Key Parameters Category Parameter Description / Typical Values Input & Control Control Signal 4-20 mA DC. Control Function Electronic setpoint for pressure reduction. Pressure Ratings Maximum Inlet Pressure (P1) 400 psig (28 bar). Outlet Pressure (P2) Range Determined by the internal pilot spring. Adjustable via the 4-20 mA signal across the spring's range. Capacity Flow Coefficient (Cv) High Cv values, similar to other regulators in its size class (e.g., a 2" size has a Cv of ~65). Size & Connections Pipe Size 3/4 inch to 4 inches. End Connections Threaded (NPT) or Flanged. Materials Body Material Cast Iron. Internals Stainless Steel. Electrical I/P Transducer Air Supply Requires a clean, dry instrument air supply (typically 20-100 psig).