High-Performance Spiral Wound Gasket for Extreme Pressure & Temperature Applications
Spiral wound gaskets are one of the most widely used sealing solutions in industrial applications where high pressure, elevated temperatures, and fluctuating conditions are present. Designed with a combination of metal winding and soft filler material, these gaskets deliver exceptional resilience, recovery, and sealing integrity in critical service environments.
At M&P Sealing, we supply spiral wound gaskets to meet ASME standards, refinery specifications, and application-specific requirements. Whether for standard pipe flanges or highly engineered systems, our gaskets are built to perform under pressure—literally.
What Is a Spiral Wound Gasket?
A spiral wound gasket is a semi-metallic sealing solution designed for high-pressure, high-temperature applications where reliability is critical. It is constructed by winding a thin strip of metal—typically formed into a V-shape—together with a soft filler material such as graphite or PTFE. This layered design creates a gasket that combines strength with flexibility, allowing it to compress under load while maintaining the ability to recover as conditions change. Often used with inner and outer rings for added support and alignment, spiral wound gaskets are commonly installed between flanged connections in piping systems, pressure vessels, and heat exchangers to prevent leaks in demanding industrial environments.
Common Metal Materials
- 304 Stainless Steel
- 316 / 316L Stainless Steel
- Carbon Steel
- Monel
- Inconel
- Other alloys available upon request
Filler Materials
- Flexible Graphite (most common for high-temp applications)
- PTFE (ideal for chemical resistance)
- Ceramic (for extreme heat conditions)
Inner & Outer Rings
- Inner Ring (Compression Stop): Prevents over-compression and protects against turbulence and erosion
- Outer Ring (Centering Ring): Ensures proper alignment within flange assemblies
Spiral wound gaskets are engineered to deliver reliable sealing performance in the most demanding environments, offering a unique combination of strength, flexibility, and long-term durability. Their layered construction allows for excellent resilience and recovery, meaning they maintain a tight seal even through constant pressure and temperature fluctuations. This makes them especially effective in applications with thermal cycling or vibration, where maintaining gasket integrity is critical. Depending on the filler material selected, spiral wound gaskets also provide strong chemical resistance, making them suitable for a wide range of aggressive media. With added features like inner and outer rings, they offer enhanced stability, proper alignment, and protection against over-compression or blowout—ensuring consistent performance in high-pressure, high-temperature service conditions.
Common Applications
- Pipe flanges in refineries and chemical plants
- Heat exchangers
- Pressure vessels
- Boilers and steam systems
- Pump and valve assemblies
Industries Served
- Oil & Gas
- Petrochemical
- Chemical Processing
- Power Generation
- Industrial Manufacturing
Key Features & Benefits
- Designed for extreme pressure and temperature cycling
- Excellent resilience and recovery, maintaining seal integrity over time
- Suitable for wide chemical compatibility depending on filler selection
- Resistant to blowout under high-pressure conditions
- Available with inner and outer rings for added stability and safety
Critical Sealing Environments
Spiral wound gaskets are specifically designed to handle the kind of operating conditions that cause traditional gasket materials to fail. Their combination of metal windings and flexible filler allows them to adapt in real time to changes in pressure, temperature, and mechanical load—maintaining a tight, reliable seal even in unstable environments.
Spiral wound gaskets maintain consistent sealing performance even as system conditions change—making them a go-to solution for high-demand industrial environments where durability and reliability are essential.
In operations where leaks can lead to safety hazards, environmental risks, or costly downtime, sealing reliability is non-negotiable. Spiral wound gaskets provide a high level of confidence in these critical applications due to their blowout resistance, structural integrity, and ability to maintain seal under stress. They are commonly used in pressure vessels, flange connections, and systems where failure is simply not an option.