Watson-Marlow SPS - Manual (Page 69)

MasoSine SPS sinusoidal pumps User Manual 69
Pumps with a single mechanical seal: fitting the backing ring and
the rear liner
l Push the rear liner into position below the backing ring. The anti-rotation
pins within the pump housing (arrowed) guarantee that the liner is properly
positioned. The two liners are identical.
The backing ring
l Push the backing ring over the pump shaft and over the dynamic ring holder.
The backing ring is reversible.
SPS 200 pumps
with a single
mechanical seal