Watson-Marlow SPS - Manual (Page 48)

MasoSine SPS sinusoidal pumps User Manual 48
SPS 100 pumps
with a single
mechanical seal
Fitting the static face and the mechanical seal
l Position the static face in the mechanical seal, with the static face’s O-ring
facing the mechanical seal. The static face has two recesses (arrowed) which
must be correctly aligned with lugs (arrowed) either side of its seat
l Use a finger to retain the static face in position on the mechanical seal and
push them on to the pump shaft and all the way home into the pump housing.
Note: The mechanical seal has a lug on its inner surface which must be aligned
with the shaft splines.
The static face with its O-ring, left,
and the mechanical seal with one of
its O-rings visible. The surfaces of the
two components seen here must come
together on reassembly. The back
bushing is seen, right
l Check that the static face’s O-ring is properly positioned and that the O-rings
either side of the mechanical seal are properly positioned.