D671F Pneumatic Wafer-Type Fully Lined Fluoroplastic Butterfly Valve features a fluoroplastic-lined disc with spherical sealing surfaces, paired with a silicone rubber gasket at the seat base to regulate sealing performance. This valve offers effortless operation, tight sealing, and extended service life, suitable for rapid shut-off or flow regulation.
Application: The D671F Pneumatic Wafer-Type Fully Fluoroplastic-Lined Butterfly Valve is specifically designed for controlling non-corrosive or highly corrosive media. The valve body interior is lined with selectable fluoroplastic materials, suitable for various operating temperatures and fluid pipelines. It features high strength and excellent corrosion resistance.
Design & Manufacturing: GB12238
Structural Length: GB12221
Flange Connection Dimensions: GB4216, JB78, JB79
Operating Temperature: ≤100℃, ≤120℃, ≤150℃ (depending on lining material)
Materials:
Upper Valve Body: Cast Iron, Carbon Steel, Stainless Steel
Lower Valve Body: Cast Iron, Carbon Steel, Stainless Steel
Disc: Stainless Steel, Carbon Steel Fully Lined with Fluoroplastic
Disc Shaft: Stainless Steel
Seat: PTFE, PCTFE, FEP, PFA
Spring Strip (Gasket): SiO
O-Ring: Viton
Pneumatic Actuator: Assembly
Selection Recommendations
Stainless Steel Butterfly Valves
Control Valves (Regulating Valves)
Electric Control Valves (Electric Regulating Valves)
Pneumatic Control Valves (Pneumatic Regulating Valves)