410 Series; Single-Stage Split Case Pumps

Product catalog summary

Introduction
The Aurora 410 Series pumps are engineered for reliability and ease of access in liquid handling, suitable for industrial, agricultural, and commercial uses. These pumps benefit from over 85 years of experience, featuring a modern design and high efficiency.

Specifications
The series includes models 411, 412, and 413, with capacities reaching up to 15,000 GPM, heads up to 663 feet, and temperatures up to 275°F. Standard features include bronze-fitted construction, dynamically balanced impellers, and regreasable ball bearings. Optional features include all-iron or special alloy construction and oil-lubricated bearings.

Design and Features
The split case design facilitates easy disassembly without disturbing piping alignment. Key features include dynamically balanced impellers, bronze shaft sleeves, and interchangeable stuffing boxes for mechanical seals or packing. Bearings are designed for a minimum lifespan of 50,000 hours.

Vertical vs. Horizontal Pumps
Vertical pumps, such as Model 413, require less floor space and offer protection against flooding. Horizontal models, like Model 411, are ideal where floor space is available and flooding is not a concern.

Performance Curves
Performance curves illustrate operating characteristics, efficiency, and horsepower requirements, aiding in selecting the appropriate pump size based on specific gravity and other factors.

Installation and Operation
Models 411, 412, and 413 are base-mounted and designed for specific installation conditions, delivering specified capacities and heads with guaranteed efficiency. The casing design allows for easy maintenance and service.

Specifications
The document details the specifications for various pump models, emphasizing the design and functionality of hydraulic components. Pumps are equipped with wear rings to prevent rotation, and rotating elements are mounted in heavy-duty grease-lubricated ball bearings designed for a lifespan of 250,000 hours, housed in moisture and dust-proof machined housings.

Procedures
The installation procedure involves checking the alignment of the pump and motor after the base installation and grouting, following Hydraulic Institute standards. It is crucial that no strain is transmitted to the pumps.

Models and Features

Model 411: Features stuffing boxes on both sides of the pump centerline for shaft sealing, with lantern rings for pumps with suction lift.
Model 412 and 413: Equipped with mechanical seal boxes and require a bypass line for seal chamber venting and lubrication. Model 412 uses vertical open shaft pumps driven through flexible shafting, while Model 413 features vertical flexible coupled pumps with a cast iron motor bracket.

Materials and Construction
The pumps use 303 stainless steel for metal parts, Buna-N elastomers, Ni-Resist seats, and carbon washers for mechanical seals. The construction includes heavy, cast, split glands for easy maintenance and inspection.

Recommendations
Ensure proper alignment and installation to prevent strain on the pumps. Regular maintenance and inspection of the packing and seals are recommended to ensure optimal performance.

Contact Information
Aurora Pump provides contact details for their manufacturing plant and sales offices, highlighting the availability of authorized local distributors for support and service.

Catalog excerpts

410 Series; Single-Stage Split Case Pumps-2

Bronze fitted pump constuctionBronze shaft sleevesDynamically balanced impellersBronze case wearing ringsTwin volute on 10 and larger pumps Stainless steel impeller keyRegreasable ball bearingsSingle row ball bearing (inboard)Double row ball bearing (outboard) Mechanical seals...single unbalanced(Model 412 and 413)Graphite and TFE lubricated acrylic packingInternal bypass between casing and stuffing box125# ASA flanges250 psi case working pressureCarbon steel shaftStuffing box bushings Lifting lugsHydrostatic testCast integral bearing armsWater slingers and grease sealsExternal bypass between...

Open the catalog to page 2

410 Series; Single-Stage Split Case Pumps-5

GO VERTICAL AND PUT 2 PUMPSWHERE ONLY ONE HORIZONTALWOULD FIT. Auroras space saving vertical split case pumps have long beenrecognized for their reliability. Thisreputation in the field of verticalinstallations has been re-emphasized since the introductionof the Model 413 as pumps of unmatched quality.VERTICAL PUMPS PROVIDEDISTINCT ADVANTAGES OVER HORIZONTAL PUMP CONSTRUCTION.A. Less floor space required.B. Inline piping arrangement allows piping in any direction.C. Elevated motor protects againstpotential flooding if the pump station is in a low area. Additional features described for the horizontalpumps...

Open the catalog to page 5

410 Series; Single-Stage Split Case Pumps-10

Some of the important features of theAurora 410 Series Split Case Pumpsare outlined below: 1. SPLITCASEDESIGN simplifiesdisassembly. The suction and dischargepiping and alignment is not disturbed. Simply remove the upper casing forservice or inspection. Cast lifting lugsare provided. Computer-machined major components with 360 degree registered fits assure concentricity of allparts. Twin volute design balances outradial hydraulic thrust loads on larger split case pumps (see Range Charts). 2 . DYNAMICALLYBALANCEDIMPELLER is keyed to the shaft and s ecured by adjustable shaft sleeves.Double suction...

Open the catalog to page 10

410 Series; Single-Stage Split Case Pumps

410 Series; Single-Stage Split Case Pumps

Catalog excerpts

All Aurora Pump catalogs and technical brochures