1. INSTALLATION
IOM manual Tapflo TE series
10
1.6.
Environment
➢
There should be enough space in the vicinity of the pump in order to operate, maintain
and repair it.
➢
The area in which the pump is operated, must be sufficiently ventilated. Excessive
temperature, humidity or dirt may affect the pump operation.
➢
Behind the cooling fan of the motor there must be sufficient room for the hot air to escape
the motor.
1.7.
Suction and discharge piping
A pump is generally part of a piping system that can include a number of components such as
valves, fittings, filters, expansion joints, instruments, etc. The way the piping is arranged and the
positioning of the components has a great influence on the operation and the lifetime of the
pump. The pump cannot be used as a support for the components connected to it.
The flow of liquid from the pump must be as even as possible. It is advisable to avoid any tight
bends or drastic reductions of diameters that may cause flow resistance in the installation. In
case of diameter reduction, it is advisable to use appropriate conical reductions (possibly
eccentric on suction side and concentric on discharge side) at changes of diameter and at a
minimum distance from pump connections of five diameters.
1.7.1.
Rotary connections (industrial pumps only)
The suction and discharge connections can be rotated
180°.
This simplifies the assembly and
installation of the pump. If you wish to rotate the connections, screw a threaded nipple into the
connection and rotate it. It is also advised to loosen the upper nuts to ease rotation.
NOTE!
Remember to re-torque the housing nuts after this procedure.
1.7.2.
Connection of suction pipe
Remember that the suction pipe/connection is the most critical point, especially if the pump is
priming. Just a small leakage will dramatically reduce the suction capability of the pump. When
connecting the suction pipe, the following is recommended:
1) For satisfactory operation, use a reinforced hose (the suction power may otherwise shrink
the hose) or other flexible piping. The internal diameter of the hose should be the same
as on the suction connection (at the bottom of the pump) to have best suction capability.
If the diameter of a hose is smaller, it will affect the pump's performance or cause its
malfunction.
2) Make sure that the connection between the hose and the pump is completely tight,
otherwise the suction capability will be reduced.
3) Always use as short suction pipe as possible. Avoid air pockets which can emerge within
long piping.
1.7.3.
Connection of discharge pipe
For this connection it is only recommended to have a simple and positive flow connection. Use
a hose or flexible piping (minimum one meter) between the discharge connection and any rigid
fixed piping. Coil the hose at least one turn. All components (hose, pipe, valves etc.) on the
discharge piping must be designed for minimum PN 10.
NOTE!
Never close the shut-off valve during pump operation!
Summary of Contents for TE Series
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