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Archives :: Processing & Handling :: Liquid, Gas and Air Handling :: Seals, gaskets & packing materials

Displaying 41 - 48 of 48 stories.
December 15, 2007
Seals are assemblies of elements that prevent the passage of a solid, liquid, gas or vapor from one system to another. When a seal allows leakage of material, failure has occurred. This guide provides an overview of common seal types and a discussion of seal failure to aid in choosing the most effective seal and avoiding future failure. Seal Types Seals types can be classified within two broad categories...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/seals_gaskets_and_packing_materials/Avoiding-Seal-Failure_3552.html
November 15, 2007
Make a leak-free seal, even for irregular flanges The proprietary Multi-Swell gasket material (photo) is said to be the world’s first self-loading, general-service gasket. The material creates its own load when it comes into contact with oil or water, which virtually eliminates the most common cause of gasket failure — insufficient load. The material performs equally well in water or oil, does...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/seals_gaskets_and_packing_materials/Focus-On-Pipes-and-Fittings_3522.html
June 1, 2007
    Although sealing technologies rarely make the headline, when they do, its usually for a tragic reason, which demonstrates how important this small component really is. For example, on January 28, 1986, the Space Shuttle Challenger disintegrated 73 seconds into its flight, after an O-ring seal in its right solid rocket booster (SRB) failed. The seal failure caused a flame leak from the SRB...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/seals_gaskets_and_packing_materials/Small-but-mighty_3327.html
March 1, 2007
  Pipe flanges are used to mechanically connect pipe sections to other pipe sections, inline components, and equipment. Flanges also allow pipe to be assembled and disassembled without cutting or welding, which eliminates the need for those two operations when dismantling is required. In providing a breakable joint, however, flanges unfortunately provide a potential leak path for the process fluid...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/seals_gaskets_and_packing_materials/Piping-Design-Part-2-Flanges_3131.html
February 1, 2007
    This is the first in a series of articles that will cover a wide range of piping topics. The topics will cross process-industry lines, pertaining to, for example, the chemical, petroleum-refining, pulp-and-paper and pharmaceutical and other industries.The main intent of these articles to address questions and misunderstandings as they relate to use of piping on a general basis.   Typical...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/seals_gaskets_and_packing_materials/Piping-for-Process-Plants-Part-1-The-Basics_3141.html
February 1, 2007
    The 23rd International Pump Users Symposium returns to the George R. Brown Convention Center (Houston, Tex.) this year on March 5–8. Known as the meeting organized by pump users for pump users, this show is guided by an advisory committee that is made up of recognized leaders in the pump community. In addition to a wide variety of exhibits, the program provides an opportunity for...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/seals_gaskets_and_packing_materials/23rd-International-Pump-Users-Symposium-preview_3161.html
April 1, 2006
In today’s global marketplace, multinational companies are almost expected to manufacture products at different sites around the world. Try as they might to build plants that are identical and employ the same procedures, there are no guarantees the results will be the same. Regional differences in the water supply, or seasonal changes in temperature and humidity, can affect process parameters...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/seals_gaskets_and_packing_materials/Seals-and-gaskets-at-your-service_3072.html
January 1, 2006
    Leakage costs industry millions of dollars every year. For example, a few small leaks in a facility using air at 100 psig, with an electric consumption cost of about 6¢/kWh, can waste more than $22,000 annually. Delaying the replacement of a leaking $100 steam trap could waste $50 per week; since an average facility typically has hundreds of steam traps throughout its operations, leaking...
http://www.che.com/processing_and_handling/liquid_gas_and_air_handling/seals_gaskets_and_packing_materials/Avoid-Leakage-in-Pipe-Systems_2812.html
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