Overview Reviews Product Description Belimo ZoneTight (QCV), 3/4", 2-way, Cv 9.8 |Valve Actuator, Electronic fail-safe, AC/DC 24 V, 2...10 V, Normally Closed, Fail-safe position Closed, modulating Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Belimo Belimo Z2075QS-K+CQKB24-SR-RR Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments