The BESGO valve is a pneumatic valve designed for backwashing the filter tank (5-way design). The valve is actuated, i.e. opened, by water pressure from the line or by means of an air compressor. It closes back automatically using a spring.
A major advantage of these valves is maximum operating safety; the position can be changed even while the filter pump is running, although it is always preferable and safer to adjust the valve without water flow. Besgo valves can be used as an alternative to a 6-way valve.
In the event of a power failure, the valve automatically switches back to the "FILTERING" position, so there is no risk of it getting stuck in an intermediate position or accidentally draining water from the pool, as can happen in the case of mechanical damage to automatic 6-way valves.