Technical Parameters Category Parameter Specification / Description General Model 546S Type Pilot-Operated Pressure Reducing Regulator (Steam) Pressure & Temperature Body Pressure Rating (ANSI) ANSI Class 125, 150, 250, or 300 (depending on body size and order). Maximum Inlet Pressure (P1) Varies with body class; can be up to 600 psig (41 bar) or higher for certain classes. Outlet Pressure Range (P2) Wide range, adjustable via the pilot spring. Common ranges from 10 to 250 psig (0.7 to 17 bar). Temperature Range Suitable for saturated and superheated steam temperatures. Flow & Sizing Flow Capacity (Cv) High. Ranges from ~5 to over 200+, depending on the valve size (e.g., 1/2", 1", 2", 3"). End Connections Flanged (RF, RTJ) or Screwed (NPT). Construction & Materials Body Materials Cast Steel (WCB) as standard for steam service. Trim Materials Stainless Steel. Pilot Valve 546 Pilot configured for steam service. Options Pilot Options May include a strainer to protect the pilot from pipeline scale and debris, which is crucial in steam systems.
