Key Specifications & Parameters Parameter Specification Model SS-263 (with various trim options and actuator types) Valve Type Top-Entry, Segmented V-Notch Ball, Rotating Shaft Flow Characteristic Approximated Equal Percentage (inherent, due to the V-notch profile) Sizes 1 inch to 16 inches (DN 25 to DN 400) End Connections Flanged: ANSI Class 150, 300, 600, 900, 1500 (RF, RTJ) Butt Weld: Available Pressure Ratings ANSI Class: 150, 300, 600, 900, 1500 Max. Pressure: Dependent on size and class. Can handle very high pressures, e.g., up to 3700 psig (255 bar) for ANSI 1500 class. Temperature Range Standard: -50° to 800°F (-46° to 427°C) Extended: Options available for cryogenic services down to -320°F (-196°C) and high-temperature services up to 1200°F (649°C) with special components. Body Materials Standard: 316 Stainless Steel (CF8M) Common Options: Carbon Steel (WCB/WCC), Alloy 20 (CN7M), Hastelloy C, Duplex Stainless Steel, Monel, Inconel. Trim Materials Ball & Shaft: 316 Stainless Steel (standard) with hard-facing options (e.g., Stellite) for erosive service. Seat: Multiple Options: - Soft Seat: Reinforced PTFE (RPTFE), PEEK for tight shut-off and lower temperatures. - Metal Seat: 17-4PH SS, Stellite, for high temperatures and erosive services. Flow Capacity (Cv) Extremely high Cv values. Specific values depend on size and trim. (e.g., an 8" SS-263 can have a Cv over 2000). Rangeability Very High, typically 100:1 or greater. Leakage Class Soft Seat (PTFE, PEEK): ANSI Class IV (bubble-tight) Metal Seat: ANSI Class V Fire-Tested: Designs available to meet API 607/API 6FA fire test standards. Actuator Options Pneumatic: Piston actuators (e.g., 1061P) are standard for the high thrust requirements of the SS-263. Electro-Hydraulic: Design EH for precise digital control. Hydraulic: Also available. Accessories Positioners, limit switches, solenoid valves, supply pressure regulators, etc.