3 Product Description
3.1 General description
Model 3296 EZMAG
The Model 3296 EZMAG is a sealless centrifugal pump with an enclosed impeller that is driven by a syn-
chronous magnetic coupling. Model 3296 EZMAG meets the dimensional standards of ANSI B73.1.
Casing
The casing is top centerline discharge and is self-venting. It incorporates a fully-confined gasket with AN-
SI Class 150 flanges that are serrated and raised-faced. ANSI Class 300 flanges that are serrated and
raised-face are optional. The 3296 EZMAG is designed to have a metal-to-metal fit between the casing
and the backplate.
Magnetic coupling
The magnetic coupling is a coaxial synchronous type that uses rare earth magnets. This concept results
in a compact design and allows the impeller to turn at the same speed as the motor, which means that
there is no slip between the drive and the driven magnets.
Magnets
Two types of rare earth magnets are available:
•
Neodymium Iron (NdFe) is used when pumped liquid temperatures are less than 180°C | 365°F.
•
Samarium Cobalt (SmCo) is used when pumped liquid temperatures are between 180°C | 365°F
and 280°C | 536°F.
Containment shell
The containment shell isolates the pumped liquid from the atmosphere and is constructed from Hastel-
loy-C.
Sleeve bearings and thrust bearings
Goulds standard bearing material is Pure Sintered Alpha Grade Silicon Carbide. Dryguard
™
bearings are
available for dry-run protection.
Impeller
The 3296 EZMAG uses an enclosed impeller that is hydraulically-balanced and keyed to the shaft.
Bearing frame
The standard configuration is cast iron with ball bearings that are flood oil–lubricated. Greased-for-life
bearings systems are available as an option. Bronze bearing isolators are provided for protection and re-
liability of the bearings and the lubricant.
3.2 Nameplate information
Important information for ordering
Every pump has nameplates that provide information about the pump. The nameplates are located on
the casing and the bearing frame.
3 Product Description
14
Model 3296 EZMAG Installation, Operation, and Maintenance Manual