NB Sand Slurry sludge pulp pump sewage drainage

Heavy-duty NB-series sand and slurry pump designed for continuous transport of abrasive, high‑concentration slurries in dredging, mining, power plant, and civil reclamation projects. Engineered for wear resistance and long service life, the pump handles coarse solids and high solids concentrations while remaining easy to install and maintain.

Key features

• Robust, replaceable wet-end construction: pump body, impeller and protective plate available in high‑manganese ductile iron, high‑chromium alloy or non‑metallic wear‑resistant materials to suit abrasive or corrosive slurries.
• High solids capability: handles slurry concentrations typically over 40% and up to 60% solid–liquid mixture by weight.
• High capacity and depth: mixed flow rates up to 2,000–5,000 m3/h and pumping depth up to 30 m (application dependent).
• Reliable shaft sealing: packing seal with high‑pressure flushing to protect the seal chamber and extend service intervals.
• Flexible installation: standard rotation is counterclockwise when viewed from the pump inlet; horizontal outlet is to the right (viewed from inlet) and can be reoriented within 360° on site to suit piping layouts.
• Drive options: compatible with electric motors or diesel engine drives for stationary or mobile installations.
• Designed for maintainability: modular assembly (pump body, impeller, cover, bracket, bearing housing) with replaceable wear parts to minimize downtime.
• Customization supported: materials, impeller type, drive package and other details can be specified to match application requirements.

Typical applications

• River, lake and sea sand extraction and dredging
• Hydraulic filling and land reclamation
• Tailings and slurry transfer in mining and ore processing
• Coal mine slurry handling and ash/sludge transfer at power plants
• Sand extraction ships, shore-based relay pumping and long‑distance sediment transport

Ordering guidance

When requesting a quote, provide required flow and head, slurry density and typical particle size, expected abrasive/corrosive conditions, preferred wet‑end material, and preferred drive type (electric or diesel). Example model: 150NB-25. Custom engineering support available for drive selection, mounting and pipeline orientation.