Operation Manual
4.3 Pipework
All pipework
must
be supported. The pump
must not
be allowed to support any of the
pipework weight.
Remember -
Pipework supports must also
support the weight of the
product being pumped.
Always :-
Have -
Suitably sized short straight
suction lines to reduce
friction losses in the
pipework thereby improving
the NPSH available.
Avoid -
Bends, tees and any
restraints close to either
suction or discharge side of
pump. Use long radius
bends wherever possible.
Provide -
Valves on each side of the
pump to isolate the pump
when necessary.
Keep -
Pipework horizontal where
applicable to reduce air
locks. Include eccentric
reducers on suction lines if
required.
Check -
Coupling alignment during
installation.
Use -
Flexible connections between
tank pipework and suction
port where conditions allow.
Pipework
support
Pipework
support
4.4 Port Orientation
The pump can be mounted in either horizontal
or vertical port orientation by changing the
pump mounting feet and its position. Pump
should not be side mounted when fitted with
vertically ported feet.
STP125 Page 11
