ES-Series (Eccentric Screw)
Bornemann (ITT Bornemann) ES-Series (Eccentric Screw) — Industrial fuel oil and heating oil transfer.
Components & Design
Component data being added…
Technical Data
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Common failures & inspection points
Verify NPSH available exceeds pump NPSH required (typically 1.5-4m for Bornemann pumps); inspect suction line for blockages, check fuel tank level, confirm no air leaks in inlet lines
Visually inspect mechanical seal housing for external leaks; monitor seal cavity temperature; confirm proper seal material selection for fuel type (API-682 compliance); check seal lubrication reservoir level
Monitor pump vibration and temperature at bearing housings; check shaft alignment with dial indicator (TIR tolerance typically <0.05mm); inspect bearing lubrication (oil level and condition) every 500-1000 hours
Measure discharge pressure drop vs. specification; inspect rotor surface for scoring or wear (endoscopy if possible); verify stator elastomer material compatibility with fuel type; replace rotor/stator assembly when wear exceeds 10% of design tolerance
Inspect inlet strainer/filter mesh condition monthly; measure pressure drop across strainer; verify fuel cleanliness per ISO 4406 code (recommend <18/16/13 for fuel pumps); change strainer element when pressure drop exceeds manufacturer specification (typically 0.3-0.5 bar)
Type-general inspection and maintenance points for this equipment category — not model-specific.
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