Suction Collar Flange d63/50 – Espa Silen S Pump (Reduced)

The suction collar flange is a key sealing element of the transition from d63 diameter pipework to the suction port of the Espa Silen S pump with a d50 internal diameter. The reduced design allows the use of standard d63 pipework without the need to install a separate reducer.

The part is made of a flexible rubber compound resistant to chlorine, acids and alkalis contained in pool water. Correct seating of the collar eliminates air intake on the suction pipe, which causes cavitation and damages the pump impeller.

Installation is carried out without special tools: the collar is fitted into the suction flange of the pump and secured with the screws of the pre-filter lid. Suitable exclusively for Espa Silen S and Silen pumps in combination with d63 pipework.