Watson-Marlow SPS - Manual (Page 92)

MasoSine SPS sinusoidal pumps User Manual 92
l Hold the rotor vane in the slot of the gate. The rotor is reversible. Use two
hands to position the rotor, the gate and the gate guide together. Push the
assembly into position. The gate and gate guide slide freely into their channel;
the splines within the rotor hub must be aligned with the shaft splines.
l Ensure that the rotor is pushed all the way home.
Fitting the rotor, the gate and the gate guide
The gate and gate
guide
l Check that the two rotor O-rings (visible one arrowed) are in position on both
sides of the rotor.
l Position the gate within the gate guide and hold as one unit.
Check that the gate and gate guide are correctly oriented for the
desired sense of rotor rotation. This is critical for proper operation
The gate and
gate guide oriented for
clockwise rotor rotation
The gate and gate guide orient-
ed for counter- clockwise rotor
rotation
Pressure
side
Suction
side
Suction
side Pressure
side
SPS 250, SPS
300, SPS 400
and SPS 500
pumps