Goulds Pumps 3393 - IOM - Manual (Page 16)

Product Description
Flange ratings
Flange Options
Suction
ANSI B16.5 150 lb RF / ISO 7005-1 PN 20
ANSI B16.5 300 lb RF / ISO 7005-1 PN 50
EN 1092-1 PN 40
Discharge
EN 1092-1 PN 63
ANSI B16.5 600 lb RF / ISO 7005-1 PN 110
EN 1092-1 PN 100
ANSI B16.5 900 lb RF / ISO 7005-1 PN 150
(12 Chrome casing only)
Impeller
The impeller is a single suction, enclosed impeller. It is keyed to the shaft.
Seal chamber
The seal chamber accepts single or double cartridge seals and various piping plans. It is
dimensioned based on DIN 24960.
Bearing frame and bearings
The bearing frame is cast iron, finned for additional cooling and oil lubricated. Bearings are as
noted in the following table.
Pump Size 2.5x4-8 4x5-10 5x6-11 6x8-13
Bearing - driver end 7408 BCBM 7409 BCBM 7311 BECBM 7214 BECBM
(thrust)
Bearing - outboard
SiC/SiC SiC/SiC SiC/SiC SiC/SiC
(ES) (radial)
Bearing - outboard
6408 6409 6311 6214
(RS) (radial)
Shaft
The shaft is of heavy-duty construction of 17-4 pH or super duplex depending on the casing
material. It is designed for cartridge mechanical seals to limit shaft deflection to .002 in. (0.051
mm) at worst case condition.
Baseplate
The baseplate is of fabricated steel and supports the pump, driver, and any accessories.
Pump description
The Goulds Model 3393 is a radially split, segmented casing, multistage pump designed with
modular interstage components. These identical components can be assembled to produce
pumps of varying numbers of stages, hydraulics, materials, and configurations to meet the
customer's specific requirements. Its multiple suction nozzle and discharge nozzle orientations
allow the 3393 to adapt to multiple piping installations and provide the piping designer with
flexibility in plant layout. Multiple hydraulics for each pump size optimize efficiency across a
vast range of applications. All intermediate stage components are identical which reduces
spare parts inventory.
The 3393 is designed as a two-pole speed pump. There will be times when the pump will be
operated at variable speed. The 3393 can be operated between 2700 and 3600 rpm without
reference to the factory. At speeds above 3600 rpm and below 2700 rpm, a lateral critical
speed analysis must be conducted by the factory. Contact your local representative for pricing.
In all cases it is imperative that the pump be brought up to its minimum operating speed as
quickly as possible. This ramp up time should not exceed 5 seconds.
14 Model 3393 Installation, Operation, and Maintenance Manual