Electric fluoropolymer-lined butterfly valve D971F-16C

D971F-16C electric fluoropolymer-lined butterfly valve

D971F-16C adopts electric drive, clamp connection, and fluoroplastic lining structure. The current page has a diameter of DN50-DN700, pressure of PN1.6-PN2.5MPa, and material fields of WCB lining FEP/PTFE and stainless steel 304. The specific lining and metal materials will be determined according to the order.

FEP and PTFE cannot be mixed into the same material

FEP and PTFE both belong to fluorinated polymers, but their materials, processing methods, and structural adaptations are different. When selecting, it should be clear which type of lining is actually used, and it cannot be assumed to be interchangeable just by writing "fluorine lining".

How to choose a fluoropolymer-lined butterfly valve?

Need to confirm the medium name and concentration, working temperature, pressure, diameter, matching flange, and lining material. For conditions involving particles, strong erosion, or high-frequency throttling, it is necessary to verify the wear resistance of the lining layer and the butterfly plate structure.

How to configure electric control?

The power supply, switch type or regulating type, control signal, valve position feedback, and explosion-proof requirements of the actuator shall be determined according to the project. 4–20mA, Modbus, and specific explosion-proof levels are not default configurations for all products.

The difference in lining materials can be found inSelection of lining materials for PFA, FEP, and PTFESee more butterfly valvesButterfly valve selection。

Frequently Asked Questions

Does D971F-16C support 4–20mA by default?

Not default, corresponding adjustable actuators and control modules need to be configured.

Can FEP and PTFE be directly replaced?

No, the selection should be based on the medium, temperature, pressure, and lining manufacturing structure.

Is fluoropolymer-lined butterfly valve suitable for long-term throttling?

Not necessarily, the butterfly plate, lining, pressure difference, and medium erosion should be checked.