LSA

Summary

Product identification

The GIW® LSA Pump Series is designed for low maintenance, abrasion-resistant, heavy-duty service. Document reference: 2374.024/01-US

Operating limits

• Discharge: 2 to 36 in (50 to 915 mm)
• Flow rates: 100-110,000 gpm (20-25,000 m³/h)
• Total head: up to 350 ft (105 m)
• Pressure rating: up to 715 psi (up to 50 bar)
• Temperature limit: up to 250°F (120°C)

Mechanical / hydraulic

The LSA pump series features a rugged design with shell, impeller, and liner made from proprietary GIW Gasite® material for superior abrasion resistance.

Design Features:

• Horizontal end suction construction.
• Single wall pump shell with replaceable suction side liner.
• Four vane impeller or three vane option for larger size solids.
• Impeller designed for wear-resistant operation in highly abrasive slurries.
• Two aramid gaskets aid in impeller removal.
• Replaceable suction liner facilitates pump internal inspection and can be rotated to increase wear life.
• Pump shell is computer designed to optimize wear and efficiency.

Shaft Seal:

• Replaceable wear plate maximizes stuffing box life.
• Reduced water consumption options available.
• Shaft sleeve with fused carbide wear resistant coating to maximize packing life. Other material options available.
• Shaft Seal Arrangements include Throat Bushing (standard), KE Design (Minimum Dilution), and SpiralTrac™.

Mechanical End:

• Robust stiffened shaft to improve wear life of the mechanical end and stuffing box.
• Impeller release ring for safe and easy impeller removal (standard on larger pump sizes).
• Spring retainer ring locates thrust bearing preload springs for correct axial thrust load.
• Radial bearings are heavy-duty, self-aligning, double-row, spherical roller-type design.
• Split-cartridge bearing assembly offers ease of inspection and maintenance.
• Accurate impeller clearance adjustments are easily made with an adjusting screw.
• Labyrinth seal end covers protect bearings from contamination.

Quick Alignment & Interchangeability:

• Rabbet fits machined in the pedestal support the shell and provide component alignment.
• Various hydraulic design and material options can be used on the same mechanical end to optimize wear life and efficiency.

Standard Materials:

• Shell: Gasite® WD28G
• Impeller: Gasite® WD28G
• Suction Plate: Ductile Iron
• Suction Liner: Gasite® 18G
• Pedestal: Fab Steel
• Shaft: 4150 Steel
• Stuffing Box: Grey Iron
• Shaft Sleeve: Carbide Coated Steel
• Bearing Housing: Grey Iron
• Consult the factory for materials and configurations for temperatures above 150ºF. Alternate material options are available.

Discharge Positions:

• Rotation direction is clockwise from the drive end.
• A vertical discharge is standard.

Pump Series Groups: The LSA pump series is divided into four pump groups:

• LSA S: Normal severe duty requirements.
• LSA Expanded: Duty-specific applications such as high pressure, coarse and fine slurry.
• LHD: Low head, high flow applications.
• MHD: Medium head, high flow applications.

Pump Range Information Tables: The document provides detailed tables for the LSA S, LSA Expanded, LHD, and MHD pump ranges, including:

• Assembly Number
• Nominal Size (in, mm)
• Maximum Operating Pressure (psi, bar)
• Free Passage (in, mm)
• Discharge Position Intervals (degrees)
• Vane Number & Type

See the official PDF for exact tabulated values for each pump model within these ranges.

Applications

GIW® LSA pumps are widely used in:

• Mineral Processing
• Power Generation
• Aggregate
• Ash Handling
• Flue Gas Desulfurization
• Thickener & Tailings
• Mine Dewatering
• Industrial Slurries
• Dredge

The LSA can also be used for environmental cleanup, dewatering, pulp and paper, food process, coke & resin pumping, and ash handling.

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the official OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror