Overview The VBN2 Two-Way Control Ball Valves control hot and chilled water in HVAC systems to provide two-position or modulating functions. Order them with or without factory-mounted non-spring return or spring return direct-coupled actuators. Features Sizes from 1/2 to 3 inches with internal (female) NPT connections. Equal percentage or linear flow characteristics. 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. Field-serviceable stem assembly. Wide Cv choices from 0.38 to 266. Nickel-chrome plated brass or 316 stainless steel ball and stem. Product Specifications Maximum Safe Operating Pressure (psi)360 psi Maximum Safe Operating Pressure (kPa)2482 kPa EnclosureNone Connection TypeFemale NPT Body PatternTwo-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)100 psi Maximum Differential Pressure Ratings (Close-off) (kPa)689 kPa Capacity (Cv)55 Cv Capacity (Kv)47 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)316 Stainless Steel Flow CharacteristicEqual Percentage ActuationSpring Return Two Position, 24 Vac Materials (Plug/Ball/Disc)316 stainless steel Materials (Flow Control Insert)Noryl LeakageANSI Class IV (0.01% of Cv maximum)