Technical Specifications Category Specification Model Type 846 Type Self-Operated Differential Pressure Regulator Function To maintain a constant differential pressure across a circuit or device. Power Source Self-Operated (Uses energy from the process fluid) Body Style Globe Valve Body Orifice Sizes Available in various sizes to match specific flow capacity (Cv) requirements. End Connections Screwed (NPT) or Flanged Body Materials Cast Iron (standard), Bronze, Ductile Iron, Cast Steel. Trim Materials Stainless Steel (standard). Diaphragm Material Buna-N (standard), EPDM, Viton available. Differential Pressure Set Point Range Field adjustable. Common ranges include 3 to 30 psig (0.2 to 2.1 bar) or 5 to 50 psig (0.3 to 3.4 bar). The specific range is determined by the spring installed. Maximum Inlet Pressure Typically 400 psig (28 bar) for a standard cast iron body. Temperature Range Standard with Buna-N diaphragm: -20°F to +180°F (-29°C to +82°C).
