Technical Parameters Parameter Specification Model Fisher 2625 Type Constant Pressure, Pneumatic, Pressure-Reducing Regulator Function Non-Relieving or Relieving (standard) Connections (NPT) 1/4 in., 3/8 in., 1/2 in. Body Materials Cast Iron (Standard), Ductile Iron, Stainless Steel Internal Materials Buna-N, Stainless Steel, Brass Maximum Inlet Pressure 400 psig (27.6 bar) Outlet Pressure Range Spring Ranges available, e.g., 3-15 psig (0.2-1.0 bar), 3-27 psig (0.2-1.9 bar), 6-30 psig (0.4-2.1 bar), 10-60 psig (0.7-4.1 bar), etc. Temperature Limits -20°F to 180°F (-29°C to 82°C) with standard Buna-N elastomers. Flow Capacity (Cv) Approximately 1.8 (for a 1/2" NPT size). (Note: Cv varies slightly by size and configuration). Leakage Bubble-tight shut-off (ANSI Class IV) for the main regulator. Minimal internal leakage to vent in relieving mode. Mounting Panel mount (bracket required) or in-line. Standards Complies with CE, PED, and other international standards depending on specific model and materials.
