3 Product Description
3.1 General description
Product description
Goulds Model 3409 is a double-suction, horizontally split-case pump. The product line consists of 11
sizes from size 6x10-22 through size 14x18-28.
WARNING:
Use of equipment unsuitable for the environment can pose risks of ignition and/or explosion.
Ensure the pump driver and all other auxiliary components meet the required area classifica-
tion at the site. If they are not compatible, do not operate the equipment and contact an ITT
representative before proceeding.
Casing
The axially split, double-volute casing is constructed of cast iron, for working pressures up to 175 psig
(some sizes have ratings of 300 psig), or ductile iron, for working pressures up to 400 psig (some sizes
are limited to 300 psig). Suction and discharge flanges and mounting feet are cast integral with the lower
half of the casing.
Tapped and plugged holes are provided for priming, vent, drain, and gauge connections. The upper half
of the casing can be removed without disturbing suction or discharge piping. Flanges are ASA Standard
125/125#, 125/250#, or 250/250#. Suction and discharge are on a common centerline in both the hori-
zontal and vertical planes.
Impeller
•
Enclosed, double suction
•
Bronze, ductile iron, or 316 stainless steel
•
Statically and hydraulically balanced
•
Keyed to the shaft
•
Positioned axially by the shaft sleeves
•
Hub with sufficient metal thickness to allow machining for installation of impeller rings
Shaft
The shaft is made of AISI 4140 steel, 316 stainless steel, or 17-4 ph stainless steel. The shaft size allows
for operation under load with a minimum of deflection.
Shaft sleeves
•
Bronze, 420 hardened stainless steel (packing only), 316 stainless steel, or cast iron
•
Protect the shaft from wear and from contact with the pumped fluid
•
An O-ring under the sleeve to prevent leaks
Stuffing box
•
Non-asbestos packing
•
Split-type gland to permit removal and access to packing
•
Ample space for repacking the stuffing box
•
Arranged for field or factory conversion to mechanical seals without machine work
3 Product Description
14
Model 3409 Installation, Operation, and Maintenance Manual
Содержание Goulds Pumps 3409
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