LHD

Summary

Product identification

The GIW® LSA Pump Series offers low maintenance, abrasion-resistant pumps designed for heavy-duty service. The LSA series includes four pump groups:

• LSA S: For normal severe duty requirements.
• LSA Expanded: For duty-specific applications such as high pressure, coarse, and fine slurry.
• LHD: For low head, high flow applications.
• MHD: For medium head, high flow applications.

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)
  • Consult the factory for materials and configurations for temperatures above 150°F.

Mechanical / hydraulic

The LSA Pump Series features a rugged design with components 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.
• Replaceable suction liner facilitates pump internal inspection and minimizes wear part usage and cost; liner can be rotated at intervals to increase wear life.
• Pump shell is computer designed to optimize wear and efficiency.

Shaft Seal:

• Replaceable wear plate maximizes stuffing box life.
• Shaft sleeve with fused carbide wear resistant coating to maximize packing life.
• Reduced water consumption options available.
• Shaft seal arrangements can be pressure or flow controlled, restrict seal water flow into pump, and minimize flush water spray.
• Standard shaft seal arrangement includes a Throat Bushing. Other options include KE Design (Minimum Dilution) and SpiralTrac™.

Mechanical End:

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

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
• Alternate material options are available.

Discharge Positions:

• Rotation direction is clockwise from the drive end.
• A vertical discharge is standard.
• Discharge position intervals vary by model, ranging from 9 to 45 degrees.

Pump Range Information Tables: The LSA S, LSA Expanded, LHD, and MHD pump ranges offer a wide selection of nominal sizes, maximum operating pressures, free passage dimensions, discharge position intervals, and vane numbers/types.

• Nominal Sizes: Range from 2x3 in (50x75 mm) up to 44x53 in (1100x1325 mm).
• Maximum Operating Pressures: Vary significantly by model, from 70 psi (4.8 bar) up to 717 psi (49.4 bar).
• Free Passage: Varies by model, with dimensions up to 21.3x23.0 in (541x584 mm).
• Vane Number & Type: Includes 3ME, 4ME, 4RV, 4HE, 5HE, and 5ME options.

See the official PDF for exact tabulated values for each specific pump model within the LSA S, LSA Expanded, LHD, and MHD ranges.

Applications

GIW® LSA pumps are widely used for severe ore and tailings slurry transport, and other demanding applications including:

• Mineral Processing
• Power Generation
• Aggregate
• Ash Handling
• Flue Gas Desulfurization
• Thickener & Tailings
• Mine Dewatering
• Industrial Slurries
• Dredge
• Ore transport
• Mill discharge
• Cyclone feed
• Environmental cleanup
• Pulp and paper
• Food process
• Coke & resin pumping

---

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

Official datasheet (PDF)

Lenntech datasheet mirror