Technical Parameters Category Parameter Specification / Description General Model Series 252 Type Direct-Operated Pressure Reducing Regulator Pressure Ratings Maximum Inlet Pressure (P1) 150 psig (10.3 bar) for standard models. Outlet Pressure Range (P2) Adjustable: Commonly from 3" w.c. to 15 psig (0.75 kPa to 1.0 bar). Specific range is defined by the spring inside the regulator. Pressure Rating 150 psig (10.3 bar) Body Rating. Flow & Capacity Flow Capacity (Cv) Low, typically around 0.02 to 0.04 depending on the orifice size. Designed for small flows. End Connections 1/4" NPT or 1/2" NPT (Internal Pipe Thread) - Specified by the model suffix. Materials & Environment Body Material Aluminum Internal Parts Stainless Steel, Brass Seat Material Elastomer (e.g., Buna-N) or other materials for tight shut-off. Ambient Temperature Standard: -20°F to 150°F (-29°C to 66°C)
