Specifications: Valve Size: 1" to 8" (DN 25 to DN 200) Pressure Class: ANSI 150, 300 End Connections: Flanged (RF, RTJ) Temperature Range: -20° to 400°F (-29° to 204°C) [Dependent on seat material] Performance & Flow Characteristics: Shut-Off Class: ANSI Class VI (Bubble-tight) Flow Characteristic: Approximately Equal Percentage (inherent) Rangeability: Up to 200:1 Flow Coefficient (Cv): High Cv values. Specific values are determined by valve size and V-notch angle (e.g., 15°, 30°, 45°, 60°, 75°, 90°). Materials of Construction: Body: Cast Iron (epoxy coated standard), Ductile Iron, Carbon Steel (WCB), Stainless Steel (CF8M). Ball: 316 Stainless Steel (standard) Shaft: 17-4PH Stainless Steel (standard) Seat: Reinforced PTFE (RPTFE) (standard), UHMW-PE, PEEK. Actuator & Accessories: Actuator Types: Pneumatic: Fisher 1051/1052 SRD Piston Actuators (for on-off and modulating), Fisher 657/667 Diaphragm Actuators. Electric: Electric Motor Actuators. Positioner: A Fisher FIELDVUE™ DVC digital positioner is highly recommended for precise modulating control and diagnostic capabilities. Accessories: Limit switches, solenoid valves, filter regulators, etc.
