Do you know the advantages of spiral wound gaskets?

Spiral wound gaskets, a high-strength sealing solution

We are a company specialized in the distribution of sealing gaskets, always adapting our stock to the new needs of our clients, among which are the newly acquired spiral wound gaskets.

Spiral wound gaskets are designed to withstand high pressures and temperatures, commonly used in industrial applications such as petrochemicals, power generation, and piping systems. Made of metal (304 or 316 steel combined with graphite) and different filler materials, these gaskets form a spiral that provides excellent chemical resistance, durability, and flexibility, adapting to the irregularities of the sealing surfaces and compensating for pressure and temperature changes.

While steel provides structural strength, mechanical resistance, and durability, allowing them to withstand high pressures and adverse operating conditions; graphite offers excellent resistance to high temperatures, good thermal conductivity, and resistance to most chemicals. Its flexibility and compression capability allow for better sealing, adapting to contact surfaces and compensating for misalignments or imperfections. In addition, graphite facilitates the gasket's recovery, allowing it to maintain its integrity under pressure and temperature fluctuations.

At JIOrings, we have spiral wound gaskets with this combination of materials:

• STEEL 304-GRAPHITE + 304: Combines 304 type stainless steel with graphite, providing excellent corrosion resistance and a good sealing capacity at high temperatures, ideal for general applications that do not require the highest corrosion resistance.
• STEEL 316-GRAPHITE + STEEL-CARBON: This variant employs 316 type stainless steel, along with graphite and a carbon steel core, balancing corrosion resistance with strength and durability, suitable for more chemically aggressive environments.
• STEEL 316-GRAPHITE + STEEL-CARBON + 316: Adds an outer layer of 316 type stainless steel to the previous design, reinforcing corrosion resistance in even more severe environments, maintaining effective sealing properties and durability. It is ideal for high-demand chemical and temperature applications.

Stainless steel 304 offers good corrosion resistance and is suitable for general use. While stainless steel 316, on the other hand, by containing molybdenum, provides greater resistance to corrosion, especially against chlorides and marine environments, making it preferable in more demanding applications in terms of chemical corrosion.

Characteristics and applications

Spiral wound gaskets can be used in applications with pressures of up to 250 bar and cryogenic temperatures of up to -200 °C and high temperatures of up to +550 °C / +1100 °C. And, thanks to their design, they do not damage the faces of the housings where they are placed and are easy to install and uninstall. The outer rings are especially useful for positioning the spiral element in the center of the housing faces and preventing it from coming out. Moreover, these gaskets are characterized by:

• High resistance to extreme variations in pressure and temperature.
• Capacity to seal efficiently under adverse conditions.
• Adaptability to imperfections of the contact surfaces.
• Durability and long service life.
• Combination of metal and filler material (often graphite), providing chemical resistance.

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• Spiral wound gaskets SWG3
• Spiral wound gaskets SWG4