CG Spiral Wound Gasket
CG Spiral Wound Gasket is a high-performance semi-metallic sealing solution engineered for critical flange connections operating under elevated pressure and temperature conditions. Designed for industrial buyers, procurement engineers, EPC contractors, maintenance teams, and project managers, these gaskets provide dependable sealing across a wide range of industrial process systems. Featuring an Outer Ring Spiral Wound Gasket design, the centering ring ensures accurate gasket positioning, improves installation, and helps prevent over-compression during flange assembly. Manufactured to internationally recognized standards using precision winding technology and premium materials, CG Spiral Wound Gaskets deliver consistent sealing performance, long service life, and reliable operation in demanding process industries worldwide.
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The CG Spiral Wound Gasket is a semi-metallic gasket constructed by winding a preformed metal strip together with a soft filler material into a resilient sealing element. An outer centering ring is attached to the winding to simplify installation, accurately locate the gasket within the flange assembly, and provide additional radial strength.
The flexible winding structure allows the gasket to recover from thermal expansion, pressure fluctuations, and vibration while maintaining effective sealing performance. The outer ring also functions as a compression limiter, helping achieve proper gasket seating during bolt tightening.
CG Spiral Wound Gaskets are commonly manufactured in accordance with ASME B16.20, applicable ASME B16.5, ASTM material specifications, and produced under ISO 9001 certified quality management systems to ensure dimensional accuracy and reliable sealing performance.
- Semi-metallic gasket with precision spiral winding
- Outer centering ring for accurate flange alignment
- Excellent sealing under high pressure and high temperature
- High recovery and resilience during pressure cycling
- Resistant to thermal expansion and contraction
- Suitable for raised face flange connections
- Helps prevent gasket over-compression during installation
- Available with various filler and metal winding materials
- Manufactured to ASME standards
- Suitable for critical industrial sealing applications
Material Options
Material selection should be based on operating temperature, pressure, process media, corrosion resistance, and flange compatibility.
Stainless Steel 304
Suitable for general industrial process applications requiring good corrosion resistance.
Graphite Filler
Offers excellent sealing performance under high temperatures and is suitable for steam, hydrocarbons, and refinery services.
Stainless Steel 316 & 316L
Provides enhanced corrosion resistance for chemical processing, offshore installations, and petrochemical plants.
PTFE Filler
Recommended for aggressive chemicals, acids, and applications requiring excellent chemical resistance.
Carbon Steel Outer Ring
Frequently used for standard industrial flange assemblies where environmental corrosion is minimal.
Mica Filler
Ideal for elevated temperature applications where oxidation resistance is required.
Additional winding metals and filler combinations are available to meet project-specific operating conditions.
Applications
Oil and Gas Processing
Provides reliable flange sealing for pipelines, separators, compressors, and process equipment operating under demanding conditions.
Chemical Processing Facilities
Offers reliable sealing for aggressive process chemicals when paired with appropriate filler and winding materials.
Petrochemical Plants
Suitable for high-pressure process lines carrying hydrocarbons, steam, and chemical media.
Marine and Offshore Installations
Performs effectively in offshore production facilities requiring durable flange sealing under fluctuating operating conditions.
Refineries
Used in reactors, heat exchangers, pumps, valves, and pressure vessels where dependable sealing is essential.
Industrial Process Plants
Used across manufacturing facilities requiring high-performance Flange Sealing Gasket solutions for critical piping systems.
Power Generation
Installed in boilers, steam pipelines, turbines, and auxiliary process systems exposed to elevated temperatures.
Frequently asked questions
A CG Spiral Wound Gasket is a semi-metallic gasket consisting of spiral-wound metal and filler material with an outer centering ring for accurate installation and improved sealing.
The outer ring centers the gasket within the flange, improves installation accuracy, provides additional structural support, and helps prevent over-compression.
CG Spiral Wound Gaskets are primarily designed for raised face flanges manufactured according to ASME B16.5 and related standards.
These gaskets are typically manufactured according to ASME B16.20, ASME B16.5, applicable API requirements, ASTM material specifications, and ISO 9001 quality management systems.
Yes. When manufactured with appropriate winding materials and graphite or mica fillers, they perform reliably in high-temperature industrial applications.
Yes. Custom dimensions, winding materials, filler combinations, and outer ring materials can be manufactured according to project specifications.
