Technical Specifications Category Specification Type Self-Operated, Spring-Loaded Pressure Reducing Regulator Service Steam, Air, Industrial Gases (e.g., N2, CO2) Size & Connections 2 Inch NPT (National Pipe Thread) Other sizes (e.g., 1", 1.5", 3") are available in the C404 series. Maximum Inlet Pressure (P1) 400 psig (28 bar) Outlet Pressure (P2) Range Adjustable. Specific range depends on the spring used. Example Spring Ranges: 10-60 psig, 50-150 psig, etc. Maximum Temperature 406°F (208°C) - Suitable for saturated steam service at corresponding pressures. Body Materials Ductile Iron (Standard), Cast Steel Trim Materials Stainless Steel (standard) Actuator Type Direct-Acting, Spring-Diaphragm Leakage Class ANSI Class IV (Metal-to-Metal Seat)
