HL 305 Hydronic balancing of radiators
Hydronic balancing is used to limit the amount of water which is calculated for each radiator. Balancing ensures that all radiators can be supplied with hot water at all operating points according to their thermal requirement. The balancing is performed using adjustable lockshield valves.
The trainer uses commercially available components to implement three heating subcircuits with radiators, thermostatic valves and a circulating pump. All three subcircuits can be shut-off individually. Once filled, the system is independent of the water mains or feed flow and return flow pipe connections. However, it can be operated in conjunction with a heating circuit.
- balancing of a heating system
- water connections made using quick-release couplings
Pump
- power consumption: 60W
- max. flow rate: 60L/min
- max. head: 4m
6 balancing valves: PN 16
Measuring ranges
- flow rate: 1x 30…320L/h, 4x 50…640L/h
- temperature: 1x -50…300°C
230V, 50Hz, 1 phase
230V, 60Hz, 1 phase
- trainer for heating and plumbing
- 6 radiators with thermostatic valve, bleed valve and adjustable lockshield valve
- expansion vessel, safety group according to DIN 4751, overflow valve
- 5 rotameters
- 1 surface thermometer for temperature measurement at radiator inlets and outlets
- water connections using quick-release couplings, diameter inside 13mm, for optional connection to an external heating circuit
- variable pipework resistance
- balancing valve
- preset thermostatic valve
- differential pressure relief valve
