FISHER™ 8590
Specifications:
Model: FB Pressure Regulator
Type: Pilot-Operated
Functions: Pressure Reducing, Backpressure Control, Relief
Sizes & Connections:
Valve Size: 1" to 8" (DN 25 to DN 200)
Pressure Class: ANSI 125, 150, 300, 600
End Connections: Flanged (RF, RTJ)
Performance & Ratings:
Pressure Rating (Example):
ANSI 150: 275 psi (19 bar) @ 100°F (38°C)
ANSI 300: 720 psi (50 bar) @ 100°F (38°C)
Temperature Range: -20° to 450°F (-29° to 232°C) [Standard; special packs available for extended range]
Set Pressure Range: Varies widely based on the specific pilot and spring combination.
Accuracy (Droop): High, typically 2% to 5% of the set point.
Flow Coefficient (Cv): High Cv values. Specific values are determined by valve size and trim.
Pilot Options:
Proportional Pilot: Standard for most pressure reducing and backpressure applications.
Bleed Pilot (Unloader): For applications with unstable loads or specific cycling requirements.
Solenoid Stop Pilot: Allows for remote shutoff of the regulator.
Dome-Loaded Pilot: Uses an external air supply for very precise set point control.
Materials of Construction:
Body: Carbon Steel (WCB) [Standard], Stainless Steel (CF8/CF8M), Ductile Iron.
Trim (Plug, Seat): 316 Stainless Steel (standard), with optional hardened trim for erosive service.