The 11509 pump flange is a hydraulic connecting part that connects the inlet or outlet port of the pump with the pool piping using a screw or flange joint. The black surface finish guarantees resistance to UV radiation and basic aesthetic matching with dark installations.
The flange is made of durable plastic or composite material that resists pool chemicals, the pressure of the operating water and temperature fluctuations typical of outdoor pool installations. The precise machining of the mating surfaces ensures tight joints without the need for sealants.
Replacement of the flange is necessary in the event of cracking or mechanical damage that causes water leakage from the hydraulic circuit. The original part for the 11509 model pump guarantees the correct dimensions of the screw holes and the precise port diameter corresponding to the pool piping.
