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.
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