The butterfly valve and actuator assembly provides zero leakage and consumes up to 50% less energy.

The butterfly valve and actuator assembly provides zero leakage and consumes up to 50% less energy. Near Field Communication (NFC), along with BACnet, provide simplified set up and diagnostics, superior application data access and offer ease of installation.
Belimo
https://www.belimo.us
View this product at the New Products for Engineers Database.