Graphalloy Bushings Working with Screw Compressor Pumps

20 April 2021

The Graphite Metallizing Corporation has announced that their Graphalloy bushings are working successfully with screw compressor pumps to compress gases. 

Graphalloy material is self-lubricating, non-galling, can handle low lubricity service and withstand temperatures from -400°F (-240°C) to +1000°F (+535°C). Its use with screw compressors is its latest successful application. 

In one application, Graphalloy bushings were used in a screw compressor in hydrogen gas service, a high speed, low load application for the bushings. Both aluminium bushings and plain bronze bushings had failed but the use of Graphalloy bushings was successful. 

Graphalloy is a graphite-metal alloy, available in over 100 grades with specific properties for many different engineering specifications. Common applications include pumps and wastewater and NSF and WRAS grades of Graphalloy material can be used in municipal well pumps and water treatment plant applications. 

Image credit: The Graphite Metallizing Corporation