Key Parameters Category Parameter Name Description & Typical Values Valve Specifications Valve Size 1/2" to 6" (DN 15 to DN 150) End Connections Flanged - ANSI Class 150, 300, 600. RF (Raised Face) or RTJ (Ring Type Joint) facings. Body Styles Globe Body - Standard. Angle Body - Also available for erosive/cavitating services or where a 90° turn is needed. Body Materials Carbon Steel (WCB) - Standard. Stainless Steel (CF8M/316) and other alloys are available. Pressure & Temperature Pressure Class ANSI Class 150, 300, 600 Temperature Range Standard packing: -40°F to 450°F (-40°C to 232°C). Extended ranges possible with high-temperature packing and designs. Internal Parts (Trim) Trim Types Quick-Open (Standard), Linear, Equal Percentage. Trim Designs Post-Guided (Standard) - For general service. Cage-Guided - For superior stability, reduced noise, and balanced trim option. Trim Characteristics Unbalanced Trim (Standard) - Requires higher actuator force. Balanced Trim (Optional) - For high pressure drop applications, reduces actuator force. Leakage Class Class II (standard metal seat). Class IV or Class VI (with optional soft seat). Trim Materials Stainless Steel (Standard), 316 Stainless Steel, Stellite, Hastelloy, and other alloys. Flow Capacity Flow Coefficient (Cv) Varies by valve size and trim. Consult specific Cv tables for accurate values. Example: A 2" N300 has a typical Cv range from ~10 to 70 depending on trim. Actuator (Typical) Type Fisher 657 (spring-and-diaphragm, direct-acting) or 667 (spring-and-diaphragm, reverse-acting). Action Air-to-Open (Fail Close) or Air-to-Close (Fail Open). Standard Signal 3-15 psig (0.2-1.0 bar) control signal.