"> Alfa Laval (Sweden) LOPX Series
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Alfa Laval (Sweden)

LOPX Series

The LOPX series was the clarifier counterpart to the FOPX purifier series for lube oil applications on large ocean-going vessels. Single-phase operation (no water interface) for continuous cleaning of system oil from 2-stroke main engines. Production discontinued approximately 2008, successor is the ALCAP S series. Still in use on older VLCCs and large container vessels.

Alfa Laval (Sweden) LOPX Series
2,000-20,000 l/h
Capacity
Lube Oil
Medium

Components & Design

Component data being added…

Technical Data

type Disc-Stack Centrifugal Separator (Lube Oil Clarifier)
variant count approx 3
period start year 1985
period end year 2008
drive type Electric
construction Heavy-duty cast iron, clarifier disc stack
successor series ALCAP S-Series

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Common failures & inspection points

Schuessel-/Teller-Erosion

Paring disc, top disc, mud ports check for dull spots/wash-out; erosion depth >0.2 mm (bowl/cap) or >0.5 mm (other) = replacement.

Dichtungsringe

Leaks at cover/bolted joints/mud outlet; gasket rings (EPDM) change every 6000–8000 h, original parts only.

Kugellager

Check vibration/noise; bearings change in pairs every 12000–16000 h, lubricate correctly; do not increase throughput during vibration.

Riemen & Kupplung

Belts every 3000 h (tension per manufacturer), cracks/wear; coupling check for axial play (>0.5 mm = fault), corrosion.

Stromaufnahme/Verschmutzung

Monitor current consumption nominal/actual; clean bowl during shutdown; check pre-filtration + lubrication; limit sludge volume.

Type-general inspection and maintenance points for this equipment category — not model-specific.

Service & Maintenance

Bowl overhaul every 6,000-8,000 hrs. Clarifier mode — no gravity disc. Back-pressure monitoring critical. System oil sample analysis monthly.

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Replacement Parts

Discontinued — same frame as FOPX, many common parts. Alfa Laval recommends ALCAP upgrade. Lead time: 6-10 weeks for bowl components.
Equipment Model #37673 · discontinued