Adjustable pneumatic triple eccentric flange butterfly valve

TD643W Pneumatic Three Eccentric Flange Regulating Butterfly Valve

TD643W adopts pneumatic drive, flange connection, and three eccentric butterfly plate structure. The current page diameter is DN40-DN600, and the pressure configurations are PN16, Class150, and JIS10K.

Why is this page only written about flange connections?

The connection code 4 in the model corresponds to the flange type, so the old text's description of "clamp connection can also be used" is deleted. If a clamp structure is required, the corresponding clamp connection model should be selected.

Triple eccentricity adjustment performance

The three eccentric structure is beneficial for improving the opening and closing contact state of the sealing pair, but the actual flow characteristics, allowable pressure difference, and adjustment accuracy still need to be supported by product data, and absolute descriptions such as "no contact throughout the entire process" cannot be used.

How to configure the locator?

During continuous adjustment, configure the locator according to the control system and confirm the air source pressure, input signal, valve position feedback, and actuator torque. 4–20mA is one of the common control configurations, but the actual locator shall prevail.

More flange butterfly valves are availableSelection of flange butterfly valve。

Frequently Asked Questions

Can TD643W be directly used as a butterfly valve?

No, the model connection code 4 corresponds to the flange type.

Is the triple eccentric butterfly valve suitable for all precise adjustment conditions?

No, it should be determined based on the characteristics of the butterfly plate, pressure difference, and control system.

Is the default locator 4–20mA?

Not necessarily, the actual locator model and control system should prevail.