Key Parameters Category Parameter Name Description & Typical Values Valve Specifications Valve Size 1" to 12" (DN 25 to DN 300) End Connections Flanged - ANSI Class 150, 300, 600, 900, 1500. RF or RTJ. Body Styles Globe (Standard), Angle (Excellent for abrasive services as flow directly exits). Body Materials Carbon Steel (WCB) - Standard. Stainless Steel (CF8M) and other alloys available. Pressure & Temperature Pressure Rating Up to ANSI Class 2500 depending on body size and type. The 1098H-EGR is rated for higher pressures. Temperature Range Standard: -50°F to 450°F (-46°C to 232°C). Extended ranges possible with special components. Internal Parts (Trim) Trim Design Cage-Guided, Balanced Plug - Standard. Flow Characteristics Equal Percentage (Standard), Linear, Quick Open. V-notch trim for severe services. Trim Materials Stainless Steel (Standard). Hardened Steels (e.g., 17-4PH, 440C), Stellite, and Tungsten Carbide for extreme abrasion. Leakage Class Class II (metal-to-metal, standard). Class IV (with optional soft seat, not for high temps). Actuator Type Spring-and-Diaphragm Pneumatic Actuator. Action Air-to-Open or Air-to-Close (field-reversible). Standard Signal 3-15 psig (0.2-1.0 bar). Level Controller Type Displacer and Torque Tube Assembly (e.g., Fisher 2500, 3500, or 3500H series). Mounting Internal (directly on the vessel) or External (in a separate chamber).
