Progressive Cavity Pump

• Monitor flow, pressure, speed, and motor current. Fluctuations may signal medium changes, blockages, or wear; high current indicates jams/overloads. Check vibration with detectors—abnormalities from misalignment or bearing damage require shutdown. Listen for odd noises (friction/impact) indicating wear or poor lubrication.
• Maintain lubrication: Check oil level/quality; replace oil per schedule. Grease bearings appropriately. For seals: Adjust mechanical seal bolts for minor leaks, replace elements if severe. For packing seals, ensure slight leakage (few drops/min) for lubrication. Daily exterior checks: Fix leaks and keep the pump clean.

• Weekly: Inspect motor terminals, clean inlet filters, check couplings.
• Monthly: Measure insulation resistance, check bearing temperature, test controls.
• Quarterly: Disassemble to check rotor/stator wear, clean parts, overhaul seals.
• Annually: Fully disassemble to inspect all components (bearings, shafts), check foundations, and recommission.

• Long shutdown: Empty and clean the pump, rust-proof exposed parts, and hand-turn regularly to prevent component adhesion.
• If medium properties (viscosity, corrosiveness) change, adjust parameters or replace suitable components. For sudden failures (motor burnout, jamming, pipe rupture), stop the pump, cut power/medium, fix issues (replace parts, clear debris), and analyze causes.