Control valve where a bellows is installed in the gland, and the valve body and the bellows case are covered with steam jackets.
![cat10_b](https://www.thaipointglobal.co.th/wp-content/uploads/2020/02/cat10_b-1.jpg)
![ตาราง-02](https://www.thaipointglobal.co.th/wp-content/uploads/2020/02/ตาราง-02-9-scaled.jpg)
Control valve where a bellows is installed in the gland, and the valve body and the bellows case are covered with steam jackets.