Exact and pressure independent flow limitation allows no overflows at partial conditions to keep temperature difference over terminal unit as high as designed
The AB-QM is able to control the temperature at low loads and is equally stable all through the range. All changes in the available differential pressure are corrected by the pressure controller. Therefore, less
disturbances for temperature control and therefore less movements from actuator.
AB-QM offers full flexibility of flow adjustment AB-QM valves can be set to a precise design value even when the system is up and running so no need for draining the system or use of flow charts or calculations ? they allow full control over the real conditions in the system. Due to the membrane design the valves are less susceptible to blockage. Always the right flow, so no complaints from end-users
Exact flow limitation at any load condition prevents excessive energy consumption that occurs when static balancing method is used in variable flow system.
Because the AB valve covers two functions Balancing & Control – the instalment costs are halved.
Measuring nipples allow optimisation of the pumps energy consumption.
100% built in control valve authority allows lower pump head than traditional setup, thus minimizing energy consumption.
Because of the automatic flow limiting function, commissioning costs are nonexistent. Easy adjustability allows late change of design flows without high costs.
Plug and Play even when installation is not yet completely finished. For example when some floors are already occupied while construction is still going on at other floors, the occupied floors are already fully functional and balanced.
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