This Powermite 599 MT Series Valve Assembly features a 24V, non-spring return, electro-mechanical actuator with 0-10V or 4-20 mA proportional control. The 1/2 in. line size, 2-way normally open assembly has a 1.6 Cv flow rate, brass trim, FxF connection, and a modified equal percentage flow characteristic. The assembly is ANSI Class 250 with a Class IV (0.01% of Cv) leakage rate. A typical application of the Powermite 599 Assembly is the control of hot or chilled water.