Valve,Assembly, 3 Way B-AB Normally Open, 1 1/2", NPT, 0-10Vdc, 2-10Vdc, 4-20mA with 500 ohm resistor, 24Vac, 32 Cv 3 Way Equal Percentage Flow Port A to AB, Linear Flow Port B to AB, Brass Body with Plated Brass Trim Ball Valve Spring Return Modulating, Floating or Two-Position SPDT Direct Coupled Actuator with NEMA 3R Enclosure