Technical Specifications Category Specification Type Pneumatic Displacer Level Controller Input Liquid level (buoyancy force) Output 3-15 psig (0.2-1.0 bar) Air Supply 20-35 psig (1.4-2.4 bar) clean, dry air Accuracy ±1% of span Span Ranges Various displacer lengths available Temperature Range Standard: -40°F to 450°F (-40°C to 232°C) High-temp: Up to 850°F (454°C) with special options Process Connections 2" NPT standard; 3" NPT and flanged options available Chamber Materials Carbon Steel, Stainless Steel Displacer Materials Stainless Steel, Hastelloy, other alloys Torque Tube Materials Various alloys for different service conditions