Technical Parameters Parameter Specification Model Fisher V280 Vee-Ball Valve Type Severe Service Rotary V-Notch Ball Control Valve Flow Characteristic Equal Percentage 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 Material Stainless Steel with Hardened Coatings (e.g., chromium carbide) available for extreme abrasion. Stem Material Stainless Steel 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, 8"): Cv ~ 2050 Sizes (Pipe Size) 3" to 16" (DN 80 to DN 400)
