Overview Resilient seat two-way valves provide control for HVAC system applications including chilled water, hot water, cooling tower water, and thermal storage systems. Product Specifications Dimensions (in.)Assembly--Length: 9-13/16 in.; Height: 20-5/16 in.; Width: 8-3/16 in.; Neck: 7 in.; Radius; 4-1/16 in. Dimensions (mm)Assembly--Length: 234 mm; Height: 515 mm; Width: 208 mm; Neck: 178 mm; Radius; 104 mm IncludesPosition indicator Weight (lb)647.4 lb Weight (kg)294.3 kg MountingANSI Flanged Voltage4-20 mA Shipping and Storage Temperature Range (F)-40 F to 250 F Shipping and Storage Temperature Range (C)-40 C to 121 C EnclosurePneumatic Ambient Temperature Range (F)Actuator-- -40 F to 176 F Ambient Temperature Range (C)Actuator-- -40 C to 80 C Connection TypeLugged Body Pattern2 way (NC, NC/NO; NSR) Pipe Size (inch)4 in. Pipe Size (DN)DN100 Maximum Differential Pressure Ratings (Close-off) (psi)50 psi Maximum Differential Pressure Ratings (Close-off) (kPa)345 kPa Capacity (Cv)at 60 degrees stroke--274 Cv; at 90 degrees stroke--841 Cv Capacity (Kv)at 60 degrees stroke--237 kvs; at 90 degrees stroke--727 kvs Valve ActionNormally Closed, convertible to Normally Open with Spring Return DCA Valve TypeButterfly Controlled FluidChilled or hot water with up to 50% Glycol. Not for use with steam or fuels. Materials (Body)Polyester-coated cast iron ASTM A126 Class B Materials (Seat)Peroxide-cured EPDM resilient seat Materials (Stem)416 Stainless Steel Flow CharacteristicModified Equal Percent ActuationPneumatic, 4-20 mA Servo, 80 psi spring return Static Pressure Rating (psi)250 psi Maximum Static Pressure Rating (kPa)1724 kPa Maximum Flange Bolts8, Flange Bolt Thread--5/8 in. -11 pitch Materials (Plug/Ball/Disc)Nylon 11-coated ductile iron (optional: Aluminum, bronze, and stainless steel)