง-01](https://www.thaipointglobal.co.th/wp-content/uploads/2020/02/ตาราง-01-4-scaled.jpg)
This control valve has a structure equipped with an external pressure type bellows.
The seal perfomance is superior to that of a general gland structure.
Therefore, the control valve is applicable to controlling toxic fluid and vacuum service.