GRAPHALLOY Bushings and Bearings

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Tuesday, May 29, 2012

High Temperature Damper Solutions

High temperature dampers can be a maintenance problem. These dampers experience temperatures that require frequent greasing and are often in places that are hard to re-grease. In addition, long periods of inactivity is another source of problems as grease hardens or vibration causes metal on metal galling.

Typical GRAPHALLOY Damper Applications:

  • Louver Dampers
  • Wind Boxes
  • Butterfly Dampers
  • Guillotine Dampers
  • Diverter Dampers
  • Radial Vane Dampers
GRAPHALLOY® is available in a variety of mounting styles from two and four bolt pillow blocks to two and four bolt flange units. These units are available as solid or split and also come with self aligning features.

GRAPHALLOY provides these "install and forget" features:

  • Temperature range from -400° F to +1000° F
  • Self Lubricating, requires no oil or grease
  • Will not seize or lock up
  • Self Aligning capabilities for proper alignment
  • Long life, maintenance free operation
  • Dimensionally interchangeable with most standard ball bearing units

Tuesday, May 15, 2012

Bushings that Outperform Metal Wear Parts in CO2 Service

Graphite Metallizing Corporation announces GRAPHALLOY® wear rings and bushings that provide performance superior to standard metal stationary and rotating wear part 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.

CO2 injection in older, low flowing wells is becoming an increasingly popular method for permeating rock formations and forcing more oil to the surface. Many older wells still contain vast amounts of oil locked in the pores of rock layers deep underground. CO2 injection often releases more oil in older wells than can be released by water injection. 

“Use of self-lubricating, non-galling GRAPHALLOY materials in pumps for CO2 service provides substantial cost savings by avoiding expensive downtime and field repairs caused by wear part failures,” said Eben Walker, General Manager of Graphite Metallizing Corporation. “GRAPHALLOY is currently the material of choice for many oil field applications in North America and around the world.”

GRAPHALLOY wear rings and bushings operate at longer intervals without the need for replacements or maintenance which helps reduce downtime and maintenance expenses. GRAPHALLOY is an excellent choice for any application where service and maintenance tasks are cumbersome or difficult to perform. GRAPHALLOY is a proven solution for even the most challenging plant maintenance and new equipment design applications.