[Fab] went with a simple butterfly valve design, similar to the throttle valve in most gasoline-powered cars. The butterfly vane rotates to vary the flow, turned by a small SG90 servo.

Viega North America has announced its new globe, wafer check and butterfly valves for its MegaPress and ProPress systems.

The plastic valve has an estimated 33% lower impact on climate change during the production phase compared to the metal valve. Throughout the entire lifecycle, the Butterfly Valve 565 requires an ...