Overview VBN3 Three-Way Control Ball Valves control hot/chilled water with glycol solutions up to 50% in heating, ventilating, and air conditioning (HVAC) systems to provide two-position or modulating functions. Ordered with/without factory-mounted actuators. Features Sizes from 1/2 to 2-1/2 inches with internal (female) NPT connections. Equal percentage or linear flow characteristics. Reduced B-port Cv for constant loop flow. Choice of four, factory-installed actuation control schemes: Floating, Modulating (2-10 V), Spring Return 2-Position, Spring Return Modulating/Floating. Field configurable for normally open or normally closed fail-safe position. Removable manual operating handle to control valve during installation or in an event of power failure. ANSI Class IV seat leakage specification (0.01% of Cv). Optional NEMA 3R (IP54) rated enclosure for outdoor applications. Actuator can be mounted on the valve in any of four positions. Wide Cv choices from 0.33 to 109. Valve installs in a globe valve "T" pattern, no extra elbows or piping required. Field-serviceable stem assembly. Nickel-chrome plated brass ball and stem. Mixing or Diverting control. Product Specifications Maximum Safe Operating Pressure (psi)360 psi Maximum Safe Operating Pressure (kPa)2482 kPa EnclosureNone Connection TypeFemale NPT Body PatternThree-way Pipe Size (inch)2 1/2 in. Pipe Size (DN)DN65 Fluid Temperature (C)-30 C to +121 C Fluid Temperature (F)-22 F to +250 F Maximum Differential Pressure Ratings (Close-off) (psi)40 psi Maximum Differential Pressure Ratings (Close-off) (kPa)276 kPa Capacity (Cv)74 Cv Capacity (Kv)64 kvs Valve TypeControl Ball Valve Controlled FluidChilled or hot water with up to 50% Glycol. Not for use with steam or fuels. Materials (Body)Brass Materials (Seat)Teflonâ„¢ seals with EPDM O-rings Materials (Stem)Brass Flow CharacteristicEqual Percentage (A-AB); Linear (B-AB) ActuationNo pre-assembled actuator Materials (Plug/Ball/Disc)Nickel-plated brass ball Materials (Flow Control Insert)Noryl LeakageANSI Class IV (0.01% of Cv maximum)