Description
The Johnson Controls VFN-030HB-001N is a 3″ 2-way butterfly valve that is popular in commercial and industrial HVAC systems to control air handling units, chillers, and heating systems. It restricts the flow of fluid by positioning a disk inside the valve body. This disc can be set in such a way that it does not obstruct the flow of fluids (open) or the flow channel is obstructed (closed). In this one, it uses a pneumatic actuator that applies compressed air to operate the desired disc. This also makes it possible to control the systems remotely and to interface with other systems in the building. The valve has a pressure rating of 175 PSI and a Cv number of 267 which shows its flow coefficient.









