Installation
Ampco Pumps Company
Page 8
Ampco Pumps Company ZP3 Manual M-004 Rev A 10.15
Piping and Connections
It is important to minimize forces imposed on the pump. This can be done by independently
supporting the piping going to and from the pump. Excessive force applied to the pump can
cause misalignment of internal parts which leads to the premature wear of rotors, bearings,
and shafts. The use of hangers and pedestals on connecting pipes will help avoid such
misalignment. Examples of such supports can be seen in Figure 5.
Figure 5: Piping Support Example
It is not recommended to weld custom fittings outside the factory. Shrinkage and warpage can
occur to the pump housing which will affect the life and performance of the pump.
To prevent air pockets from entering the pump from the inlet, install the pump below the supply
(Figure 6). This will create a constant supply of product on the suction side, and reduce the
chance for air to enter the pump. Sloping the piping on the inlet side away from the pump will
prevent air pockets if the pump is installed above the supply (Figure 7).
Figure 6: Correct Piping (Supply Above) Figure 7: Correct Piping (Supply Below
)
