Flanged rings RF
The Wilo-RF flanged rings are used for compensation of the port-to-port length in case of a pump replacement.
They are – apart from where stated otherwise – intended for length compensation with PN 6 flanges (RF 4, RF 5 and RF 6, also in PN 16).
The piping has to be changed for length compensation with PN 10/16 flanges.
RF 7 (oval flange, hole circle Ø 80)
RF 8 (square flange, hole circle Ø 90)
Not approved for drinking water applications.