Key Parameters Category Parameter Description / Typical Values Pressure & Temperature Maximum Inlet Pressure Varies with body material and size; typically up to 400 psig (28 bar) for steam. Outlet Pressure Range Adjustable via spring change. Various spring ranges are available to cover common setpoints. Temperature Range Standard: up to 450°F (232°C). Dependent on internal seals and materials. Size & Connections Pipe Size 1/2 inch (DN15) to 2 inches (DN50). End Connections Screwed (NPT) or Flanged. Flow Capacity Flow Coefficient (Cv) Moderate Cv values suitable for small to moderate line sizes. Materials Body Material Ductile Iron (standard), Cast Steel, Stainless Steel. Trim Stainless Steel. Actuator Type Self-operated, Spring-loaded, Side-mounted Diaphragm Actuator.