Spiral Wound Gasket with Centering Device
Ferrobend Spiral Wound Gaskets with Centering Device feature a precision-engineered outer guide ring that accurately centers the gasket within the flange assembly. The centering device simplifies installation, improves alignment, protects the sealing element, and supports consistent gasket compression for dependable sealing performance in industrial applications.
Product Overview
An integrated outer centering ring positions the spiral wound sealing element in compatible raised face flanges and provides a defined outer boundary during assembly.
| Product type | Semi-metallic spiral wound gasket |
|---|---|
| Construction | Spiral wound sealing element with a precision outer centering ring. |
| Standard / design basis | ASME B16.20; other configurations as specified below |
| Nominal size range | ½" to 60" nominal sizes; custom dimensions available |
| Pressure classes | ASME Classes 150, 300, 600, 900, 1500 and 2500 |
| Winding material | Stainless steel and selected alloys; available grades listed below |
| Filler material | Graphite, PTFE and other listed fillers, selected for the service |
| Ring arrangement | Outer centering ring |
Standards, Dimensions & Pressure Classes
| ASME B16.20 | Primary metallic gasket standard applicable to the specified spiral wound gasket design. |
|---|---|
| ASME B16.5 | Relevant flange dimensional requirements for compatible flange configurations. |
| EN / DIN / JIS | International dimensional configurations available according to project requirements. |
Sizes & pressure classes
- Nominal sizes
- ½" to 60" nominal sizes; custom dimensions available
- Pressure classes
- ASME Classes 150, 300, 600, 900, 1500 and 2500
- Flange compatibility
- Compatible Raised Face (RF) flange connections.
Use the selected standard, flange dimensions and ring configuration together. Confirm each size / class combination and custom geometry before ordering.
International references are subject to the specified configuration. Confirm the exact standard and drawing with the enquiry.
Technical Specifications
| Sealing element | Precision-wound stainless steel or alloy strip with selected filler. |
|---|---|
| Centering function | The outer guide ring locates the gasket and defines its outer assembly boundary. |
| Recovery and sealing | Designed for thermal cycling, vibration and pressure fluctuations. |
| Manufacturing control | Controlled winding supports consistent density and dimensional geometry. |
| Chemical compatibility | Select metallic materials suitable for corrosive or aggressive service. |
| Custom supply | Special materials, dimensions, thicknesses and configurations to application requirements. |
| Temperature capability | -200°C to 1000°C (material dependent) |
| Pressure capability | ASME Classes 150, 300, 600, 900, 1500 and 2500; suitability depends on gasket design and operating conditions. |
| Flange compatibility | Compatible Raised Face (RF) flange connections. |
| Manufacturing | Controlled winding and dimensional inspection throughout production. |
Temperature, pressure and chemical suitability must be considered together for the selected winding, filler and flange joint. Confirm the required thickness and service limits with the enquiry.
Quality & Testing
| Visual Inspection | Checks winding quality and centering ring condition. |
|---|---|
| Dimensional Inspection | Verifies OD, ID, thickness, and centering ring dimensions. |
| Material Verification | Confirms specified metallic winding and filler materials. Incoming raw materials are also checked before production. |
| Documentation Review | Ensures inspection records and material documentation are available as required. |
Finished gaskets receive final inspection before dispatch. Material certificates and inspection documentation are available on request.
Downloads & Documents
Browse the existing online guides, or request product-specific documents from our team.
Frequently Asked Questions
Which pressure classes and sizes are available?
ASME Classes 150, 300, 600, 900, 1500 and 2500. The stated nominal size range is ½" to 60"; custom sizes are available. Confirm the size / class combination for the selected standard.
Which materials can be supplied?
Choose from the component-specific winding, filler and ring options listed above. Final material selection depends on the process media and service conditions.
Which standards are supported?
ASME B16.20 is listed as the primary gasket standard. Other dimensional or flange configurations remain subject to the project-specific requirements shown above.
Can custom sizes and configurations be supplied?
Yes. Custom dimensions and material combinations are available to project requirements. Confirm the flange geometry and service conditions with the enquiry.
How should the gasket be installed and stored?
Follow the product-specific positioning and tightening steps above. Keep unused gaskets in their original packaging in a clean, dry location away from moisture, chemicals and direct sunlight. Protect them from bending and heavy loads.
What is the function of the centering device?
The outer guide ring positions the gasket in a compatible raised face flange and provides an outer assembly boundary.
Get a quote for your gasket configuration
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