Hydronic balancing of radiators Hydronic balancing of a heating system: three heating subcircuits with radiators, thermostatic valves and circulation pump Features - balancing of a heating system - presettable valves - connection to external heating circuit possible - water connections made using quick-release couplings Learning objectives/experiments - variable pipework resistance - familiarisation with a preset balancing valve - familiarisation with a preset thermostatic valve - familiarisation with a differential pressure overflow valve Specification [1] hydronic balancing of a heating system [2] pipe elements commercially standard components in heating and sanitary engineering [3] 6 radiators with thermostatic valve, bleed valve and adjustable lockshield valve [4] 3 subcircuits each with adjustable balancing valve in the feed and return flow [5] hydronic balancing can be carried out without tools [6] water connections using quick-release couplings for optional connection to an external heating circuit [7] expansion vessel, boiler safety group according to DIN 4751 [8] differential pressure overflow valve ensures pressure equalisation [9] flow measurement using rotameter 7 rotameters Technical data Pump - power consumption: 60W - max. flow rate: 46L/min - max. head: 4m 6 radiators with thermostatic valves: 400x400mm 6 balancing valves: PN 16 Boiler safety group according to DIN 4751: 2,5bar Expansion vessel: 8L, admission pressure: 0,5bar Measuring ranges - flow rate: 1x 30...320L/h, 6x 50...650L/h 230V, 50Hz, 1 phase 230V, 60Hz, 1 phase LxWxH: 2250x750x1790mm Weight: approx. 210kg