Ferrobend Spiral Wound Gaskets with Outer Ring are manufactured for high-pressure and high-temperature sealing applications. The outer guide ring ensures accurate centering, prevents over-compression, and improves installation reliability in raised face flanges.
ASME B16.20
150–2500
Material Dependent
Raised Face
½"–60"
Standard & Custom
The Outer Ring Spiral Wound Gasket stands as one of the most trusted metallic semi-metallic sealing solutions for industrial flange joints. It combines a precision-formed metal winding with a soft filler material, reinforced by a solid outer centering ring that ensures dependable performance across demanding service conditions.
The outer ring plays a critical structural and functional role — it accurately positions the gasket within raised face flanges, acts as a compression stop to prevent over-compression, and safeguards the sealing element from damage during handling, transport, and installation. This robust construction enhances sealing reliability, even under fluctuating pressure and temperature cycles common in industrial operations.
Ferrobend manufactures Outer Ring Spiral Wound Gaskets using premium-grade stainless steels, nickel alloys, and high-performance filler materials, engineered to meet the rigorous demands of oil & gas, petrochemical, power generation, marine, and chemical processing industries. Each gasket is precision-fabricated to deliver consistent sealing performance, long service life, and superior resistance to extreme operating environments — making it a preferred choice for critical flange connections worldwide.
Precision engineered spiral wound gasket construction for reliable sealing performance in demanding industrial flange applications.
The sealing element consists of precisely formed V-shaped metal strips spirally wound with soft filler material. The controlled winding tension provides excellent recovery and sealing capability.
A solid metallic outer ring provides accurate gasket positioning inside raised face flanges. It prevents gasket movement, improves alignment, and acts as a compression limiter.
The outer ring prevents excessive compression during bolt tightening, protecting the sealing element and maintaining long-term joint integrity.
Combination of metallic winding materials and suitable fillers allows operation across wide temperature ranges depending on material selection.
| Property | Description |
|---|---|
| Product Type | Spiral Wound Gasket with Outer Ring |
| Sealing Type | Semi-metallic compressed gasket |
| Pressure Range | Class 150 to Class 2500 |
| Temperature Range | Dependent on winding and filler materials |
| Flange Compatibility | Raised Face (RF) Flanges |
| Recovery Capability | Excellent recovery under thermal cycling |
| Leakage Performance | Suitable for critical industrial sealing applications |
Accurate flange centering through metallic outer ring
Prevents over-compression during installation
Excellent sealing reliability under pressure fluctuations
Suitable for high temperature and corrosive environments
Available in standard and customized dimensions
Manufactured according to international gasket standards
Metallic and semi-metallic gasket standard for pipe flanges.
Flange dimensional compatibility requirements.
European flange gasket dimensional standards.
Industrial gasket requirements for DIN flange systems.
Ferrobend Spiral Wound Gaskets with Outer Ring are manufactured according to international flange standards with availability in standard and customized sizes.
Available from small diameter pipe connections to large industrial flange applications.
Designed for a wide range of pressure applications.
Suitable for standard raised face flange connections.
| Nominal Size | Pressure Class | Gasket Type | Flange Facing |
|---|---|---|---|
| ½" – 12" | 150 / 300 / 600 | Outer Ring Spiral Wound | Raised Face |
| 14" – 24" | 150 / 300 / 600 / 900 | Outer Ring Spiral Wound | Raised Face |
| 26" – 60" | 150 / 300 / 600 / 1500 / 2500 | Heavy Duty Outer Ring Type | RF / Custom |
Controlled spiral winding with alternating metal strip and soft filler layers.
Multiple winding layers provide elasticity and recovery during operation.
Provides centering, compression control and mechanical protection.
Precision manufactured by Ferrobend with inspection at every production stage.
Suitable for elevated temperature applications when compatible filler and winding materials are selected.
Designed to maintain sealing performance under high pressure and fluctuating operating conditions.
Material combinations can be selected for aggressive chemical environments.
Excellent recovery characteristics during repeated heating and cooling cycles.
Pipeline, refinery and processing equipment flange sealing.
Reliable sealing for corrosive chemical services.
Steam, turbine and high temperature equipment applications.
Critical process equipment requiring dependable flange sealing.
Used in marine piping and industrial vessel systems.
Custom sealing solutions for specialized machinery.
Correct installation is essential to achieve maximum sealing performance and long service life of Spiral Wound Gaskets.
Check flange surfaces for damage, corrosion, dirt, or irregularities before installing the gasket. Flange faces should be clean and properly aligned.
Place the gasket carefully between flange faces. The outer ring should sit properly against the flange inside diameter for accurate centering.
Apply recommended bolt torque using a proper tightening sequence to achieve uniform gasket compression.
Verify flange alignment, bolt tightening condition, and gasket positioning before commissioning the equipment.
Store gaskets in original packaging until installation to prevent damage or contamination.
Store in a clean, dry area away from excessive moisture, chemicals, and direct sunlight.
Do not bend, twist, or deform the gasket during handling and transportation.
All incoming raw materials are verified according to specified requirements before production.
Critical dimensions are checked to ensure compliance with applicable gasket standards.
Inspection reports, material certificates, and quality documents are available for customer requirements.
Each gasket is inspected before dispatch to ensure manufacturing consistency.
| Inspection | Purpose |
|---|---|
| Visual Inspection | Checking winding quality, ring condition, and surface finish |
| Dimensional Check | Verification of gasket dimensions and tolerances |
| Material Verification | Confirmation of specified metal and filler materials |
| Quality Documentation | Supply of certificates and inspection records |
It is a semi-metallic gasket consisting of spiral metal winding, filler material, and an external guide ring used for accurate positioning and compression control.
The outer ring prevents gasket movement, improves alignment, protects the sealing element, and controls compression during installation.
These gaskets are commonly used with Raised Face (RF) flange systems according to ASME flange standards.
Yes. Custom dimensions, materials, and special designs can be manufactured according to customer requirements.
They are widely used in oil & gas, petrochemical, chemical, power generation, marine, and heavy engineering industries.
Access technical documents and engineering resources related to Ferrobend Spiral Wound Gaskets.
Detailed product information including specifications, materials, and applications.
Download PDFMaterial traceability documents available as per customer requirements.
Request DocumentDimensional drawings available for standard and customized designs.
Request DrawingContact Ferrobend for engineering support, customized dimensions, special materials, and industrial sealing solutions.