Dwyer Instruments V4-2-U Flotect Flow Switch Brass Body

The Dwyer Instruments V4-2-U Flotect Flowswitch is a liquid flow switch that protects HVAC (Heating, Ventilation, and Air Conditioning) equipment from damage caused by low or lost flow. It is made of brass for durability and has a unique magnetically activated switching mechanism with a free-swinging vane. This design eliminates the need for bellows, springs, and seals, which are prone to failure. As liquid passes through the switch, it moves the vane, which activates a switch and sends an electrical signal to the HVAC system. This signal can be used to initiate a variety of actions, such as activating pumps or alarms, to prevent equipment damage. The V4-2-U's simple yet dependable design makes it an ideal choice for a variety of HVAC applications.