Watson-Marlow APEX10 - Manual (Page 22)

INSTALLATION
22
5.3.3 Pipework
When determining and connecting suction and
discharge lines consider the following points:
•
It is recommended that the bore size of the
suction and discharge lines is 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 any
bend is as large as possible. Use Y-connections
instead of T-connections.
•
It is recommended to use a minimum of three
quarters (3/4) of the hose length as flexible
hose in the suction or discharge line. This
avoids the need to remove the connection lines
when changing a pump hose.
•
Keep the delivery and suction lines as short and
direct as possible.
•
Select the correct mounting material for flexible
hoses and make sure that the installation is
suited for the design pressure of the system.
•
Do not exceed the maximum working pressure
of the hose pump. Refer to §
11.1.1 . 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
working pressure on the discharge side.
Exceeding the maximum working pressure
may lead to serious damage to the pump.