Generic selectors
Exact matches only
Search in title
Search in content

GRAPHALLOY® ‘Disaster’ Bushings for Improved Safety in Case of Seal Failure

Graphalloy ‘Disaster’ Bushings for Improved Safety in Case of Seal Failure

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. There are several properties of GRAPHALLOY material that make it an excellent candidate for these applications:

Tighter Clearances: Graphalloy can be used with very tight clearances, allowing any leaked fluid from the seal to be directed through the appropriate drain.

Non-Galling: Graphalloy is solid, uniform material. It is non-galling and self-lubricating. It is not a surface coating and therefore will not chip off. As Graphalloy is the “sacrificial part”, if the shaft comes in contact, it will not be damaged.

Low Coefficient Of Thermal Expansion: Thermoplastics or metal wear parts used for “disaster bushings” need to be designed to handle a rapid rise in temperature from hot service fluid coming in contact or from touch-off against the shaft. This means designing with wider clearances, partially defeating their purpose. Graphalloy’s low coefficient of thermal expansion relative to metal or thermoplastic means it won’t expand under the high temperatures and can be designed with extremely tight clearances, resulting in more effective leak protection.

GRAPHALLOY works in temperatures ranging from -450°F to over 1000°F (-267°C to over 540°C). It is corrosion resistant and performs in conditions where metal or polymer wear parts fail. Our US-based manufacturing facility can install the Graphalloy for you in your own metal rings or can provide a turnkey ring assembly ourselves.

Learn more about GRAPHALLOY® Parts for Pump Reliability & Safety!

Related Articles

Metcar Custom Radial Seal Rings

Metcar Custom Radial Seal Rings

Seals liquids and gases on industrial blowers, pumps, and turbomachinery Metallized Carbon Corporation, a global leader in the manufacture of oil-free,…

Related Whitepapers

Overcoming Clean-In-Place Challenges in Hygienic Applications with Mouvex® H-FLO Series Pumps

Clean-In-Place (CIP) Challenges There are numerous challenges that must be overcome when cleaning a hygienic pump installation. This is especially true when using a clean-in-place…

Power Transmission Solutions for Hydraulic Fracturing Applications

Altra Industrial Motion provides advanced power transmission solutions for hydraulic fracturing applications. The well-recognized brands of Altra Industrial Motion supply technically advanced universal joints, couplings,…

Evolution of Pumping Technology and Superior Performance

This document begins with a history of the development of variable speed technology, explaining the efficiency improvements associated with each development step. Also presented is…

Engine & Turbine Manufacturer Achives Annual Savings of $245,000 [Case Study]

Find out how Grundfos iSOLUTIONS delivered significant energy savings and system optimizations for a leading engine and turbine manufacturer. A leading UK engine and turbine…


Leave a Reply

Your email address will not be published. Required fields are marked *

Join the #PumpTalk Community

By submitting this form, you are consenting to receive marketing emails from: raybet & raybet 雷竞技 , 2205-C 7th Street, Tuscaloosa, AL, 35401, // You can revoke your consent to receive emails at any time by using the SafeUnsubscribe® link, found at the bottom of every email. Emails are serviced by Constant Contact