Separator/Purifier
critical
Known Models (31)
Alfa Laval (Sweden) ALCAP S-Series
1,200-19,200 l/h
· Fuel Oil / Lube Oil
type: Disc-Stack Centrifugal Separator
size_range: ['S831', 'S836', 'S841', 'S861', 'S867', 'S871', 'S881', 'S896', 'S924', 'S935']
flow_range_m3h: [1.2, 19.2]
power_range_kw: [4, 37]
variant_count_approx: 10
period_start_year: 2000
period_end_year: None
drive_type: Electric
construction: Stainless steel bowl, cast iron frame
successor_series: None
Common Failures:
- • Bowl vibration from unbalanced disc stack after 6,000-8,000 hrs without overhaul
- • Operating water solenoid valve failure causing incomplete discharge
- • Main seal ring (O-ring) degradation from HFO residues, typical every 4,000-6,000 hrs
- • Gear wheel wear in worm gear drive after 15,000-20,000 hrs
Service: Bowl overhaul every 6,000-8,000 running hours. Disc stack cleaning every 2,000-4,000 hrs depending on fuel quality. Gear oil change every 3,000 hrs. Operating water system check weekly. Annual bearing inspection.
Spares: Keep onboard: complete O-ring kit, operating water valve, 1 set friction pads, bowl lock ring. Lead time for disc stack: 4-8 weeks.
Alfa Laval (Sweden) MAPX Series
900-15,000 l/h
· Fuel Oil / Lube Oil
type: Disc-Stack Centrifugal Separator (Purifier)
size_range: ['MAPX204', 'MAPX207', 'MAPX309', 'MAPX310', 'MAPX313']
flow_range_m3h: [0.9, 15.0]
power_range_kw: [5.5, 30]
variant_count_approx: 8
period_start_year: 1975
period_end_year: 2005
drive_type: Electric
construction: Cast iron frame, stainless steel bowl
successor_series: ALCAP S-Series
Common Failures:
- • Gravity disc erosion from HFO impurities, requires recalibration every 2,000-3,000 hrs
- • Horizontal shaft bearing failure after 20,000-25,000 hrs
- • Bowl hood seal leakage from thermal cycling
- • Worm gear wear causing excessive vibration after 15,000 hrs
Service: Bowl overhaul every 4,000-6,000 hrs. Gravity disc selection critical for correct water seal. Gear oil change every 2,000 hrs. Complete overhaul at drydock intervals (5 years).
Spares: Keep onboard: gravity disc set (full range), O-ring kit, operating water valve. Disc stacks becoming scarce — Alfa Laval recommends upgrade to ALCAP. Lead time: 6-10 weeks for obsolete parts.
Alfa Laval (Sweden) MOPX Series
900-12,000 l/h
· Lube Oil
type: Disc-Stack Centrifugal Separator (Clarifier)
size_range: ['MOPX205', 'MOPX207', 'MOPX209', 'MOPX213']
flow_range_m3h: [0.9, 12.0]
power_range_kw: [5.5, 22]
variant_count_approx: 5
period_start_year: 1978
period_end_year: 2005
drive_type: Electric
construction: Cast iron frame, stainless steel bowl
successor_series: ALCAP S-Series
Common Failures:
- • Sludge port clogging from heavy contamination in 2-stroke crankcase oil
- • Disc stack warping from thermal shock during cold start
- • Bowl vibration from uneven sludge accumulation after 3,000-4,000 hrs
- • Operating water supply pressure fluctuation causing premature discharge
Service: Bowl overhaul every 4,000-6,000 hrs. Clarifier mode requires no gravity disc — water seal not needed. Back-pressure check monthly. Sludge tank level monitoring daily.
Spares: Same frame as MAPX — many parts interchangeable. Keep onboard: O-ring kit, friction pads, 1 spare discharge valve. Disc stacks: order 3 months ahead for obsolete models.
Alfa Laval (Sweden) P-Flex Series
500-5,000 l/h
· Fuel Oil / Lube Oil
type: Disc-Stack Centrifugal Separator
size_range: ['P-Flex 30', 'P-Flex 45', 'P-Flex 60', 'P-Flex 90']
flow_range_m3h: [0.5, 5.0]
power_range_kw: [2.2, 7.5]
variant_count_approx: 4
period_start_year: 2018
period_end_year: None
drive_type: Electric
construction: Compact modular design, stainless steel bowl
successor_series: None
Common Failures:
- • Touchscreen HMI software glitches requiring reboot
- • Sealing ring wear on bowl faster than expected on heavy HFO applications
- • Operating water filter clogging in tropical waters
Service: Bowl overhaul every 8,000 hrs (extended interval due to improved design). Integrated monitoring system alerts for maintenance. Remote diagnostics via Alfa Laval Performance Agreement available.
Spares: Alfa Laval proprietary parts only — no third-party alternatives yet. Keep onboard: O-ring kit, operating water solenoid. Lead time: 2-4 weeks via Alfa Laval service network.
Alfa Laval (Sweden) MAB Series
200-1,500 l/h
· Fuel Oil / Lube Oil
type: Disc-Stack Centrifugal Separator (Semi-Hermetic)
size_range: ['MAB103', 'MAB104']
flow_range_m3h: [0.2, 1.5]
power_range_kw: [1.5, 3]
variant_count_approx: 2
period_start_year: 1970
period_end_year: 2000
drive_type: Electric
construction: Cast iron frame, semi-hermetic bowl
successor_series: P-Flex Series
Common Failures:
- • Bowl bottom seal failure from age and HFO residues
- • Motor bearing wear after 15,000-20,000 hrs
- • Disc stack clogging from asphaltene-rich fuels
- • Feed pump relief valve stuck from sediment
Service: Bowl overhaul every 3,000-5,000 hrs. Very compact, accessible for onboard maintenance. Motor bearing replacement at 15,000-20,000 hrs.
Spares: Discontinued — aftermarket parts from specialist rebuilders (Maritec, PureSep). Lead time: 4-8 weeks. Complete reconditioned units available.
Alfa Laval (Sweden) WHPX Series
1,000-8,000 l/h
· Fuel Oil / Lube Oil
type: Disc-Stack Centrifugal Separator
size_range: ['WHPX405', 'WHPX407', 'WHPX410', 'WHPX413']
flow_range_m3h: [1.0, 8.0]
power_range_kw: [4, 15]
variant_count_approx: 4
period_start_year: 1965
period_end_year: 1985
drive_type: Electric
construction: Cast iron, manual bowl operation
successor_series: MAPX Series
Common Failures:
- • Manual bowl lock ring thread damage from improper tightening
- • Bowl vibration — no automatic balancing system
- • Bearing failure after 10,000-15,000 hrs
- • Disc stack scoring from foreign objects
Service: Manual cleaning at fixed intervals (every 2-4 hrs of operation on HFO). Bowl overhaul every 3,000 hrs. Obsolete — no formal service program.
Spares: Completely obsolete. Parts only from scrapped units or specialist reconditioning shops. Any remaining WHPX units should be replaced.
Alfa Laval (Sweden) S/P-Separator (EPC Range)
5,000-50,000 l/h
· Fuel Oil (VLSFO/HFO)
type: Disc-Stack Centrifugal Separator for 0.50% S fuels
size_range: ['S831', 'S861', 'S896', 'S924']
flow_range_m3h: [5.0, 50.0]
power_range_kw: [11, 55]
variant_count_approx: 4
period_start_year: 2019
period_end_year: None
drive_type: Electric
construction: Enhanced disc stack geometry for VLSFO compatibility
successor_series: None
Common Failures:
- • VLSFO compatibility issues — wax precipitation clogging at low temperatures
- • Cat fines passage at higher throughput settings
- • Sludge discharge frequency increased with unstable VLSFO blends
Service: IMO 2020 specific: flow rate adjustment per fuel quality. Cat fines monitoring downstream mandatory. Enhanced Purifier Concept (EPC) configuration requires Alfa Laval commissioning engineer for setup.
Spares: Same hardware as ALCAP S-Series but with EPC software and disc configuration. Standard Alfa Laval parts. Lead time: 2-4 weeks.
Alfa Laval (Sweden) FOPX Series
2,000-30,000 l/h
· Fuel Oil
type: Disc-Stack Centrifugal Separator (High-Capacity Purifier)
size_range: ['FOPX605', 'FOPX607', 'FOPX609', 'FOPX613']
flow_range_m3h: [2.0, 30.0]
power_range_kw: [7.5, 45]
variant_count_approx: 4
period_start_year: 1985
period_end_year: 2010
drive_type: Electric
construction: Heavy-duty cast iron frame, large-diameter bowl
successor_series: ALCAP S-Series (S924/S935)
Common Failures:
- • Gravity disc erosion from high-cat-fine HFO
- • Main bearing failure after 20,000-25,000 hrs
- • Bowl hood vibration from uneven sludge loading
- • Worm gear tooth pitting after 15,000+ hrs
Service: Bowl overhaul every 5,000-7,000 hrs. Gravity disc selection critical for fuel density range. Complete overhaul at drydock. Large footprint — engine room crane needed for bowl lift.
Spares: Discontinued but Alfa Laval maintains stock for 10+ years post-discontinuation. Bowl components: 6-10 weeks lead time. Upgrade to ALCAP S924/S935 recommended.
Alfa Laval (Sweden) LOPX Series
2,000-20,000 l/h
· Lube Oil
type: Disc-Stack Centrifugal Separator (Lube Oil Clarifier)
size_range: ['LOPX605', 'LOPX609', 'LOPX613']
flow_range_m3h: [2.0, 20.0]
power_range_kw: [7.5, 37]
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
Common Failures:
- • Sludge port blockage from heavy LO contamination in 2-stroke systems
- • Bowl vibration after long intervals without overhaul (>8,000 hrs)
- • Operating water system failure causing incomplete bowl closure
Service: Bowl overhaul every 6,000-8,000 hrs. Clarifier mode — no gravity disc. Back-pressure monitoring critical. System oil sample analysis monthly.
Spares: Discontinued — same frame as FOPX, many common parts. Alfa Laval recommends ALCAP upgrade. Lead time: 6-10 weeks for bowl components.
Alfa Laval (Sweden) PureNOx Series
1,500-8,000 l/h
· Exhaust Gas Recirculation (EGR) Water
type: Disc-Stack Centrifugal Separator for EGR water treatment
size_range: ['PureNOx 1500', 'PureNOx 4000', 'PureNOx 8000']
flow_range_m3h: [1.5, 8.0]
power_range_kw: [5.5, 22]
variant_count_approx: 3
period_start_year: 2016
period_end_year: None
drive_type: Electric
construction: Acid-resistant materials, closed-loop operation
successor_series: None
Common Failures:
- • EGR water pH drop causing corrosive conditions in bowl
- • Sludge discharge frequency higher than expected due to soot loading
- • Sealing ring degradation from acidic EGR water
Service: Bowl overhaul every 4,000-6,000 hrs. EGR water pH monitoring critical (maintain >6.5). NaOH dosing system calibration monthly. Sludge tank capacity check daily.
Spares: Alfa Laval proprietary. Acid-resistant O-ring kits mandatory. Lead time: 3-5 weeks. EGR-specific disc stacks — not interchangeable with standard S-Series.
Alfa Laval (Sweden) PureBallast Series
150-3,000 m³/h
· Ballast Water
type: UV-based Ballast Water Management System
size_range: ['PB 150', 'PB 300', 'PB 600', 'PB 1000', 'PB 1500', 'PB 3000']
flow_range_m3h: [150, 3000]
power_range_kw: [15, 300]
variant_count_approx: 6
period_start_year: 2006
period_end_year: None
drive_type: Electric
construction: UV reactor, automatic filter, compact skid
successor_series: None
Common Failures:
- • UV lamp failure — rated life 8,000 hrs, actual varies with water quality
- • Automatic filter clogging in silty waters (>50 NTU)
- • UV sensor fouling requiring cleaning every 500-1,000 hrs
- • Power supply module failure on older PB 2.0 versions
Service: UV lamp replacement every 8,000 hrs or annual. Filter backwash system check monthly. UV transmittance test before each ballast operation. IMO D-2 compliance testing at flag state survey.
Spares: UV lamps: keep 2 sets onboard. Filter elements: 1 set. Lead time: 2-4 weeks via Alfa Laval BWMS service. UV lamps available from PureBallast-authorized suppliers.
Alfa Laval (Sweden) BWPX Series (Sludge Separator)
500-5,000 l/h
· Bilge Water / Sludge
type: Disc-Stack Centrifugal Separator for sludge/bilge treatment
size_range: ['BWPX307', 'BWPX309']
flow_range_m3h: [0.5, 5.0]
power_range_kw: [4, 11]
variant_count_approx: 2
period_start_year: 1995
period_end_year: None
drive_type: Electric
construction: Cast iron frame, stainless steel bowl, sludge-duty disc configuration
successor_series: None
Common Failures:
- • Sludge port blockage from heavy bilge contamination (rags, debris)
- • Bowl vibration from uneven sludge loading
- • Operating water system failure from bilge water contamination
Service: Bowl overhaul every 3,000-5,000 hrs depending on sludge quality. Pre-settling/pre-filtering strongly recommended. Daily sludge tank management.
Spares: Standard Alfa Laval parts — same base design as MAPX/FOPX. Lead time: 2-4 weeks.
Filtrex (Spain) FX Marine Separator
300-2,000 l/h
· Fuel Oil / Lube Oil
type: Disc-Stack Centrifugal Separator
size_range: ['FX-500', 'FX-1000', 'FX-2000']
flow_range_m3h: [0.3, 2.0]
power_range_kw: [1.5, 5.5]
variant_count_approx: 3
period_start_year: 2000
period_end_year: None
drive_type: Electric
construction: Compact stainless steel design
successor_series: None
Common Failures:
- • Bowl vibration on HFO applications — designed primarily for MDO/MGO
- • Feed pump seal failure from high-viscosity fuels
- • Control panel component failures in humid environments
Service: Bowl overhaul every 4,000-6,000 hrs. Primarily designed for distillate fuels — HFO operation reduces maintenance intervals by 30-50%. Service via Filtrex Spain.
Spares: Filtrex direct. Lead time: 3-6 weeks. Small supplier — limited stock on shelf. No compatibility with other OEMs.
Flottweg (Germany) AC Series
500-5,000 l/h
· Fuel Oil / Lube Oil / Bilge Water
type: Disc-Stack Centrifugal Separator
size_range: ['AC 1000', 'AC 1500', 'AC 2000', 'AC 3500']
flow_range_m3h: [0.5, 5.0]
power_range_kw: [3, 11]
variant_count_approx: 4
period_start_year: 2005
period_end_year: None
drive_type: Electric
construction: Stainless steel bowl, belt drive
successor_series: None
Common Failures:
- • Belt drive tension loss requiring re-tensioning every 2,000-3,000 hrs
- • Bowl vibration from incorrect disc stack reassembly
- • Operating water system lime scale buildup in hard-water regions
Service: Bowl overhaul every 6,000-8,000 hrs. Belt tension check every 2,000 hrs. Belt replacement every 8,000 hrs or as needed.
Spares: Flottweg direct supply. Keep onboard: belt set, O-ring kit, operating water valve. Lead time: 2-4 weeks in Europe.
Fuji Filter Manufacturing (Japan) FPM Series
800-10,000 l/h
· Fuel Oil / Lube Oil
type: Disc-Stack Centrifugal Separator
size_range: ['FPM-10', 'FPM-15', 'FPM-20', 'FPM-30']
flow_range_m3h: [0.8, 10.0]
power_range_kw: [4, 22]
variant_count_approx: 4
period_start_year: 1990
period_end_year: None
drive_type: Electric
construction: Cast iron/stainless steel, gear drive
successor_series: None
Common Failures:
- • Bowl vibration from disc stack contamination after 5,000-6,000 hrs
- • Gear drive oil leak from shaft seal wear
- • Control system relay failures on older models
Service: Bowl overhaul every 5,000-6,000 hrs. Gear oil change every 2,500 hrs. Service available through Fuji Japan and authorized agents in Singapore, Busan.
Spares: Fuji direct supply. Lead time: 3-5 weeks in Asia, 8-12 weeks elsewhere. Limited compatibility with other OEM parts.
GEA Westfalia (Germany) OSC Series
1,500-20,000 l/h
· Fuel Oil / Lube Oil
type: Disc-Stack Centrifugal Separator
size_range: ['OSC 4', 'OSC 15', 'OSC 25', 'OSC 35', 'OSC 60']
flow_range_m3h: [1.5, 20.0]
power_range_kw: [5.5, 37]
variant_count_approx: 6
period_start_year: 1995
period_end_year: None
drive_type: Electric
construction: Cast iron frame, duplex stainless steel bowl
successor_series: None
Common Failures:
- • Clutch plate wear in friction clutch drive after 10,000-15,000 hrs
- • Bowl vibration from out-of-balance disc stack, typically after poor reassembly
- • Sludge discharge incomplete due to worn sliding bowl bottom
- • Control unit (unitrol) component failure on older versions
Service: Bowl overhaul every 6,000-8,000 hrs. Friction clutch inspection every 4,000 hrs. Gear oil (synthetic) change every 3,000 hrs. Unitrol control calibration annually.
Spares: Keep onboard: complete O-ring set, clutch plates, operating water valve. GEA service network smaller than Alfa Laval — plan 4-6 weeks lead time for bowl components.
GEA Westfalia (Germany) OSD Series
500-8,000 l/h
· Fuel Oil / Lube Oil / Bilge Water
type: Disc-Stack Centrifugal Separator
size_range: ['OSD 6', 'OSD 18', 'OSD 35']
flow_range_m3h: [0.5, 8.0]
power_range_kw: [3, 15]
variant_count_approx: 3
period_start_year: 1985
period_end_year: 2010
drive_type: Electric
construction: Cast iron frame, stainless steel bowl
successor_series: OSC Series
Common Failures:
- • Bowl vibration and bearing wear after 15,000-20,000 hrs
- • Gravity disc erosion on HFO service
- • Feed pump coupling failure from misalignment
- • Worm gear tooth wear causing noise after 20,000 hrs
Service: Bowl overhaul every 4,000-6,000 hrs. Gravity disc selection per fuel density table. Complete overhaul recommended at drydock.
Spares: Discontinued — parts via GEA spare parts service or third-party reconditioning (Turbofilt, etc.). Lead time: 6-12 weeks for bowl components.
GEA Westfalia (Germany) OSE Series
3,000-25,000 l/h
· Fuel Oil / Lube Oil
type: Disc-Stack Centrifugal Separator (High-Performance)
size_range: ['OSE 20', 'OSE 30', 'OSE 50', 'OSE 80']
flow_range_m3h: [3.0, 25.0]
power_range_kw: [11, 55]
variant_count_approx: 4
period_start_year: 2015
period_end_year: None
drive_type: Electric - Direct Drive
construction: Duplex stainless steel bowl, direct drive (no gearbox)
successor_series: None
Common Failures:
- • Direct drive motor bearing failure — higher cost than gearbox repair
- • Bowl vibration sensor false alarms during heavy weather
- • Touchscreen HMI software updates required for VLSFO compatibility
Service: Bowl overhaul every 8,000-10,000 hrs (extended due to direct drive). No gear oil changes needed. Remote monitoring via GEA InsightPartner available.
Spares: GEA service network. Keep onboard: O-ring kit, vibration sensor spare. Lead time: 3-5 weeks. Motor bearing: 6-8 weeks.
GEA Westfalia (Germany) BallastMaster ultraV
100-6,000 m³/h
· Ballast Water
type: UV-based Ballast Water Management System
size_range: ['ultraV 100', 'ultraV 300', 'ultraV 600', 'ultraV 1500', 'ultraV 3000', 'ultraV 6000']
flow_range_m3h: [100, 6000]
power_range_kw: [10, 400]
variant_count_approx: 6
period_start_year: 2013
period_end_year: None
drive_type: Electric
construction: Medium-pressure UV reactor, automatic backwash filter
successor_series: None
Common Failures:
- • UV lamp quartz sleeve fouling in turbid waters
- • Filter differential pressure sensor drift
- • UV dose calculation software inconsistencies requiring updates
Service: UV lamp replacement every 6,000-8,000 hrs. Quartz sleeve cleaning monthly. System software update at annual survey. Filter inspection quarterly.
Spares: GEA service network. UV lamps: keep 1 set onboard. Lead time: 2-4 weeks. USCG Type Approval for some models.
Hutchison Hayes (USA) HH Centrifuge Series
500-5,000 l/h
· Fuel Oil / Lube Oil / Drilling Mud
type: Disc-Stack / Decanter Centrifugal Separator
size_range: ['HH-200', 'HH-400', 'HH-600']
flow_range_m3h: [0.5, 5.0]
power_range_kw: [5.5, 22]
variant_count_approx: 3
period_start_year: 1985
period_end_year: None
drive_type: Electric
construction: Stainless steel, heavy-duty offshore design
successor_series: None
Common Failures:
- • Bowl vibration from imbalance in harsh offshore environments
- • Bearing failure accelerated by vessel motion (pitch/roll)
- • Feed pump cavitation from viscous drilling mud
Service: Bowl overhaul every 4,000-6,000 hrs. Offshore environment requires more frequent bearing checks (every 1,000 hrs). Annual reconditioning recommended.
Spares: Hutchison Hayes direct (Houston, TX). Lead time: 2-4 weeks USA, 6-8 weeks international. Some parts interchangeable with Alfa Laval.
Kangrim Heavy Industries (South Korea) KF/KL Series
800-15,000 l/h
· Fuel Oil / Lube Oil
type: Disc-Stack Centrifugal Separator
size_range: ['KF-10', 'KF-15', 'KF-30', 'KL-10', 'KL-15', 'KL-30']
flow_range_m3h: [0.8, 15.0]
power_range_kw: [4, 30]
variant_count_approx: 6
period_start_year: 1995
period_end_year: None
drive_type: Electric
construction: Cast iron frame, stainless steel bowl
successor_series: None
Common Failures:
- • Bowl vibration — disc stack quality inconsistencies on older production batches
- • Control system software bugs requiring firmware updates
- • Operating water supply line clogging from sediment
- • Worm gear noise after 15,000 hrs
Service: Bowl overhaul every 5,000-7,000 hrs. Control firmware update recommended at annual survey. Worm gear oil change every 3,000 hrs.
Spares: Kangrim service network limited — mainly Korea, Singapore, UAE. Lead time: 3-6 weeks. Some parts compatible with Samgong SPC.
Mitsubishi Kakoki Kaisha / MHI (Japan) SJ Series
1,200-25,000 l/h
· Fuel Oil / Lube Oil
type: Disc-Stack Centrifugal Separator
size_range: ['SJ10F', 'SJ15F', 'SJ20F', 'SJ30F', 'SJ40F', 'SJ60F', 'SJ100F']
flow_range_m3h: [1.2, 25.0]
power_range_kw: [5.5, 45]
variant_count_approx: 7
period_start_year: 1985
period_end_year: None
drive_type: Electric
construction: Cast iron frame, stainless steel bowl, gear drive
successor_series: None
Common Failures:
- • Bowl vibration from disc stack imbalance — critical after 5,000-7,000 hrs
- • Worm gear set wear after 20,000 hrs, causes higher oil temperature
- • Operating water solenoid valve corrosion from seawater-cooled supply
- • Control panel relay failures on older SJ-F models
Service: Bowl overhaul every 5,000-7,000 hrs. Worm gear oil change every 2,500 hrs. Operating water strainer cleaning daily. Complete overhaul at drydock or 20,000 hrs.
Spares: MHI/Mitsubishi service depots in major Asian ports. Keep onboard: O-ring kit, operating water valve, gravity disc set. Lead time Japan: 3-5 weeks; Europe: 6-8 weeks.
Mitsubishi Kakoki Kaisha / MHI (Japan) SJ Hi-Sep Series
1,500-20,000 l/h
· Fuel Oil / Lube Oil
type: Disc-Stack Centrifugal Separator with integrated water detection
size_range: ['SJ15T', 'SJ20T', 'SJ30T', 'SJ60T']
flow_range_m3h: [1.5, 20.0]
power_range_kw: [7.5, 37]
variant_count_approx: 4
period_start_year: 2010
period_end_year: None
drive_type: Electric
construction: Stainless steel bowl, integrated water transducer
successor_series: None
Common Failures:
- • Water detection transducer calibration drift after 2 years
- • Touchscreen HMI failure from vibration exposure
- • Bowl vibration from disc stack imbalance after 6,000-8,000 hrs
Service: Bowl overhaul every 8,000 hrs. Water transducer calibration every 6 months. Remote monitoring via MHI Marine Connect optional.
Spares: MHI proprietary — no third-party alternatives. Keep onboard: O-ring kit, transducer spare. Lead time: 3-6 weeks via MHI network.
Mitsubishi Kakoki Kaisha / MHI (Japan) SJ-C Series (Clarifier)
1,000-18,000 l/h
· Lube Oil
type: Disc-Stack Centrifugal Separator (Clarifier)
size_range: ['SJ10C', 'SJ15C', 'SJ20C', 'SJ30C']
flow_range_m3h: [1.0, 18.0]
power_range_kw: [5.5, 37]
variant_count_approx: 4
period_start_year: 1988
period_end_year: None
drive_type: Electric
construction: Cast iron frame, stainless steel bowl, clarifier disc configuration
successor_series: None
Common Failures:
- • Sludge port clogging from heavy LO contamination
- • Bowl vibration from disc stack imbalance
- • Operating water system malfunction on older control versions
Service: Bowl overhaul every 5,000-7,000 hrs. Same service intervals as SJ-F fuel purifiers. LO quality monitoring via onboard oil analysis recommended.
Spares: Common parts with SJ-F series — same bowl, different disc stack configuration. MHI service network in Asian ports. Lead time: 3-5 weeks.
Nanjing Separation Engineering (China) PDSD Series
1,000-20,000 l/h
· Fuel Oil / Lube Oil
type: Disc-Stack Centrifugal Separator
size_range: ['PDSD 2000', 'PDSD 5000', 'PDSD 10000', 'PDSD 20000']
flow_range_m3h: [1.0, 20.0]
power_range_kw: [5.5, 37]
variant_count_approx: 4
period_start_year: 2008
period_end_year: None
drive_type: Electric
construction: Cast iron/stainless steel, gear drive
successor_series: None
Common Failures:
- • Production quality inconsistency — bowl balancing varies between batches
- • Control system reliability issues on early models (pre-2015)
- • Disc stack dimensional tolerances looser than Western/Japanese OEMs
Service: Bowl overhaul every 4,000-5,000 hrs (shorter intervals recommended due to quality variability). Service through NSEC China network.
Spares: NSEC direct supply, very competitive pricing. Lead time: 2-3 weeks in China. Not compatible with Alfa Laval or MKK parts.
Pieralisi (Italy) FPC Series
500-6,000 l/h
· Fuel Oil / Lube Oil / Bilge Water
type: Disc-Stack Centrifugal Separator
size_range: ['FPC 6', 'FPC 12', 'FPC 18', 'FPC 24']
flow_range_m3h: [0.5, 6.0]
power_range_kw: [3, 15]
variant_count_approx: 4
period_start_year: 1990
period_end_year: None
drive_type: Electric
construction: Cast iron frame, stainless steel bowl
successor_series: None
Common Failures:
- • Bowl vibration from disc stack misalignment after maintenance
- • Operating water valve seat wear from Mediterranean hard water
- • Feed pump seal failure from HFO abrasion
Service: Bowl overhaul every 5,000-7,000 hrs. Italian Navy specifications require 4,000 hr intervals. Annual complete check at authorized service station.
Spares: Pieralisi service network in Mediterranean region. Keep onboard: O-ring kit, feed pump seals. Lead time: 3-6 weeks, longer outside Mediterranean.
Samgong (South Korea) SPC Series
1,000-18,000 l/h
· Fuel Oil / Lube Oil
type: Disc-Stack Centrifugal Separator
size_range: ['SPC-10', 'SPC-15', 'SPC-20', 'SPC-30', 'SPC-60']
flow_range_m3h: [1.0, 18.0]
power_range_kw: [5.5, 37]
variant_count_approx: 5
period_start_year: 1990
period_end_year: None
drive_type: Electric
construction: Cast iron frame, stainless steel bowl
successor_series: None
Common Failures:
- • Bowl vibration from disc stack imbalance after 5,000-6,000 hrs
- • Operating water valve corrosion in tropical climates
- • Gear oil overheating from insufficient cooling water supply
- • Control panel relay failures on older models
Service: Bowl overhaul every 5,000-6,000 hrs. Gear oil change every 2,500 hrs. Samgong service depots in Busan, Singapore, Shanghai.
Spares: Samgong direct or via Korean ship supply agents. Keep onboard: O-ring kit, operating water valve. Lead time: 2-4 weeks in Asia, 6-8 weeks in Europe.
Sasakura Engineering (Japan) SPC Marine Separator
500-5,000 l/h
· Fuel Oil / Lube Oil
type: Disc-Stack Centrifugal Separator
size_range: ['SPC-5', 'SPC-10', 'SPC-15']
flow_range_m3h: [0.5, 5.0]
power_range_kw: [3, 11]
variant_count_approx: 3
period_start_year: 1980
period_end_year: 2005
drive_type: Electric
construction: Cast iron/stainless steel
successor_series: None
Common Failures:
- • Bowl vibration from disc stack contamination
- • Operating water valve corrosion
- • Bearing wear after 15,000 hrs
Service: Bowl overhaul every 4,000-6,000 hrs. Sasakura's primary business is freshwater generators — separator service availability limited.
Spares: Sasakura Japan. Lead time: 4-8 weeks. Some parts compatible with MKK SJ series (same era, similar design).
Shanghai CSSC Pielstick (China) YLX Series
1,000-15,000 l/h
· Fuel Oil / Lube Oil
type: Disc-Stack Centrifugal Separator
size_range: ['YLX208', 'YLX309', 'YLX413']
flow_range_m3h: [1.0, 15.0]
power_range_kw: [5.5, 30]
variant_count_approx: 3
period_start_year: 2005
period_end_year: None
drive_type: Electric
construction: Cast iron/stainless steel, gear drive
successor_series: None
Common Failures:
- • Bowl vibration from production tolerance issues on early batches
- • Control panel component quality varies between production runs
- • Disc stack warping from thermal cycling
Service: Bowl overhaul every 4,000-6,000 hrs. Quality has improved since 2015 production batches. Service through CSSC network in Chinese ports.
Spares: CSSC direct supply. Very competitive pricing. Lead time: 2-4 weeks in China, 6-10 weeks international. Not interchangeable with Alfa Laval.
Turbofilt (Germany) TF Marine Series
300-3,000 l/h
· Fuel Oil / Lube Oil
type: Disc-Stack Centrifugal Separator (reconditioned/remanufactured)
size_range: ['TF-500', 'TF-1000', 'TF-2000', 'TF-3000']
flow_range_m3h: [0.3, 3.0]
power_range_kw: [2.2, 7.5]
variant_count_approx: 4
period_start_year: 2000
period_end_year: None
drive_type: Electric
construction: Rebuilt Alfa Laval/Westfalia bowls with new control systems
successor_series: None
Common Failures:
- • Mix of old bowl mechanics and new electronics can cause compatibility issues
- • Bowl seal quality varies depending on reconditioning batch
- • Control system wiring different from OEM — complicates troubleshooting
Service: Bowl overhaul intervals per original OEM specification. Electronics maintained separately per Turbofilt manual. Annual inspection recommended.
Spares: Turbofilt supplies custom kits. Some OEM parts fit. Lead time: 2-4 weeks from Turbofilt (Hamburg).
Westfalia / GEA (Germany) OTA/OTB Series
500-5,000 l/h
· Fuel Oil / Lube Oil
type: Disc-Stack Centrifugal Separator
size_range: ['OTA7', 'OTA14', 'OTB20', 'OTB30']
flow_range_m3h: [0.5, 5.0]
power_range_kw: [3, 11]
variant_count_approx: 4
period_start_year: 1975
period_end_year: 1998
drive_type: Electric
construction: Cast iron, manual/semi-automatic discharge
successor_series: OSD Series
Common Failures:
- • Manual discharge mechanism jam from sludge buildup
- • Bowl vibration — no balancing system on earlier OTA models
- • Bearing failure after 12,000-15,000 hrs
- • Feed pump coupling shear pins breaking from sludge slugs
Service: Semi-automatic discharge models: overhaul every 3,000-4,000 hrs. Manual OTA: cleaning every 2-4 hrs of operation on HFO. Obsolete, minimal OEM support.
Spares: Discontinued. Parts from GEA legacy stock or used-parts market. Some components remanufactured by Turbofilt and others.