SD641F46 cast steel manual and pneumatic dual-purpose fluoropolymer-lined three-way reversing flange ball valve (PFA/FEP optional)

SD641F46 manual pneumatic fluoropolymer-lined three-way flange ball valve

This product adopts a three-way flange ball valve, pneumatic actuator, and manual auxiliary operation structure. The current page has a diameter of DN40-DN600, a pressure configuration of PN16/Class150, a valve body field of WCB or 304 (CF8), and lining fields of PFA and FEP.

The three-way flow channel must be confirmed according to the actual sphere

A three-way ball valve can be used for reversing, diverting, or merging, but its actual function depends on the ball opening and valve position. This page no longer defaults to having all flow channel forms such as T and L. When inquiring, the connection relationship between the three interfaces at each workstation should be clearly defined.

How to choose lining for PFA and FEP?

The lining material should be determined based on the composition, concentration, temperature, and pressure of the medium. The current parameter field only lists PFA and FEP, so PTFE will no longer be used as the default lining for this product on this page.

How to understand the dual-use of manual and pneumatic?

Normal automatic operation is completed by pneumatic actuators, while manual actuators are used for on-site operation or maintenance under the allowable conditions of actual actuators. The safety positions and accessories for single acting, double acting, and gas loss should be confirmed according to control requirements.

Lining material can refer toPFA, FEP, and PTFE lining material selection instructionsFor more lining products, please refer toLining valve selection。

Frequently Asked Questions

Does this three-way ball valve support both T and L types by default?

Cannot default, should be confirmed according to the actual spherical flow chart and order requirements.

How to confirm the lining when switching corrosive liquids for SD641F46?

The composition, concentration, temperature, and pressure of the two media should be provided, and the lining layer and all liquid receiving parts of PFA or FEP should be checked; The compatibility and residual switching of the two media need to be confirmed, and PTFE cannot be directly added as an established configuration.

Is a pneumatic three-way ball valve necessarily suitable for continuous proportional adjustment?

Not necessarily, the valve flow channel, valve seat, and positioning control configuration need to jointly meet the corresponding working conditions.