XS643F46 Pneumatic cast steel lined fluorine flange plug valve (with locator, PFA/FEP optional)

XS643F46 Pneumatic fluoropolymer-lined Flange Plug Valve

XS643F46 adopts flange connection, lining plug structure and pneumatic actuator. The current page diameter is DN40-DN600, pressure is PN16/Class150, valve body material is WCB or 304 (CF8), and the lining parameters are clearly listed as PFA and FEP.

How to understand F46, FEP, and PFA?

F46 corresponds to FEP, and the current page also lists PFA as an optional lining. PFA and FEP are different materials and should be confirmed separately based on the medium, temperature, pressure, and product structure. The current parameters do not list PTFE as the default lining for this product, so the main text will no longer automatically expand materials such as PTFE, PO, PP, or PVDF.

Is having a locator equivalent to a regulating valve?

Not equal to. The locator is used to control the valve position of the actuator based on the control signal, but whether the valve is suitable for continuous flow regulation still needs to be judged based on the plug flow channel, sealing structure, allowable pressure difference, and actual flow characteristics. We cannot promise fixed adjustment accuracy or flow characteristics without relevant data.

How to configure pneumatic actuators?

Single acting or double acting actuators can be selected according to project requirements, and equipped with solenoid valves, limit feedback, filtering and pressure reducing devices, or locators. The actual gas source pressure, safe location for gas loss, explosion-proof requirements, and control signals shall be confirmed according to the executing mechanism and project control system.

See the lining material description for detailsDifferences in materials between PFA, FEP, and PTFEFor more plug valves, please refer toPlug valve manufacturer and selection。

Frequently Asked Questions

Is F46 in XS643F46 the same as PTFE?

No, F46 corresponds to FEP. The current page also lists PFA as a lining option.

Can it be used as a high-precision regulating valve with a locator?

We cannot make such a judgment. The locator only solves valve position control, and the overall adjustment performance also depends on the valve body flow channel, pressure difference, and operating conditions.

XS643F46 requires corrosion resistance. How to choose PFA and FEP according to the medium?

Please provide the composition, concentration, temperature, pressure, particles, and negative pressure of the medium, and verify the lining and other liquid receiving components of PFA or FEP; The PFA/FEP options listed in this product cannot be changed to PTFE without confirmation.