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.