The Pneumatic Actuated Soft Seated Concentric Butterfly Valve is a high performance flow control device designed for general and industrial applications requiring tight shutoff. Featuring a resilient seated design with a soft seat, this butterfly valve ensures bubble-tight sealing and excellent reliability. Unlike offset butterfly valves or triple offset designs that use metal seals, the concentric structure positions the disc in the center of the seat for low-torque operation and minimal leakage. Available in various body materials, this valve is ideal for low to medium pressure systems and offers dependable service with the efficiency of pneumatic actuation.
| Design Basis | GB Standard |
|---|---|
| Design Standard | GB/T 12238 |
| Face-to-Face Dimension | Wafer Type (GB/T 12221) |
| Test & Inspection | JB/T 9092 |
Note:The structural length and connecting flange size of ball valve series can be designed and manufacured as per users'requirements.
| No. | Part Name | Material (Z) | Material (C) | Material (P) |
|---|---|---|---|---|
| 1 | Seat | Rubber, PTFE | Rubber, PTFE | Rubber, PTFE |
| 2 | Taper Pin | 45 Steel | 45 Steel | Stainless Steel |
| 3 | Butterfly Plate | Ductile Iron (Hard Chrome Plated) | Carbon Steel / Stainless Steel | Stainless Steel |
| 4 | Body | Grey Cast Iron (GG25) | Carbon Steel (WCB) | Stainless Steel (CF8/CF8M) |
| 5 | Screw | 35 Steel | Carbon Steel | Stainless Steel |
| 6 | Stem | 45 Steel | Stainless Steel | Stainless Steel |
| 7 | Key | 45 Steel | 45 Steel | Stainless Steel |
| 8 | Bushing | Copper Based Powder Metallurgy | Copper Based Powder Metallurgy | Copper Based Powder Metallurgy |
| 9 | O-Ring | Rubber、Viton | Rubber、Viton | Rubber、Viton |
| 10 | Pneumatic Device | AT Series, AW Series | AT Series, AW Series | AT Series, AW Series |
| 11 | Location Indicator | Plastic | Plastic | Plastic |
Note: The main components and sealing rings of the series ball valves can be designed and selected according to actual working conditions or special user requirements.