Pneumatic stainless steel lined fluoropolymer proportional control butterfly valve

TD671F46-16P Pneumatic fluoropolymer-lined Proportional Adjustment Clamp Butterfly Valve

The TD671F46-16P adopts a pneumatic actuator, clamp connection, and fluoropolymer-lined butterfly valve structure. The current diameter is DN50-DN1200, and the main material is 304/316L. The lining can be configured as PFA, FEP, or PTFE. Valve positioner can be configured for proportional control.

Why should the model be TD671F46 instead of TD971F46?

According to the valve model coding rules, the pneumatic transmission code is 6, and the electric transmission code is 9. This product explicitly uses a pneumatic actuator, therefore the model is represented by TD671F46-16P, which is consistent with the pneumatic clamping structure.

How to achieve proportional adjustment?

After receiving the signal from the control system, the positioner adjusts the position of the pneumatic actuator to change the opening of the butterfly plate. 4–20mA is one of the common control schemes, and the actual input and output signals, feedback methods, and communication functions should be confirmed according to the equipped locator.

What should be paid attention to when adjusting the working conditions of fluorine lining?

During continuous throttling, attention should be paid to pressure difference, flow rate, and the erosion of the lining and butterfly plate by the medium. The selection of PFA, FEP, and PTFE should be determined based on the medium, temperature, and specific product structure.

For more pneumatic products, please refer toSelection of pneumatic valves; see fluorine lining materialSelection Instructions for PFA, FEP, and PTFE。

Frequently Asked Questions

Is TD671F46-16P a pneumatic or electric butterfly valve?

It is a pneumatic butterfly valve, and the 6 in the model corresponds to pneumatic transmission.

Does proportional adjustment require the configuration of a locator?

Corresponding valve position control devices are required, and the specific locator and signal mode are determined according to the control system.

Are PFA, FEP, and PTFE the same material?

No, the three need to be selected separately according to the medium, temperature, and manufacturing structure.