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 Item TypeProduct EnclosureNone Connection TypeFemale NPT Body PatternTwo-way Pipe Size (inch)1 1/2 in. Pipe Size (DN)DN40 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)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)316 Stainless Steel Flow CharacteristicLinear ActuationNo pre-assembled actuator Materials (Plug/Ball/Disc)316 stainless steel Materials (Flow Control Insert)Noryl LeakageANSI Class IV (0.01% of Cv maximum)