Cargo Pump (Tanker)
critical
Known Models (3)
Framo / Alfa Laval (Norway/Sweden) Submerged Cargo Pump System
200-5,000 m³/h, Head 100-180 m
· Crude Oil / Product Oil / Chemicals
Voltage: 380-690V 3ph
type: Submerged Hydraulic Cargo Pump
size_range: ['SD100', 'SD150', 'SD200', 'SD250', 'SD300', 'SD350']
flow_range_m3h: [200, 5000]
head_range_m: [100, 180]
power_range_kw: [100, 2000]
variant_count_approx: 6
period_start_year: 1970
period_end_year: None
drive_type: Hydraulic (central HPU on deck)
construction: Submerged centrifugal pump in tank bottom, hydraulic motor, hydraulic power unit on deck
Common Failures:
- • Hydraulic motor seal failure causing oil contamination of cargo
- • Pump impeller erosion from abrasive cargo
- • Hydraulic hose deterioration from age/heat
- • HPU motor bearing failure after 30,000+ hrs
- • Cargo tank bulkhead penetration seal leak
Service: Hydraulic oil analysis quarterly. Pump performance test (Q-H curve) annually. HPU motor bearing inspection at drydock. Hydraulic hose replacement per schedule (7-10 years). Cargo stripping test before each discharge.
Spares: Framo/Alfa Laval (Bergen, Norway). Lead time: 2-6 weeks. Pump impellers: 4-8 weeks. Hydraulic motors: 3-6 weeks.
Marflex / Bornemann (Netherlands/Germany) Electric Submerged Cargo Pump
100-3,000 m³/h
· Crude Oil / Product Oil / Chemicals
Voltage: 380-690V 3ph
type: Electric Submerged Cargo Pump (Deepwell)
size_range: ['EDP-100', 'EDP-200', 'EDP-300', 'EDP-500']
flow_range_m3h: [100, 3000]
head_range_m: [80, 150]
power_range_kw: [50, 1000]
variant_count_approx: 4
period_start_year: 1990
period_end_year: None
drive_type: Electric (submerged motor or long-shaft)
construction: Electric motor + centrifugal pump, submerged in tank, Ex-rated
Common Failures:
- • Motor insulation failure from cargo exposure
- • Pump impeller wear from abrasive cargo
- • Cable gland seal failure causing cargo leak
- • Motor bearing failure from heat/vibration
- • VFD failure (if frequency-controlled)
Service: Motor insulation test annually. Pump performance test annually. Cable gland inspection quarterly. VFD maintenance per manufacturer.
Spares: Marflex (Dordrecht, Netherlands). Lead time: 3-6 weeks. Electric motors: 6-10 weeks.
Shinko Ind. (Japan) Vertical Cargo Pump
200-5,000 m³/h
· Crude Oil / Product Oil
Voltage: 380-440V 3ph
type: Vertical Deepwell Cargo Pump (Long-Shaft)
size_range: ['VCP-200', 'VCP-500', 'VCP-1000', 'VCP-3000']
flow_range_m3h: [200, 5000]
head_range_m: [100, 160]
power_range_kw: [100, 1500]
variant_count_approx: 4
period_start_year: 1975
period_end_year: None
drive_type: Electric (deck-mounted motor, long shaft to pump)
construction: Vertical long-shaft centrifugal, deck-mounted motor, shaft bearings in column
Common Failures:
- • Shaft bearing wear from vibration/alignment issues
- • Column pipe corrosion from cargo exposure
- • Mechanical seal failure at deck penetration
- • Impeller erosion from abrasive crude
- • Shaft coupling failure
Service: Shaft bearing inspection at drydock. Column pipe inspection every 5 years. Mechanical seal inspection annually. Performance test before each voyage.
Spares: Shinko (Hiroshima). Lead time: 3-5 weeks Asia.