CGI Spiral Wound Gasket
CGI Spiral Wound Gasket is a premium semi-metallic sealing solution engineered for high-pressure and high-temperature flange connections requiring exceptional sealing reliability. Designed for industrial buyers, procurement engineers, EPC contractors, maintenance teams, and project managers, this gasket combines a resilient spiral winding with both inner and outer rings to deliver superior sealing performance in demanding process environments. The Spiral Wound Gasket with Inner and Outer Ring configuration enhances gasket stability, prevents inward buckling, and improves sealing efficiency under fluctuating operating conditions. Manufactured with precision machining and high-quality materials, CGI Spiral Wound Gaskets comply with internationally recognized engineering standards, making them suitable for critical applications across oil and gas, petrochemical, power generation, and chemical processing industries.
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The CGI Spiral Wound Gasket is constructed by spirally winding a preformed metal strip together with a soft sealing filler to create a resilient sealing element. Unlike standard spiral wound designs, the CGI configuration incorporates both an inner ring and an outer centering ring.
The outer ring ensures accurate gasket positioning during installation while acting as a compression limiter. The inner ring provides additional structural support, minimizes inward buckling of the winding, reduces turbulence caused by process media, and protects the sealing element from erosion in high-velocity services.
Manufactured in accordance with ASME B16.20 Spiral Wound Gasket requirements, along with applicable ASME B16.5, ASTM material specifications, and ISO 9001 quality management standards, CGI Spiral Wound Gaskets deliver dependable sealing performance across demanding industrial applications.
- Spiral wound sealing element with inner and outer rings
- Enhanced gasket stability under high pressure
- Improved sealing performance during thermal cycling
- Inner ring protects winding from erosion and turbulence
- Outer ring ensures accurate flange alignment
- Suitable for high-temperature and high-pressure services
- Excellent recovery and resilience after compression
- Compatible with raised face flange systems
- Manufactured to ASME B16.20 dimensional requirements
- Available in multiple metal and filler material combinations
Material Options
Material selection should be based on service temperature, pressure, process media, corrosion resistance, and flange material compatibility.
Stainless Steel 304
Suitable for general industrial applications requiring reliable corrosion resistance.
Graphite Filler
Recommended for high-temperature steam, refinery operations, and hydrocarbon processing due to its excellent thermal stability.
Stainless Steel 316 & 316L
Provides enhanced resistance against aggressive chemicals, offshore environments, and petrochemical process media.
PTFE Filler
Ideal for chemical processing applications involving corrosive fluids and aggressive chemicals.
Duplex Stainless Steel
Offers high mechanical strength and superior corrosion resistance for demanding offshore and process applications.
Mica Filler
Suitable for elevated temperature environments requiring oxidation resistance and dependable sealing performance.
Other alloy materials and filler combinations can be supplied to satisfy project-specific engineering requirements.
Applications
Oil and Gas Processing
Provides dependable sealing for process piping, compressors, separators, valves, and pressure vessels operating under severe service conditions.
Chemical Processing Facilities
Offers dependable sealing for corrosive process fluids when matched with suitable winding metals and filler materials.
Petrochemical Plants
Suitable for high-pressure process lines carrying hydrocarbons, steam, and aggressive chemical media.
LNG and Gas Processing Plants
Designed for demanding gas processing systems where flange integrity and leak prevention are essential.
Refineries
Used in reactors, heat exchangers, pipelines, and critical flange connections exposed to elevated temperatures.
Industrial Manufacturing Facilities
Functions as a durable Flange Joint Gasket for critical piping systems across various industrial sectors.
Power Generation
Installed in boilers, turbines, steam systems, and auxiliary piping requiring reliable sealing during thermal cycling.
Frequently asked questions
A CGI Spiral Wound Gasket is a semi-metallic gasket featuring a spiral wound sealing element with both an inner ring and an outer centering ring for enhanced sealing performance.
The inner ring strengthens the gasket, prevents inward buckling, minimizes turbulence, protects the sealing element from erosion, and improves long-term sealing reliability.
The outer ring centers the gasket within the flange, assists installation, and helps prevent excessive gasket compression during bolt tightening.
Common filler options include graphite, PTFE, and mica, selected according to operating temperature, pressure, and process media.
Yes. The dual-ring construction provides improved stability and sealing performance, making them suitable for demanding high-pressure industrial services.
Yes. Custom dimensions, alloy materials, filler combinations, and pressure class configurations can be supplied according to project specifications.
