SWG - a world-class flange gasket
The original spiral wound gasket has proven its reputation as a world-class flange seal for more than 100 years when it comes to industrial applications with high pressure, harsh media or low emission requirements.
- Gaskets
Are you familiar with SWG?
What is a spiral wound gasket? How does it excel? Understand the SWG package and find the right type for your application and download the informative product brochures.
Here you get a concise, basic introduction to Spiral Wound Gaskets (SWG) from Flexitallic® - One of the most groundbreaking gasket types of all time for efficient and durable flange connections: useful knowledge whether you work as a buyer or technician.
World-class technology for industrial gaskets
What is a Spiral Wound Gasket?
An SWG consists of thin, vertical, spirally wound metal strips combined with a non-metallic filler material. This construction gives your gasket:
- Excellent recovery from pressure and temperature changes
- High chemical resistance to virtually all known media
- The ability to compensate for unevenness in the flange face so the seal remains effective
Two unique filling materials
Corriculite® is designed for offshore and maritime applications and can reduce corrosion on flanges and thus reduce the need for flange renovations (Download brochure at the end of the newsletter).
Thermiculite® excels at withstanding extremely high temperatures and even the harshest chemicals.
Both materials are specially developed by Flexitallic® and allows you to create the most efficient and durable industrial seals.
You get many benefits with SWG
Economic / practical benefits
- Long lifetime and fewer replacements - lower total cost of ownership
- Local availability with advice and short delivery time
- Standardized color coding for quick and reliable identification of materials (ASME B16.20)
- Compatible with with common international flange standards (ASME, BS, DIN, JIS, etc.)
Functional / technical benefits
- Flexible configuration: CG, CGI, R and RIR - customized pressure, temperature and flange type
- Wide choice of materials - matches many operational situations:
- Metal: fx 316LSS, Monel, Hastelloy C276
- FillerFlexicarb® (graphite), PTFE, Thermiculite® (up to 1,000°C)
- Custom-designed solutions for valves, pumps, compressors, turbines, heat exchangers, etc.
- Low emission - meets CFET requirements in the oil and gas industry
Here you can use the SWG gasket with advantage
Petrochemical industry
SWG withstands high temperatures and aggressive media.
Energy & power plants
SWG ensures operation under changing loads.
Offshore, oil & gas
The lifetime of the flange joint is significantly extended with Corriculite as a filler.
Shipyard and marine industry
With corrosion-resistant metals such as Monel and Titanium.
Which style is right for you?
CG Style
With outer ring for centering and over-compression protection / For use in mild to moderate conditions.
CGI style
With outer + inner ring for extra protection against heat, erosion and internal bending / Used in moderate to demanding conditions.
Inner ring is required by API standard.
Style R
Without ring, adapted to special flange profiles (grooves) such as tongue and groove.
RIR style
With inner ring for better flow control and reduced flange erosion.
Learn more about the unique flange seal
Brochure: Spiral wound gaskets (SWG)
SWG is designed for safe and efficient operation in industry. Get information on material selection, configuration and dimensioning.
Brochure: Corriculite - proactive protection against rust
Filler material in seals in saltwater environments, hydrocarbons, etc. Slows down the degradation of pipe flanges and effectively reduces the risk of leakage.
Contact us
As the Danish Flexitallic partner, Betech offers advice on e.g:
- correct gasket type
- Dimensioning according to relevant standards
- material and design for specific operating conditions
