Belimo's advanced butterfly valve comes with the PKR electronic fail-safe actuator for enhanced control. The durable electronics, simple configuration software, BACnet communication, and dependable super capacitor technology is the most economical and effective solution for critical applications. Replacement of legacy pneumatic actuators is straightforward, eliminating problematic battery back-up modules or expensive industrial actuators. This product saves energy with up to 80% less power consumption than currently available solutions. Its application has flexibility with a fail-safe function and universal power supply input from 24 to 240 Vac (24 to 125 Vdc).