Technical Parameters Parameter Value / Description Fisher Model Number 1V659905092 Type Pilot-Operated Pressure Reducing Regulator Valve Size (Pipe Size) 4 inch (4") Orifice Size Correlated to valve size (e.g., 4 inch) End Connections Flanged (Typically RF or RTJ) Pressure Rating (ANSI Class) Class 300 Body Material Carbon Steel (e.g., WCB) Trim Material Standard Trim (Typically 304 Stainless Steel) Diaphragm Material Typically Nitrile (Buna-N) for standard service. Max Inlet Pressure (P1) Up to 720 psig (50 bar) approximately (based on Class 300 rating). Outlet Pressure Range (P2) Determined by the spring range. Common examples: 20-125 psig, 50-250 psig, or other ranges. Must be confirmed from order records. Temperature Range Standard: -20°F to +150°F (-29°C to +66°C) with standard elastomers.
