LX Screw spiral centrifugal pump for slurry pulp

Designed for reliable handling of high-solids and long-fiber slurries, this LX spiral (screw) centrifugal pump combines a spiral propulsion section with a conventional centrifugal section in a single impeller. The impeller’s twisted blades extend axially from the conical hub and increase in radius to form a spiral flow channel that prevents clogging while producing centrifugal discharge at the outlet.

Key features

• Dual-action impeller: spiral (axial) section for moving large particles and fibers smoothly, plus centrifugal section for efficient discharge.
• Anti-clog, non-shearing design: transports long fibers and blocky solids with minimal damage to conveyed material.
• Stable operating characteristics: steep flow–head curve with a flat power curve for efficient operation across a range of flows.
• Gas-handling capability: able to convey slurries with entrained gas up to about 15% without performance loss.
• Casing split into suction cover and volute chamber to match the impeller geometry and facilitate flow.

Benefits for buyers

• Reduced downtime and maintenance because solids and fibers pass through the pump without blocking the impeller.
• Gentle handling of shear-sensitive materials (pulp, live seafood, biological sludges) to preserve product integrity.
• Versatile use across industries — one pump type can replace multiple specialty pumps in mixed-waste, dredging, or food-processing applications.

Typical applications

• Municipal and industrial sewage treatment (high‑concentration, untreated sewage and pollutant discharge)
• River and harbor dredging (silt and sand transport)
• Pulp and paper (high-concentration pulp and long fibers)
• Marine and aquaculture (transporting live fish, shrimp)
• Gelatin and meat processing (animal skins, bones)
• Food processing (root vegetables and other chunks)
• Coal and mineral processing (coal slurry, ash, slag)
• Biotech and anaerobic digestion (manure, slurry for biogas systems)

Selection guidance

• Choose pump size and trim based on maximum particle/fiber length, solids concentration, viscosity and required head/flow.
• For abrasive or corrosive slurries specify appropriate materials of construction and wear parts at order stage.

Model and ordering

Model: LX125-265 (series LX). For technical details, materials options, performance curves and spare parts list, request the pump specification sheet matching your service conditions.