Bell & Gossett Calibrated Circuit Setter Plus Calibrated Valve Instruction ManualĬircuit Setters are available in a wide range of sizes and styles to meet all your system demands.Bell & Gossett Circuit Setter Plus Valve 4' thru 12' Size Instruction Manual.Bell & Gossett Circuit Setter Plus Valve 4' thru 12' Submittal Sheet.Bell & Gossett Circuit Setter Plus Balance Valve 1/2' thru 3' Submittal Sheet.Bell & Gossett Circuit Setter Plus Balance Valve Curves.Bell & Gossett Circuit Setter Plus Calibrated Balance Valve Brochure.Bell & Gossett Hydronic Balancing Solutions Brochure.Valves can simply be pre-set using the B&G Circuit Setter Balance Valve Calculator, curve booklet G10091, or the System Syzer application for iPhone, iPad, or PC. This system balance method, developed by Bell & Gossett, assures optimum system flow balance at minimum pump operating horsepower. Since its introduction to the HVAC industry in 1968, the Bell & Gossett Circuit Setter has set the standard for proportionally balancing hydronic HVAC systems. The Bell & Gossett Circuit Setter Plus is a calibrated balance valve designed for pre-set proportional system balance.