Pentair stark - Differential Pressure Switch Assembly ( CS400DP )
Description:
The CS400DP (Mounted Differential Pressure Switch) from Pentair Water Commercial Pool and Aquatics™ allows the CS400 Backwash Controller to backwash filter system automatically based on differential pressure. While the CS400 Backwash Controller is in filtration mode, the system has a Normal (Clean) Influent and effluent operating pressure. The pressure difference between the influent and effluent pressure is know a “Differential pressure”. As Dirty water enters the filter tank by being pumped under pressure through the influent pipe it’s distributed across the top of the inner tank chamber through diffusers. The water is then forced downward through the sand filter bed. Dirt and debris is collected in the sand bed allowing clean water to pass through. The clean water then passes through the collection laterals and exits the filter through the effluent piping and is returned to the pool. As the filter gets dirtier, the “Differential pressure” will increase. When this pressure rises to the set point of the differential switch a signal is sent to the CS400 controller and a backwash is initiated automatically.