gasket
-
June 27, 2023
Garlock has expanded their Ultra Low Emissions family of products to include a spiral wound gasket. The FLEXSEAL® ULE is designed for use where leakage control is critical and the aggressive application requires a spiral wound design. It’s manufactured using high performance graphite, and offers maximum protection against oxidation. The standard design includes an inner ring and outer ring, as well as preformed metal wire to enhance compressibility and sealability. The FLEXSEAL® ULE spiral wound
-
May 18, 2023
The Best Gasket Types for Increased Heat
Under pressure? Absolutely. The increasingly high temperatures and harsh conditions to which gaskets are exposed makes selecting the right gasket all the more important.
In industries such as chemical processing, hydrocarbon refining, and power generation, leakage from extreme temperature process streams can result in loss of efficiency and production as well as adverse environmental impacts and compromised employee safety. One of the most commonly used sealing products in systems subject to high pressures and temperatures is a spiral-wound gasket. These gaskets typically consist of filler and winding materials selected on the basis of application requirements and end-user preference. Proper selection of these materials is critical to achieving the desired performance in all applications.
Material Selection for High Temperature Gasketing
Sealing at temperatures above 850 ºF (454 ºC) is particularly challenging because of the limited number of filler materials that can resist thermal degradation at extreme temperatures – these temperatures affect both the sealing material and metal components. For instance, the yield strength of fasteners decreases as the temperature is increased. In addition certain chemicals can become more volatile and aggressive in high-temperature reaction processes.
The two most common filler materials in spiral-wound gaskets are graphite (can withstand temperatures up to 850 ºF) and polytetrafluoroethylene (PTFE; tolerance up to 500 ºF). Other filler materials are used mainly for their thermal insulating properties, not for sealability; these include mica, exfoliated mica, and ceramics. While graphite and PTFE perform satisfactorily in terms of temperature and chemical resistance, they have limitations. Graphite is not compatible with heavily oxidizing media at any temperature, nor can it withstand continuous operating temperatures above 850 ºF. Beyond 850 ºF, volume loss through oxidation becomes excessive and sealing effectiveness is compromised.
Many high-temperature systems, such as exhaust manifolds and flanged piping connections in exhaust systems, are oxidizing. Other services are oxidizing because of the operating temperature and media involved.
-
May 12, 2023
-
May 05, 2023
KLINGERSIL The Original Green Gasket
KLINGERSIL gasketing materials are hard to beat. A proven track record makes them one of the premier gasketing companies in the United States. Because of this, some competitors have cleverly posed their compressed gasket materials as KLINGERSIL green (C-4401).
However, their offerings aren't equal in terms of quality, performance, or specification. And just because it's green doesn't mean it's KLINGERSIL. To ensure you're getting what you want and
-
April 14, 2023
Lubricating Bolts for Your Gaskets
Our friends and partners at KLINGER Thermoseal recently did a survey with their customer base.
- 90% of their customers NEVER lubricate
- 10% of their customers lubricate sometimes
- 0% of the respondents indicated they ALWAYS lubricate.
Relationship between friction coefficient and gasket surface pressure
So, what's the effect of lubricating your bolts? This blog explores the relationship between
-
March 07, 2023
High-temperature chemical processing applications require new approaches to valve-stem packing.
-
October 11, 2022
Rare and Ultra-Pure Resources Present Unique Challenge to Finding Appropriate Low Temp Gasket
Modern technology often requires rare or ultra-pure materials that can only be handled or obtained within extreme environmental conditions. These same conditions present unique and hazardous difficulties when transporting or utilizing these resources. Resources such as liquid oxygen, nitrogen, or argon; all of which are classified as “industrial gases” are handled well below the normal temperature
-
July 26, 2022
Leakages and ill-assembled flanged connections are a daily concern for both offshore and onshore refining industries. Possible implications include additional reinstatement, production loss, monetary loss, damage to assets, harm to employees and environmental consequences. Operators and engineering houses have been left with limited options for ensuring the integrity and safety of bolted flange connections -- until now.
KLINGER Sentry Reverse Integrity Gaskets are designed so leakage testing
-
July 20, 2022
While the primary function of a gasket is to create and maintain a tight seal, gaskets can do more than that – they can also dampen and reduce sound and vibration. This function can be particularly valuable, and necessary, in applications where noise and vibration reduction are desired.
Applications where it is often necessary to reduce the transmission of sound and vibration include HVAC systems, industrial machinery and equipment, telecommunication
-
May 11, 2022
Steps to Installing a Gasket on a Flange
This blog will go over the 8 simple steps to install a gasket on a flange.
Thanks to our friends at Gore for providing the visual for this blog post.
