Key Parameters Category Parameter Description / Typical Values Pressure & Temperature Maximum Inlet Pressure Varies with body material and size; common ratings include ANSI Class 150 and 300. Outlet Pressure Range Adjustable via spring change. Various spring ranges are available to cover common setpoints for pressure reduction. Temperature Range Standard: up to 450°F (232°C). Dependent on bellows material and internal seals. 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. Bellows Material Stainless Steel (standard). Actuator Type Self-operated, Spring-loaded, Side-mounted Diaphragm Actuator. Leakage Control Seal Type Integral Bellows Seal Cartridge (standard). Also typically includes a secondary gland packing.
