Wear Rings and Bushings

GRAPHALLOY® wear rings and bushings provide performance superior to standard metal stationary and rotating wear parts in pumps for CO2 service in oil-field applications. Self-lubricating GRAPHALLOY, a graphite-metal alloy, eliminates concern about bearing failures or possible flashing of CO2. 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 helps reduce downtime and maintenance expenses.