The turning center of the butterfly plate is on the centerline of the valve body and the sealing face section of the butterfly plate. In closing, the ex-circle sealing face of the butterfly plate will extrude the valve seat made of synthetic rubber, generating elastic deformation on the seat to form an elastic force used as a sealing specific pressure so as to guarantee the tightness of the butterfly valve.
- Design standard as per: API 609, ASME B16.34, GB/T 12238.
- 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.
- Soft seat designed.
- Leakage rate: ANSI B 16.104 Ⅵ.
Body material:carbon steel, stainless steel, alloy steel
Nominal diameter: 2"～24"（DN50~DN600）
End Connection: RF, RTJ
Pressure range: Class150～300（PN10~PN50）
Working temperature:-46℃～+120℃
Operation : Wrench, worm gear, electric, pneumatic, etc.
