Automatic Balancing Constant Flow Valves

We offer a range of FlowCon Automatic Balancing Valves, specifically designed for automatic balancing and constant flow control of heating & cooling systems. The Dynamic Balancing Valve range covers valves from ½” threaded and up to 1000mm flanged, adjustable or pre-set, for flow rates up to 2287 l/s. Automatic Balancing Valves are available stand alone or as component part of a valve set, typically a ½" or ¾" ABV 4-Port valve set, that fits directly on a fan coil or other terminal unit. Larger-sized threaded or flanged Automatic Balancing Valves are incorporated in prefabricated valve assembly solutions for end of line service or plant rooms. Ask our engineers how our Automatic Balancing valves can support your project requirements!

FlowCon introduced the Automatic Balancing Valve (also referred to as Constant Flow Valve or Dynamic Balancing Valve), back in 1960 through Griswold Controls in the USA and has been market leader in the dynamic HVAC segment since.

The FlowCon Constant Flow Valve range includes the Externally adjustable E-Just Automatic Balancing Valve and the Internally adjustable Composite Automatic Balancing Valve in ½” – 2”. Both types are designed for balancing heating and air conditioning terminal units, offering over 480 different set points across all sizes and types to accurately achieve design flow rates.

The FlowCon Wafer Constant Flow Valve range is designed to meet the higher capacity flow limiting requirements in 50mm -1000mm. Applications include air handling units, boiler flow control, multiple chillers or pump system balancing in high-rise building as well as industrial applications.

The FlowCon SH Constant Flow Valve range is typically used to balance multi-circuit HVAC systems such as multiple fan coils, radiators and heat pumps as well as limiting the flow to individual heat exchangers or domestic water tanks, available in ½” – 1 ½“ and 50mm – 250mm.

The choice of Dynamic Balancing Valve strongly depends on the application and design requirements. Besides the aforementioned Dynamic Balancing Valve ranges we also offer specialty Automatic Balancing Valve ranges, the stainless steel Pure range or the up to 3” threaded K range.

A Dynamic Balancing Valve system ensures automatically the design flow will not be exceeded regardless of pressure fluctuations. Dynamic balancing is a completely pressure independent process that protects downstream systems from overflow or starvation, even at partial loads. The valves and equipment in a Dynamic Balancing Valve system will retain their efficiency, transfer the correct temperature and deliver the right indoor temperature with the lowest possible energy consumption. The FlowCon Constant Flow Valve systems do not require additional length of straight pipe before and after the Automatic Balancing Valve (no piping restrictions), are easy to install and to commission (reduced installation and almost zero commissioning time) with a low minimum ΔP. The FlowCon Automatic Balancing Valve range offers great flexibility through its wide range of flow rates and removable inserts.


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