Z3050QPF-H+CQKB24-S-RR - Belimo
USA Market Products

ZoneTight™ (QCV), Press Fit, 1/2", 3-way, Cv 2.7 |Valve Actuator, Electronic fail-safe, AC/DC 24 V, On/Off, 1 x SPST, Normally Closed, Fail-safe position Closed