Parts for Pump Survival & Reliability

Case Rings and Wear Rings

Pump wear rings and case rings made from GRAPHALLOY® materials can significantly improve the reliability and efficiency of both horizontal and vertical pumps. The unique properties of the Graphalloy material, a range of self-lubricating graphite-metal alloys, benefit users across a wide variety of pump services.

Read more here.


GRAPHALLOY 'Disaster' Bushings for Improved Safety in Case of Seal Failure
“Disaster Bushings” are used in pumps outside the seal to minimize product leakage to the environment in the event of a seal failure. GRAPHALLOY® materials provide ideal properties for a disaster bushing. 

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Graphalloy for 3D Printers

3D printers need uncontaminated environments to create their products.  When lubricating bearings, traditional lubricants can often migrate from their desired location and disturb the printing process.  The answer to this problem can be found in self-lubricating bearings.

Check out a Design World "Bearing Tips" article featuring Graphalloy's success in a 3D printer application here.

Graphalloy for Drinking Water Applications, Food Applications

Potable Water NSF International has certified grades of GRAPHALLOY material for use in municipal well pumps and treatment plant applications. These Graphalloy grades are certified to NSF/ANSI Standard 61-"Drinking Water System Components- Health Effects" and approved in the category for Multiple Water Contact Materials up to 180°F. The Water Regulations Advisory Scheme (WRAS, UK) has approved a grade of GRAPHALLOY material as suitable for contact with wholesome water for domestic purposes having met the requirements of BS 6920-1:2000 and/or 2014 'Suitability of non-metallic products for use in contact with water intended for human consumption with regard to their effect on the quality of the water'. Where to use NSF and WRAS Certified Grapahalloy Bushings Municipal Well Pumps Pumps- Potable Water Water Treatment Plants Click here to learn more about Graphalloy for drinking water applications Food Applications In 1996, the U.S. Food and Drug Administration gave GRAPHALLOY a favorable opinion for use in pumps, baking ovens, and equipment for transporting and handling food. That opinion was updated and refreshed in 2018. Click here to learn more about Graphalloy for food applications

Common Reasons Why Oil/Grease Lubricated and Plastic Bearings Fail

Bearings are essential machinery components. Bearings protect the moving shaft from wear and damage, keeping it in place with little friction. They need to be lubricated in order to do so. Oil/grease lubricated bearings and self-lubricating plastic bearings are common but often times not capable of handling extreme situations. Below are the main reasons either option might fail.



Reason #1: High Temperatures

Reason #2: Low Temperatures

Reason #3: Vibration

Reason #4: Corrosives and Washout

Reason #5: Dust, Ash, and other particulates

Reason #6: Dry Run and Low Viscosity Pumpage 

Reason #7: Heavy Loads

Reason #8: Infrequent Operation/Inactivity


Click here to learn more about each reason

Vertical or Side-Entry, GRAPHALLOY Mixes It Up!

Industrial mixer manufacturers have been using self-lubricating GRAPHALLOY bushings for decades, especially in high-temperature environments.

That’s why when it came to choosing a bearing for a newly designed side-entry tank mixer, a major manufacturer decided to put GRAPHALLOY bushings to the test. Since this mixer was for a brewery application (part of the beer making process), the bushings needed to be oil-free, capable of being submerged and FDA acceptable.

Side-entering mixers work efficiently when a tank is too large for convenient installation of a top-entering mixer or when headroom is severely limited.

The company had been using GRAPHALLOY bushings in their various industrial mixers for many years and were pleased with the long life and low maintenance. Prior to using GRAPHALLOY, they had used a glass-filled Teflon material but their customers complained about the short life of these bushings.

Their new mixer is a high-efficiency, robust side-entry mixer designed for applications from 10,000 to 1,000,000 gallons, speed is 154 RPM, and temperature is 200°F.

Working with Graphite Metallizing engineers, they purchased thirteen pieces of GRAPHALLOY FDA acceptable bushings and installed them in the mixers in their brewery customer’s tanks.

Click here to read more.

GRAPHALLOY® at Turbomachinery & Pump Symposia 2018

Graphite Metallizing Corporation will be exhibiting at the 2018 Turbomachinery & Pump Symposia. This conference is being held at the George R. Brown Convention Center in Houston, TX from September 18-20.

Please visit us in Booth 1216.

To learn more about this conference, click here.

GRAPHALLOY® Upgrade Eliminates Failures in Waste Water Sump Pumps

A major refinery was experiencing frequent bearing failures in their vertical oily wastewater sump pumps. The bronze packing box and line shaft bearings were wearing out within two months of service, damaging the shaft and causing leakage through the packing at the stuffing box. Upgrading to GRAPHALLOY bushings solved the problem.

The bearing failure was also causing an environmental issue when the hydrocarbon/water slime leaked into the ground.

Click here to read more...