Operation manual Soldos - SL (04-09) page 15 of 18
8. Peristaltic pump
8.1 Function principle
This type of peristaltic pump will reliably meter a
chemical solution to the injection point particularly when
low dosing rates are required with products which ‘gas
off’ (i.e. self priming). The advancing roller occludes the
tube which, as it recovers, draws in fluid that then
becomes trapped by the next roller and later expelled
from the pump. The technique offers the following
advantages:
No contamination of the fluid or the pump as the fluid
is contained in the tube
Gentle pumping action with accurate flow rates
The pump is self priming and can run dry
The pump is quiet running and very simple to handle
8.2 Changing the dosing hose
For transport and storage, the peristaltic hose kit is not fitted into the pump to
prevent deformation of the hose. For fitting push in the hose holder into the
slides at bottom of the pump housing, turn the roller so that the hose comes to
the flat part, push the hose into the housing by turning through the roller. After
some turns the hose is in the right working position. Than fit the safety disc onto
the shaft and the protection cover onto the housing
Note
Do not twist the
hose during
assembly
Pump housing
Roller
Safety disc
Hose holder with
tube connectors
Suction side
Pressure side
