Key Parameters Category Parameter Description / Typical Values Valve Body & Size Valve Body Style Double-port, top-and-bottom guided, balanced globe valve. Size Range 1 inch (DN25) to 12 inches (DN300). End Connections Flanged (ANSI Class 150 to 2500; PN ratings), Screwed (NPT), Butt-weld. Face-to-Face Complies with ISA S75.08 / IEC 60534-3-1 standards. Pressure & Temperature Pressure Rating Available in a wide range, from ANSI Class 150 to Class 2500. Temperature Range Standard: -20°F to +450°F (-29°C to +232°C). Extended ranges available with special materials and designs (e.g., -450°F to 1100°F / -268°C to 593°C). Flow Characteristics Flow Characteristics Linear, Equal Percentage (via characterized plugs). Flow Coefficient (Cv) A wide range of Cv values available based on trim size and port diameter. Leakage Class Leakage Class ANSI/FCI 70-2 Class II (Standard for double-port design). Class IV or better is achievable with special lapping or single-seat configurations. Materials Body & Bonnet Carbon Steel (Standard), Stainless Steel, Alloy Steel, Chrome-Moly and other alloys. Trim Standard Trim: 17-4PH Stainless Steel. Hardened Trim: Stellite, 440C Stainless Steel for erosive/cavitating services. Actuator Actuator Type Typically paired with Fisher 657/667 Diaphragm Actuators or piston actuators for high-thrust requirements.