Goulds Pumps 3409 - IOM - Manual (Page 13)

GENERAL INFORMATION
PUMP DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
NAMEPLATE INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
PUMP DESCRIPTION
This product line consists of 12 sizes of double suction,
horizontally split case pumps from size 6x10-22 through
size 14x18-28.
Casing - The casing shall be close-grained Cast Iron or
Ductile Iron, and shall be of axially-split double-volute
design with suction and discharge flanges and mounting
feet cast integral with the lower half casing. Tapped and
plugged holes shall be provided for priming, vent, drain
and gauge connections. Upper half casing shall be
removable without disturbing suction or discharge piping.
Flanges shall be of (125/125#) (125/250#) (250/250#) ASA
Standard. Suction and Discharge shall be on a common
centerline in both the horizontal and vertical planes.
Impeller - The impeller shall be of the enclosed
double-suction type made of (bronze) (ductile iron) (316
stainless steel) and statically and hydraulically balanced.
The impeller shall be keyed to the shaft and positioned
axially by the shaft sleeves. Hub shall have sufficient metal
thickness to allow machining for installation of impeller
rings.
Shaft - The shaft shall be made of (AISI 4140, 316
stainless steel, 17-4 ph) and be of ample size to operate
under load with of minimum deflection.
Shaft Sleeves - The shaft sleeves shall be made of (bronze)
(420 hardened stainless steel) [packing only] (316 stainless
steel)(cast iron) and shall protect the shaft from wear and
from contact with the pumped liquid. An O-ring shall be
furnished under sleeve to prevent leakage.
Stuffing Box - The stuffing box shall consist of at least six
(6) rings of die formed, graphite acrylic yarn packing and a
split type gland to permit removal and access to packing.
Ample space shall be provided for repacking the stuffing
box. Arrangement shall provide for field or factory
conversion to mechanical seals without machine work.
Casing Rings - The casing rings shall be made of (bronze)
(cast iron) (Nitronic 60 stainless steel) and shall be
installed with an anti-rotation device.
Bearings - The bearings shall be grease lubricated or oil
lubricated. The inboard or coupling end bearing shall be a
single row ball bearing. The outboard bearing shall be a
double row cylindrical roller bearing which is retained by
bearing locknut and lockwasher.
Bearing Housings - The bearing housings shall be bolted
to the end of the lower half casing and shall assure positive
alignment of the rotating element. The housings shall
provide a fit for the inboard bearing that allows freedom
for thermal expansion while the outboard bearing shall be
clamped in place to take all thrust loads and keep the
rotating element in its proper axial location.
Baseplate - The baseplate shall be sufficiently rigid to
support the pump and driver and shall be steel with a drip
pan beneath the pump end. The drip pan shall contain a
tapped drain connection.
Coupling - Coupling shall be an all metal type.
!
The coupling used in an ATEX classified
environment must be properly certified.
Coupling Guard - The coupling guard shall be all metal.
!
The coupling guard used in an ATEX classified
environment must be constructed from a non-
sparking material.
Rotation - Pump shall have clockwise or counterclockwise
rotation when viewed from its
driven end.
3409 IOM 11/04
13