Overview Reviews Product Description ZoneTight™ (QCV), 1", 3-way, Cv 4.4 |Valve Actuator, Electronic fail-safe, AC/DC 24 V, On/Off, 1 x SPST Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Belimo Belimo Z3100QS-J+CQKX24-S Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments