Belimo B210+LRB24-SR : 2-Way 1/2" Characterized Control Valve (CCV), Cv 1.2, Stainless Steel Ball and Stem, Non-Spring Return Control Valve Actuator, 24VAC/DC, 45 in-lb, 2-10VDC (4-20mA) Proportional Control Signal, 90 Second Run Time, 5-Year Warranty