Technical Parameters Parameter Specification Model Fisher V260 Type V-Ball Rotary Control Valve Flow Characteristic Equal Percentage (inherent from the V-notch profile) End Connections Flanged (ANSI Class 150 & 300); Lugged and Wafer-style bodies are also available. Body Materials Carbon Steel (WCB), Stainless Steel (CF8, CF8M), Alloy 20, Duplex Stainless Steel Ball & Stem Stainless Steel (standard), with hard-facing (e.g., Stellite) options for abrasive service. Seat Material Reinforced PTFE (RPTFE) is standard, providing ANSI Class VI shut-off. Other materials like UHMW-PE and metal seats are available. Temperature Range -40°F to 500°F (-40°C to 260°C) with standard RPTFE seats. Temperature range can extend with different seat materials. Pressure Rating ANSI Class 150: 275 psig (19 bar) ANSI Class 300: 720 psig (49.6 bar) Leakage Class ANSI Class VI (Bubble-tight) with non-metallic seats. Flow Capacity (Cv) Varies by size. Example (Class 150 Flanged): - 3 inch: ~ 290 - 6 inch: ~ 1150 - 8 inch: ~ 2050 Sizes (Pipe Size) 1" to 12" (DN 25 to DN 300)
