Technical Specifications / Parameters Parameter Specification / Description Model Series Fisher EZ (including variants such as EZ, EZ-H, EZ-L) Type Pilot-Operated Pressure Regulator / Pressure Reducing Valve Body Size & Config. Sizes: 2" through 8" (DN50 through DN200) End Connections: Flanged (ANSI Class 150 through 900, RF or RTJ), Butt-weld. Body Materials Carbon Steel (WCB), Ductile Iron, Stainless Steel (CF8M). Trim Materials Stainless Steel (standard), other alloys available. Pressure Ratings Inlet Pressure (P1): Up to 1440 psig (~100 bar) for standard models; specific models like the EZ-H can handle higher. Outlet Pressure (P2): Adjustable over a wide range, depending on the pilot and spring combination. Body Rating: ANSI Class 150 to 2500. Temperature Range Standard: -20°F to +150°F (-29°C to +66°C) Extended: Options available for temperatures as low as -65°F (-54°C) using weather covers or special pilots. Pilot Gas Supply Typically filtered and regulated from the main line. External supply options are available. Leakage Class Shutoff Class: ANSI/FCI 70-2 Class IV (standard), Class V or VI available with soft-seated trim. Noise & Flow Capacity Flow Capacity (Cg): Ranges from approximately 2000 to over 10,000, depending on size and trim. Attenuation: Designed for low noise operation; optional diffuser plates or trim can be specified for high-noise applications.
