Watson-Marlow 900 Series - Manual (Page 5)

Page 5
Part 1: Installation
Siting
If the pump is to be lifted ensure that all standard rigging practices are
adhered to. This procedure should only be carried out by qualified
personnel only who are familiar with the Health and Safety at Work Act
1974.
The pump should be situated on a flat horizontal surface where there is free
air to circulate around it. Where the tubing is entering and leaving the
pumphead there should be least 1m of tube without a bend, a removable drop
out section to aid tube replacement, and if practical, this should be of a larger
diameter than the pump tubing.
Pump connections
It is recommended that for
maximum tube life, the pump
should always be set up with the
delivery end of the tubing
connected to the lower casing
port of the pumphead and
immersed in cooling lubricant.
This may require the pump head
to be re-fitted to the correct
orientation for operation.
Natural rubber
Nylon
Reinforcing
Natural rubber
Food grade natural rubber
Food grade nitrile rubber
Neoprene rubber
EPDM
If the main pipe run to the pump
is rigid pipe work, there should
be a drop out section or flexible
pipe work to allow the pump
tubing to be inserted and
withdrawn.
For working pressures over 7 bar,
always fit an outlet pulsation
damper. Watson-Marlow, or its
representative, can supply
pulsation dampers and will assist
with determining the type
required for your application.
900 Series tubing is available in
the combinations seen left for a
range of process requirements.