Inert Gas Compressor (Tanker)
critical
IMO Required
IG system compressor for tanker cargo tank inerting
4000h
Service Interval
20 yr
Typical Lifetime
Typical Manufacturers
Atlas Copco
Hamworthy
Tanabe
Known Models (3)
Atlas Copco ZR 250
250 m3/h
· 55.0 kW
· Inert Gas (N2/CO2)
Common Failures:
- • Seal failure from corrosive gas
- • Intercooler corrosion
- • Bearing wear
Service: Oil-free type mandatory for IG service; corrosion-resistant materials.
Spares: Atlas Copco: Ventilsätze und Kolbenringe an Bord vorhalten. Lead time: 2-6 Wochen. Ölfilter und Dichtungssätze als Standard-Bordvorrat.
Hamworthy IG-55
200 m3/h
· 45.0 kW
· Inert Gas (N2/CO2)
Common Failures:
- • Gas scrubber fouling
- • Deck seal water level loss
- • Compressor valve failure
Service: Part of IG plant; coordinate maintenance with scrubber and deck seal.
Spares: Hamworthy: Ventilsätze und Kolbenringe an Bord vorhalten. Lead time: 2-6 Wochen. Ölfilter und Dichtungssätze als Standard-Bordvorrat.
Tanabe VLH-54 IG
180 m3/h
· 37.0 kW
· Inert Gas (N2/CO2)
Common Failures:
- • Valve corrosion
- • Piston ring wear from acidic condensate
- • Cooler tube pitting
Service: Reciprocating IG compressor; drain condensate after every use.
Spares: Tanabe: Ventilsätze und Kolbenringe an Bord vorhalten. Lead time: 2-6 Wochen. Ölfilter und Dichtungssätze als Standard-Bordvorrat.