Key Specifications / Parameters Specification Detail Valve Series Fisher GX Control Valve & Actuator System Valve Body Size DN 25 (nominal ~25 mm / ~1″) Pressure Ratings EN: PN 10 / 16 / 25 / 40 (flanged) ASME: Class 150 / Class 300 (flanged) End Connections Raised‑face flanged (EN 1092‑1 or ASME B16.5) Flow Characteristics Equal‑percentage or linear trims Shut‑off Classes Standard metal‑to‑metal: Class IV; optional upgrades: Class V or soft‑seat Class VI Body/Bonnet Materials Options include carbon steel, stainless steel, duplex and alloy materials Service Capabilities Liquids, gases, vapours; general service, corrosive service, low‑flow, noise/cavitation control Actuator/Accessories Multi‑spring pneumatic actuator integrated; digital or analog positioner support Face‑to‑Face Dimensions Compliant with EN 558‑1 for DN sizes and ANSI/ISA standards for ASME builds Special Features Flow‑up standard, port‑guided or stem‑guided plug options, compact structure for small‑bore service