Technical Parameters Parameter Specification Product Name Fisher Whisper™ NXG Trim Type Multi-Stage, Noise Attenuation & Anti-Cavitation Trim Primary Function Noise Reduction & Cavitation Control Noise Reduction Capability Up to 25 dBA or more, depending on application conditions. Pressure Drop Capability Capable of handling very high pressure drops (ΔP), often in excess of 1000 psi. Compatible Valve Bodies Fisher easy-e™ ES, G-Series, 1050/1051, and other cage-style globe valves. Trim Construction Stacked disks/plates with precision-engineered micro-perforations and flow channels. Wetted Materials Stainless Steel (Standard), Alloy Steel, Stellite-hardened for erosive services. Size Range Designed to fit valve sizes from 1" to 12" (DN 25 to DN 300) and larger. Temperature Limits Limited by the valve body and gasketing, typically up to 800°F (427°C) or more. Flow Capacity (Cv) Varies by size and specific NXG trim design. Provides a balanced Cv for its noise reduction class.
