PTFE stainless steel plate pneumatic butterfly valve

‌Comprehensive information compilation of PTFE stainless steel plate pneumatic butterfly valve, combined with its technical parameters, market supply, and selection suggestions:
1、 Product Definition and Core Features
The PTFE stainless steel plate pneumatic butterfly valve is a corrosion-resistant valve with a valve body made of stainless steel (304/316L) material and a valve plate lined with PTFE/F46. It can be opened, closed or adjusted by driving the butterfly plate to rotate through a pneumatic actuator. Its core advantages include:
Corrosion resistance: Stainless steel valve body+PTFE lining, can withstand strong acid, strong alkali and organic solvent corrosion.
Bidirectional sealing: The soft sealing structure (F46 valve seat) achieves zero leakage (ANSI/FCI 70-2 Class VI).
Quick opening and closing: Pneumatic drive (0.4-0.7 MPa gas source) has a short response time and supports 4-20 mA signal adjustment.
2、 Key models and technical parameters
Common models
D671F-16P: Clamp type pneumatic butterfly valve, fully lined with PTFE, suitable for DN50~DN500.
D641F46-16C: Flange connection, fully lined with PTFE, resistant to acid and alkali corrosion.
Technical parameters
Parameter item specification range remarks
Some manufacturers support customization of DN3000 for nominal diameters ranging from DN40 to DN500
Pressure rating PN10~PN16 (ANSI 150LB) requires special design for high pressure
Suitable temperature -20 ℃~+150 ℃ (PTFE) instantaneous high temperature up to 180 ℃
The connection method is optional for clamp type (D671X) and flange type (D641F) American standard flanges

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