Key Specifications / Parameters Specification Value / Description Product Name & Series Fisher GX Control Valve, Actuator size 225 Valve Type Sliding‑stem globe style control valve with matched pneumatic diaphragm actuator Actuator Size 225 (refers to the multi‑spring actuator model) Flow Characteristics Equal‑percentage or linear trim options Pressure Class / Rating Body pressure ratings follow GX series: up to ASME Class 300 / EN PN 25/40 (depending on body material and size) Sizes / Port Diameters GX series covers a range: e.g., DN15 to DN150 / NPS ½ to NPS 6; the 225 actuator is typically used for smaller to mid‑sizes Materials of Construction Body/bonnet options: carbon steel, stainless steel, duplex/alloy; trim selections include metal‑to‑metal or soft seat configurations Actuator Supply / Ambient Pneumatic actuator air supply pressures typically 4.0 to 6.0 bar (58–87 psig) for full capabilities; ambient temperature down to –46 °C (‑50 °F) standard, optional down to –60 °C (‑76 °F) Service Conditions General service (liquid/gas/vapor), corrosive service, low‑flow, noise/cavitation mitigation; modular trim availability Installation / Connections Flanged, welded, or threaded ends (depending on size and standard)