Cargo Compressor (Reliquefaction)
critical
IMO Required
Reciprocating compressor for cargo reliquefaction on gas carriers.
8000h
Service Interval
Typical Manufacturers
Atlas Copco
Burckhardt
Known Models (2)
Atlas Copco Atlas Copco HGR Cargo Compressor
2-stage, 500 kW
· LNG / LPG / Gas Cargo
Common Failures:
- • Piston ring wear (gas leakage)
- • Suction/discharge valve plate cracking
- • Crankcase oil dilution by cargo gas
Service: Valve plate inspection every 4000 hrs. Piston ring replacement every 8000 hrs. Oil analysis monthly.
Spares: Atlas Copco: Spezialteile per Hersteller. Lead time: 4-8 Wochen. Gasdetektions-Sensoren an Bord.
Burckhardt Burckhardt Laby-GI Cargo Compressor
3-stage labyrinth piston, 800 kW
· LNG / LPG / Gas Cargo
Common Failures:
- • Labyrinth seal clearance increase
- • Crosshead guide wear
- • Capacity control actuator failure
Service: Labyrinth seal check every 8000 hrs. Crosshead clearance measurement at annual survey.
Spares: Burckhardt: Spezialteile per Hersteller. Lead time: 4-8 Wochen. Gasdetektions-Sensoren an Bord.