Marflow cuts commissioning time for hydronic systems

Marflow

Marflow Hydronics’ single-station balancing (SSB) methodology provides a fast and effective approach to balancing variable-flow fan-coil and chilled-beam systems. It is an accurate alternative to proportional balancing, which is not suitable for variable-volume systems.

Used with manifold systems fitted with pressure-independent valves, SSB uses a ‘subtraction’ technique to identify problem valves. It is based on knowing the design flow rate for each valve and, hence, the total flow rate for a group of FCUs or chilled beams.

Isolating a correctly functioning valve will have a predictable effect on the total flow for the remaining valves. An unexpected result indicates a problem.

To identify problem circuits with conventional proportional balancing, the entire system has first to be balanced. When problems have been resolved, the entire system has to be balanced again — a lengthy process that can affect the whole construction schedule.

For more information on this story, click here: Oct09, 151
Related links:
Related articles:



modbs tv logo

More refrigerant bans possible, says government

The government could tighten up the rules that restrict the use of global warming refrigerant gases including speeding up phase-out programmes and introducing new bans, according to a spokesman from the Department for Environment, Food and Rural Affairs (DEFRA).

Baxi research suggests schools strongly support heat decarbonisation

A survey conducted by Baxi of 200 state school estates managers, consultant engineers and M&E contractors has found that while enthusiasm for Net Zero and support for low carbon heating systems in schools is thriving, persistent barriers remain.