Prefabricated valve assemblies from Marflow Hydronics have helped reduce installation and commissioning time for fan-coil systems at two office blocks in the Royal Court development in Winchester. Governator assemblies, developed for use with fan coils, were selected by M&E contractor Dodd Group following technical appraisals by its in-house designers.

Armstrong has extended its range of commissioning valves and now offers easy-to-use valves from DN15 to DN300. The additions to the ARMflo CBV-G range are of ductile iron in sizes from DN65 to DN300. The multi-turn micrometer-style handle enables precise adjustment to design flow rates with a high degree of reliability.

Substantial reductions in both installation and commissioning time have been achieved in a project at Calderstone’s Hospital in Lancashire using Tour & Andersson’s TA-HUB to provide centralised balancing of several terminal units at a time.

Pegler Yorkshire’s Proflow Venturi range of valves is described as offering a unique and modern approach to commissioning heating and chilled-water systems.

Rather than delivering buildings that are more comfortable and use less energy, variable-flow systems can do quite the opposite without care in the selection and choice of control valves. Martyn Neil explains.

Commissioning is a totally natural process and should be our first step towards sustainable buildings, according to Mike Malina.

Marflow Hydronics has developed a remote-commissioning concept that enables flow-regulation valves to be adjusted remotely from a central PC or other control device without the commissioning engineer needing to gain access to, for example, a ceiling void where the valve may be located. As well as speeding up commissioning, the concept also enables systems to be reconfigured quickly and easily to accommodates changes to layout in an area.

Lars Fabricius highlights some of the commissioning issues raised by the switch to variable volume systems.