Sludge Feed Pumps

Typical project applications

Pumps, dosing & controls.

Progressive cavity sludge feed

A rotating screw rotor and elastomer stator form cavities that convey sludge toward the discharge. The catalogue includes horizontal direct-coupled and bearing-seat arrangements; hopper-fed alternatives are available for less free-flowing material.

Selection must consider solids content, particle size, viscosity, abrasiveness and required pressure. Confirm rotor/stator materials, shaft sealing, drive speed and dry-running and pressure protection for the duty. Catalogue maximum flow and pressure figures describe different configurations and are not a single operating point.

Choose the feed arrangement

• WB: horizontal direct-coupled arrangement.
• WS: horizontal bearing-seat arrangement.
• WSN: hopper feed for material with poor flow.
• WSP: hopper feed with a bridge-breaking arrangement.

Match the pump to the sludge

Confirm required flow and differential pressure together, then select speed, rotor/stator materials and shaft seal for solids, viscosity, temperature and chemical compatibility. Dry-running protection and pressure protection should be reviewed with the installation.

Key information for quotation

• Sludge characteristics
• Required flow rate
• Discharge pressure or head