Belimo B311 Valve

Valve, Ball, 1/2", NPT, 1.9 Cv, 3 Way, A-port Equal Percentage Flow, B-port Modified for constant common port flow, Nickel Plated Forged Brass Body with Stainless Steel Ball and Stem for Chilled or Hot Water (250 F Maximum) Applications, up to 60% Glycol Solution