Cargo Compressor (Reliquefaction)
critical
IMO Required
2 models total
Reciprocating compressor for cargo reliquefaction on gas carriers.
8000h
Service Interval
Typical Manufacturers
Atlas Copco
Burckhardt
2 manufacturers · 2 models
Atlas Copco
1
Atlas Copco HGR Cargo Compressor
2-stage, 500 kW
· LNG / LPG / Gas Cargo
Common Failures & Inspection Points
- 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.
Spare Parts: Atlas Copco: Spezialteile per Hersteller. Lead time: 4-8 Wochen. Gasdetektions-Sensoren an Bord.
Burckhardt
1
Burckhardt Laby-GI Cargo Compressor
3-stage labyrinth piston, 800 kW
· LNG / LPG / Gas Cargo
Common Failures & Inspection Points
- Labyrinth seal clearance increase
- Crosshead guide wear
- Capacity control actuator failure
Service: Labyrinth seal check every 8000 hrs. Crosshead clearance measurement at annual survey.
Spare Parts: Burckhardt: Spezialteile per Hersteller. Lead time: 4-8 Wochen. Gasdetektions-Sensoren an Bord.