FQ41F46 cast steel fluoropolymer-lined variable diameter discharge flange ball valve (PFA/FEP optional)

FQ41F46 steel lined fluorine discharge variable diameter ball valve

This product adopts a flange connection, variable diameter flow channel, and lined ball valve structure. The current page diameter is DN40-DN500, pressure is PN16/Class150, valve body field is WCB or 304 (CF8), and lining field is listed as PFA and FEP.

How to choose a variable diameter feeding structure?

When different diameters are used at both ends of the valve, the size and installation direction of the ends should be confirmed based on the container outlet, downstream pipe diameter, medium viscosity, particle size, and actual flow requirements. It cannot be uniformly stipulated that 'the small end must be connected to the tank, and the large end must be outward'.

Does the variable diameter structure necessarily not block?

I cannot guarantee. The risk of blockage also depends on the viscosity of the medium, crystallization, particle size, sedimentation tendency, as well as the structure of the valve chamber and spherical flow channel, and should be judged based on the specific material characteristics.

Lining material

The current page parameter columns include PFA and FEP. The specific lining needs to be confirmed based on the medium, temperature, and pressure. This page does not use PTFE or other materials as a unified default configuration.

More fluoropolymer-lined products can be found atLining valve selection。

Frequently Asked Questions

Will the discharge variable diameter ball valve not accumulate material?

This cannot be guaranteed as the actual situation depends on the properties of the medium, the flow channel, and the installation method.

Can the size and orientation be installed freely?

The installation direction should be determined according to the device interface, medium flow direction, and actual product design.

FQ41F46 is used for reactor feeding. How to choose between PFA and FEP?

The composition, concentration, temperature, pressure, particles, and cleaning conditions of the medium inside the kettle should be provided, and the lining layer should be checked against other liquid receiving components; The existing options of PFA/FEP cannot be directly used as the supply configuration for PTFE.