A Screw Pump can transfer fluids or sludge under controlled flow when its type and materials match process conditions.
Positive-displacement principle
In a progressive-cavity screw pump, a rotor turns inside a stator and forms cavities that travel from suction to discharge. This principle differs from a centrifugal pump.
Matching the feed
Viscosity, solids, abrasiveness, temperature, chemistry, flow, pressure, and shear sensitivity should be known. The screw-pump label alone does not determine suitability.
Suction and protection
Suction condition, dry-running protection, pressure protection, valve position, and piping affect operation. Start and stop procedures should follow the specific model manual.
Condition-based maintenance
Leakage, changes in flow, pressure, noise, vibration, and temperature help guide inspection of the rotor, stator, seal, coupling, and drive.
