GraphalloyGRAPHALLOY wear rings and bushings from Graphite Metallizing Corporation are an alternative to standard metal stationary and rotating wear parts in pumps for CO2 service in oil field applications. The ability to operate without additional lubrication is important in CO2 injection applications because CO2 has low lubricity. Standard metal wear parts rely on the lubricity of the liquid being pumped for proper operation so they are prone to failures in pumps used to inject CO2. In addition, due to high-suction pressure required to keep CO2 as a dense phase liquid, flashing is always a possibility. GRAPHALLOY wear rings and bushings operate at longer intervals without the need for replacements or maintenance, which can reduce downtime and maintenance expenses. GRAPHALLOY is a good fit for applications where service and maintenance tasks are cumbersome or difficult to perform. – graphalloy.com