Regular resilient seated butterfly valves are built mainly for fluid isolation as they've got bad control characteristics. The seat is surely an elastic solitary piece that retains in place the valve body. This layout might have its integrity compromised If your valve is stored partly open. สามารถดูสินค้าและสอบถามรายละเอียดเพิ่มเติมได้ที่ The 3 pneumatic https://pressuregauge472593.blogocial.com/The-Ultimate-Guide-To--49732452