Technical Parameters Parameter Specification Model Fisher C1 Type Self-Operated Temperature Regulator Operating Principle Liquid-Filled Thermal System (Remote Bulb and Capillary Tube) Body Materials Cast Iron (Standard), Bronze, Ductile Iron, Carbon Steel End Connections Screwed (NPT), Flanged Size Range 1/2" to 2" (DN 15 to DN 50) Temperature Setting Range Various ranges available, e.g., 50°F to 250°F (10°C to 121°C), depending on bulb fill and spring. Pressure Rating Up to 250 psig (17 bar), depending on body material. Bulb Material Brass or Stainless Steel Capillary Tube Length Standard lengths available, e.g., 6 ft (1.8 m) or 10 ft (3 m).
