Generic selectors
Exact matches only
Search in title
Search in content

Why Antimony Impregnated, Carbon-Graphite Material is Best for Sealing Refrigerants and Other Low Viscosity Liquids

HVAC
Metcar Carbon-Graphite Material is Best for Sealing Refrigerants

Why Antimony Impregnated, Carbon-Graphite Material is Best for Sealing Refrigerants and Other Low Viscosity Liquids

By: Metcar

Designing mechanical seals for sealing refrigerants and other low viscosity liquids has been a difficult problem for seal manufacturers for many years. However, mechanical seals with antimony impregnated, carbon-graphite primary rings and solid silicon carbide counter face rings could solve this problem. Low viscosity liquids such as Freon refrigerants, liquid oxygen, liquid carbon dioxide, propane, ethylene, and acetone are now being successfully sealed using mechanical seals with Metcar Grade M-444, antimony impregnated, carbon-graphite primary seal rings.

Low viscosity liquids are difficult for mechanical seals because the hydrodynamic film that they create between the two rubbing seal faces is extremely thin. In order for this extremely thin hydrodynamic film to lubricate the two sealing faces, the seal faces must stay highly polished and they must run in very close proximity to each other. The M-444 antimony impregnated, carbon-graphite material and the solid silicon carbide and antimony impregnated carbon- graphite can enables these two materials to run in the required close proximity. Ordinary mechanical seals with resin-impregnated, carbon-graphite primary rings do not have the self-polishing characteristic or the dimensional stability that is required for sealing these low viscosity liquids.

Information on mechanical seal primary ring materials for other difficult sealing applications are available from Metcar’s Application Engineering Department.

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 Metcar online at www.metcar.com

Related Articles

Armstrong 360 Service and Support

360 Service and Support

Armstrong Fluid Technology is proud to announce a new 360 Service and Support program that is now available to their…

Related Whitepapers

Accurate, Reliable, Efficient Pumps that Handle Particulates for Water & Wastewater Treatment and Reverse Osmosis

Compact, Seal-less Pumps Reduce Costs and Provide Dependable Performance The unique seal-less, multiple-diaphragm design of Hydra-Cell offers distinct benefits throughout many applications in the water…

Trends In Hygienic Design Principles

Without agriculture, no food: without food, no life. The history of the food supply has taken a big leap from its origin, from self-sufficient agricultural,…

Pump Solutions for Environmental and Municipal Technology

You Can Rely On Them: Börger Rotary Lobe Pumps Market leader for elastomer-coated rotary lobe pumps and experts in macerating technology. Börger is represented in…

Hose Pumps vs Progressive Cavity Pumps

Progressing cavity pumps are the traditional choice to dose lime and transfer sludges in water treatment and industrial process plants. With a relatively low initial…

Comments

Leave a Reply

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

Sign up for our Newsletter!

Select list(s) to subscribe to


By submitting this form, you are consenting to receive marketing emails from: raybet & raybet 雷竞技 , 2205-C 7th Street, Tuscaloosa, AL, 35401, //www.stokoptom.com. 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