contact and press onto the valve seat sealing face tightly.
Design standard as per: API 609, ASME B16.34, GB/T12238, JB/T 8527.
Small installation space, light weight, and maintenance friendly;
Good sealing effect and long service life;
Simple structure and small opening/closing torque;
Good flow adjusting ability, high precision of flow characteristic curve and good dynamic adjustment stability;
For soft seat the leakage rate: ANSI B 16.104 Ⅵ.
Body material: carbon steel, stainless steel, alloy steel
Nominal diameter: 2″～180″（DN50~DN4500）
End connection: RF, RTJ
Operation : wrench, worm gear, electric, etc.