Watson-Marlow SPS - Manual (Page 70)

MasoSine SPS sinusoidal pumps User Manual 70
Pumps with a triple lip seal: fitting the distance ring
l The distance ring is a loose fit in its channel on the face of the power frame.
Position it with the radiused edge facing the power frame.
The distance ring with radiused edge up
SPS 200 pumps
with a triple lip
seal