The world’s first in-service oil-free reciprocating high-pressure fuel gas compressor, Burckhardt Compression (Burckhardt)’s Laby-GI Compressor type LP250 has reached 10,000 hours of uninterrupted operation.

Installed on a 174,000 cubic metre (cbm) liquefied natural gas (LNG) carrier, the LP250 and Burckhardt’s compressor systems in general are integral to managing the boil-off gas produced as LNG heats up during storage and transportation.

This is achieved by the 5-stage fuel gas compressor system being able to handle a boil-off gas flow of up to 4,700 kg per hour.

The LP250 is capable of compressing gas to 300 bar in a large, ring-sealed compressor system without cylinder lubrication – made possible through dry-running sealing technology, ideal for the handling of gases at low temperature and high pressure.

Due to the oil-free nature of the technology, maintenance intervals for the high-pressure sealing technology are stated by the company to reach 8,000 operating hours.

The gas-tight design of the Laby-GI Compressor allows for zero emission discharge and also the simultaneous fuel gas supply to low-pressure 4-stroke auxiliary engines and high-pressure gas supply to the 2-stroke main engines and a dedicated high-pressure re-liquefaction system.