Technical Parameters Parameter Specification Model Fisher V250 Vee-Ball Valve Type Rotary V-Notch Ball Control Valve Flow Characteristic Equal Percentage (inherent from the V-notch profile) Shut-Off Class ANSI Class VI (Bubble-tight) with standard non-metallic seats. End Connections Flanged (ANSI Class 150 & 300) Body Materials Carbon Steel (WCB), Stainless Steel (CF8, CF8M) Ball & Stem Material Stainless Steel (standard) Seat Material Reinforced PTFE (RPTFE), Ultra-High Molecular Weight Polyethylene (UHMW-PE) Temperature Range -40°F to 400°F (-40°C to 204°C) with standard polymeric seats. Pressure Rating ANSI Class 150: 275 psig (19 bar) ANSI Class 300: 720 psig (49.6 bar) 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)
