3 pipework – Watson-Marlow Bredel 40 User Manual
Page 22
INSTALLATION
22
5.3.3
Pipework
When determining and connecting suction and
discharge lines consider the following points:
•
The bore size of the suction and discharge lines
must be larger than the bore size of the pump
hose. For more information consult your Bredel
representative.
•
Limit the presence of sharp bends in the
discharge line. Make sure that the radius of the
bent discharge line is as large as possible
(preferably 5S). It is recommended to use Y-
connections instead of T-connections.
•
Keep the piping at a minimum equal to or
greater than the bore size of the pump. Increase
the bore size of the pipe work when the duty
fluid has a high velocity or inertia. This will help
keep friction and impulse losses to a minimum.
Where critical velocities are a concern consult
your Bredel representative.
•
For the flexible hoses select compatible
materials and ensure the installation is suited
for the design pressure of the system.
•
Keep the delivery and suction lines as short and
direct as possible.
•
Prevent any possibilities of exceeding the
maximum working pressure of the hose pump.
Refer to §
. If necessary fit a pressure
relief valve.
•
Make sure that the maximum forces on the
flanges are not exceeded. The permissible
loads are given in the following table.
CAUTION
Consider the maximum permissible work-
ing pressure on the discharge side.
Exceeding the maximum working pressure
may lead to serious damage to the pump.