Goulds Pumps 3393 - IOM - Manual (Page 15)

Product Description
Product Description
General description
The Model 3393 is a radially split, segmented casing, multistage pump with these characteris-
tics:
• Modular interstage components
• Varying numbers of stages, hydraulics, materials, and configurations
• Multiple suction nozzle and discharge nozzle orientations.
• Multiple hydraulics for each pump size
Radial suction configuration features radial suction and discharge nozzles. The suction and
discharge nozzles can be positioned either vertical or horizontally at 90º to either side. This
design consists of two robust, finned bearing housings with traditional anti-friction bearings and
mechanical seals on each end of the pump.
Figure 3: Radial suction design
End suction configuration features an end suction nozzle in conjunction with a radial discharge
nozzle. The suction end of the pump utilizes a product-lubricated bearing eliminating the need
for a second bearing housing and mechanical seal. Because of the positioning of the sleeve
bearing in the end suction casing, the suction flange size is one size larger than the size for the
radial suction arrangement. The discharge nozzle can be positioned either vertically or
horizontally at 90º to either side.
Figure 4: End suction design
Casing
The pressure boundary consists of three basic casings and a mechanical seal chamber.
• The suction casing is available in an end or radial suction arrangement and is rated to a
lower pressure that the interstage or discharge casings.
• The interstage casings are combined with the diffuser into a single piece and are rated to
the full discharge pressure.
• The discharge casing is of dual volute construction.
Model 3393 Installation, Operation, and Maintenance Manual 13