Q641F46/PFA Pneumatic Cast Steel fluoropolymer-lined Flange Ball Valve (PFA/FEP optional)

Q641F46/PFA Pneumatic Steel lined Fluorine Flange Ball Valve

This product adopts a pneumatic actuator, flange connection, and lined ball valve structure. The current page diameter is DN25-DN800, pressure is PN16/Class150, valve body field is WCB or 304 (CF8), and lining field is listed as PFA and FEP.

Lining material confirmed according to parameters and order

The current page parameters clearly list PFA and FEP, so the main text will no longer use PTFE or other plastic materials as the default lining for this product. The actual material should be confirmed based on the composition, concentration, temperature, pressure, and manufacturing structure of the medium.

What are the pneumatic accessories?

Single acting or double acting actuators, solenoid valves, filtering and pressure reducing devices, limit feedback or locators can be configured according to project needs. 4–20mA is only applicable when configuring the corresponding locator and cannot be used as the default function of the pneumatic ball valve body.

Is it suitable for continuous adjustment?

It cannot be judged solely based on the configuration locator. Ordinary ball cores are mainly used for opening, closing, and cutting. If continuous adjustment is required, it is also necessary to confirm the applicability of the ball flow channel, valve seat, allowable pressure difference, and lining under throttling conditions.

Lining material referenceDifferences in materials between PFA, FEP, and PTFEFor more products, please refer toLining valve selection。

Frequently Asked Questions

How to confirm whether you have received PFA or FEP lining when ordering Q641F46/PFA?

The actual selected lining material should be specified in the order and configuration table, and the model suffix and corresponding information should be checked. PFA and FEP options are not equivalent to PTFE configuration, and different material names cannot be considered synonymous.

Does the pneumatic ball valve support 4–20mA by default?

Not default, only established when the locator and corresponding control module are actually configured.

Can PFA and FEP be replaced directly without considering temperature and medium?

No, the selection should be based on the compatibility of the medium, temperature, pressure, and product structure.