Description
RAF 40 is used to maintain a preset water level of reservoir or water tank in a simple manner. The RAF valve is activated by line pressure.
The RAF 40 stays open as long as the water level of the reservoir is below a preset level. As the water level rises the RAF 40 gradually closes.
Three adjustable altitude ranges are provided.

Applications
Use RAF 40 for reservoirs & water tanks level control anywhere. Line pressure provides energy suitable for operation. RAF 40 is particularly suitable for remote sites. Due to its simple design it is virtually maintenance free