Posted in | Materials Analysis

Custom Radial Seal Rings From Metallized Carbon Corporation

Metallized Carbon Corporation, a global leader in the manufacture of oil-free, self-lubricating, carbon-graphite materials for severe service lubrication applications, announces the availability of custom radial seal ring assemblies, also known as packing rings, used to prevent leakage of industrial blowers, pumps and other turbo machinery by sealing the clearance between a rotating or reciprocating shaft and the stationary housing.

The carbon-graphite radial seal rings are manufactured by Metcar and meet the most stringent customer specifications. More than 150 grades of proprietary carbon/graphite material are available, and Metcar engineers work with customers to select the optimum grade for specific applications, based on the environment, shaft, housing materials, or rotational speed.

Metcar’s packing rings are ideal for sealing both liquid and gases for a wide range of applications, including aircraft turbine engines, blenders and mixers, furnace exhaust blowers, and oil free piston compressors, as well as ship propeller shafts, steam turbines, and water pumps and turbines. The carbon-graphite radial seal assemblies help solve serious leakage problems that occur when stuffing box seals fail due to wear, thermal degradation, chemical attack, and dimensional stability problems with leather, plastic, composite or elastomeric elastic seal ring materials.

Two types of radial seal rings are available. The “close clearance” version is a one piece, solid ring made to fit with close clearance on the outer dimension of the rotating or reciprocating shaft. If the shaft is expected to experience thermal expansion, the carbon-graphite ring comes in a version that is shrink-fitted into a metal retaining ring, providing the carbon graphite/metal assembly the same thermal expansion rate as the shaft.

About Metallized Carbon Corporation

Since its inception in 1945, Metallized Carbon Corporation has been manufacturing high-quality, dependable bearing solutions for severe operating environments. With over 50 years of Application Engineering experience, Metallized Carbon offers the field expertise and data necessary to provide The Solid Choice for Lubrication® in a wide variety of industries, supplying completely machined components as well as materials for customer machining. Metallized Carbon is ISO certified and produces the Metcar brand of solid, oil-free, self-lubricating materials.

For additional information about the company and its services, please visit us online at www.metcar.com or call (914) 941-3738

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