Fluid coil is a good choice for most general heat transfer applications. It is suitable for use with water, glycols, brines, thermal oils or ammonia. It is used to dehumidify the air and reheat that same air to the desired leaving air temperature and humidity level in low comfort cooling applications such as hospitals, clean rooms, and science or research laboratories.
Fluid Filled Gauges are meant for pulsating loads such as with hydraulic systems. Fluid-filled gauges contain expensive safety valves for relieving excess pressure or employ some type of temperature compensation means to avoid erroneous instrument reading.