Spiral Wound Gasket

Spiral-gasket

Are you fed up with leaks, downtime, and the constant inconvenience of unreliable gaskets? Spiral wound gaskets are pre-compressed sealing components designed specifically for flange connections. They feature a spiral-wound metal core, typically made from high-grade stainless steel, interleaved with a soft filler material. This unique design provides exceptional resilience and adaptability, ensuring a leak-proof seal even under extreme pressure and temperature fluctuations.

Upgrade your operations with Asian Sealing Products spiral wound gaskets, where precision engineering meets unwavering reliability. These aren’t your average gaskets – they’re meticulously constructed to ensure an unbreakable seal in even the harshest industrial environments. Our spiral wound meets global standards like ASME B16.20 to suit ASME B16.5, ASME B16.47 Series A & B, API 605, MSS SP44 Flanges, EN1514-2 to suit EN1092 Flange, BS 3381 to suit BS 1560 Flange, JIS B2404 to suit JIS B2220, JIS B2240 Flanges, and BS 4865-2 to suit BS 4504 Flange, Gaskets to suit BS 10, DIN flanges, etc. are compatible with various flange specifications.

Spiral Wound Gaskets Specification:

  • Temperature Resistance: Handles temperatures up to +1000°C, ensuring stability in high-temperature applications.
  • Fluid Pressure Endurance: Withstands fluid pressures up to 250 bar, providing reliable sealing in high-pressure environments.
  • Versatile Performance: Exhibits outstanding performance across a broad spectrum of media and temperatures, including steam, chemicals, oils, and hydrocarbons.
  • Robust Design: The sturdy construction allows straightforward installation without damage, offering ease of use even in large-diameter gaskets (caution is advised for transport and installation without guide rings).
  • Non-Adhesive Nature: The gasket facilitates easy removal without leaving residue or causing damage.
  • Rigorous Testing: All graphite gaskets undergo thorough testing, adhering to recognized national and international standards to ensure quality and reliability.

Applications:

Spiral wound gaskets find widespread applications across various industries due to their versatile sealing capabilities and resilience in demanding conditions. The design and production of spiral wound gaskets prioritize flexibility, allowing the seal to rebound effectively in the face of severe temperature and pressure fluctuations.

Here are some common applications:

  • Oil and Gas Industry
  • Chemical Processing
  • Power Generation
  • Petrochemical Industry
  • Water and Wastewater Treatment
  • Marine and Shipbuilding
  • Food and Beverage Processing
  • Aerospace Industry
  • HVAC Systems
  • Mining and Minerals Processing

Spiral Wound Gasket Materials

Spiral wound gaskets are custom-made to withstand various operating conditions, including temperature, pressure, and chemical exposure. Here are some of the most common materials used in spiral wound gaskets:

1)  Metallic winding materials:

  • Stainless steel (304, 316, etc.)
  • Inconel
  • Monel

2) Filler materials:

  • Graphite
  • Flexible graphite
  • PTFE (polytetrafluoroethylene)
  • Non-asbestos compounds
  • Mica

3) Inner and outer ring materials:

  • Carbon steel
  • Stainless steel
  • Inconel
  • Monel

A color coding system on the gasket’s edge simplifies identification, aligning with industry standards. The color coding implemented by Asian Sealing aligns with industry standards for metal and filler materials as outlined in ASME B16.20. 

 Spiral Wound Gasket Types

We manufacture spiral wound gaskets in a variety of styles to align with the specific flange facings utilized on the flanges, including-

  • Type CGI (Gasket with Centering Ring and Inner Ring)
  • Type CG (Gasket with Centering Ring)
  • Type GI (Gasket with Inner Ring)
  • Type G (Gasket only)

Why Choose Us for Your Spiral Wound Gasket Needs?

  • Expertise Beyond the Basics: We don’t just sell gaskets; we understand your applications. Our team uses industry knowledge to guide you toward the optimal spiral wound gasket configuration, ensuring reliable, leak-free performance in even the harshest environments.
  • Customization is Key: Don’t force your process to fit the gasket. We offer various material choices, winding densities, and dimensions to ensure a perfect fit for your flange specifications and operational parameters.
  • Quality that Goes the Distance: Our spiral wound gaskets are manufactured with uncompromising precision, utilizing best-in-class fillers, winding metals, and rigorous in-process quality control. The result? Gaskets that deliver long-term reliability.
  • Industry-Specific Solutions: From petrochemical plants to power generation, we’ve tackled the unique sealing challenges of various sectors. Bring us your application, and we’ll bring you the right spiral wound gasket solution.
  • The Competitive Edge: We understand that value matters. That’s why we strive to deliver the best combination of sealing performance, customization, and competitive pricing.
Standard and Custom Options:

Asian Sealing Products offers a comprehensive range of standard-sized spiral wound gaskets of various thicknesses to cater to most industrial applications. Additionally, we understand that specific requirements may exist. Therefore, we offer custom gasket fabrication options, allowing you to specify size, material combinations, and other parameters to ensure a perfect fit for your application.

Ready to experience the superior sealing performance of Asian Sealing Products’ spiral wound gaskets? 

When placing an order for spiral wound gaskets, it is crucial to provide specific details to ensure the correct product for your application. To ensure optimal performance, provide these details when ordering:

  • Gasket Style: Choose the appropriate style (e.g., CGI, CG) for your application.
  • Size: Specify the nominal pipe size (NPS) for proper fit.
  • Pressure Rating: Indicate the required pressure tolerance for safe operation.
  • Standard: Match the gasket standard (e.g., ANSI, ASME) to your flange system.
  • Materials: Select winding, outer ring, and inner ring materials based on temperature, pressure, and chemical compatibility (common options include stainless steel and high-nickel alloys).

Get the perfect seal with our high-performance spiral wound gaskets. Browse our selection of types and standard sizes.

 Contact us today for a personalized consultation and experience the superior quality, expert support, and value we bring to every order.

 

Product Details
  • Solid metallic inner & outer ring
  • Suitable for high pressure and temperature applications
  • Standard spiral wound gasket for raised face applications
  • Prevents turbulence and erosion damage to flange
  • Prevents damage to the gasket bore and inner windings
  • Inner ring acts as a heat shield and as a corrosion barrier
  • Wide choice of materials for filler and metal strip
  • General and critical duties
  • Solid metallic outer ring used as a centering device and compression stop
  • Used mainly on raised face and flat face flanges
  • Wide choice of materials for filler and metal strip
  • General duties
  • Solid metallic inner ring
  • High pressure & high temperature capability
  • Male to female flanges in vessels, valves and pumps
  • Wide choice of materials for filler and metal strip
  • General and critical duties
  • Wide choice of materials for filler and metallic strip
  • Suitable for high pressure and temperature applications
  • Recommended flanges are tongue & groove, male to female and flat face to recess in vessels, valves and pumps
  • General and critical duties
SPIRAL WOUND GASKETS - Winding Materials : Temperature & Hardness Reference Chart

 

Sl.No Winding Material Marking Code Temperature Range Hardness Range Color Code
1 Carbon Steel CS (- 30°C to + 400 °C) 120 BHN Max Silver
2 SS 304 304 540°C Max 160 BHN Max Yellow
3 SS 304L 304L 540°C Max 160 BHN Max Yellow
4 SS 316 316 800°C Max 160 BHN Max Green
5 SS 316L 316L 800°C Max 160 BHN Max Green
6 SS 309 309 540°C Max 160 BHN Max No Colour
7 SS 310 310 540°C Max 160 BHN Max No Colour
8 SS 317L 317L 800°C Max 160 BHN Max Maroon
9 SS 321 321 850°C Max 160 BHN Max Turquoise
10 SS 347 347 850°C Max 160 BHN Max Blue
11 SS 430 430 440°C Max 190 BHN Max No Colour
12 Monel 400 MON 650°C Max 150 BHN Max Orange
13 Nickel 200 NI 550°C Max 160 BHN Max Red
14 Titanium Grade 2 TI 950°C Max 160 BHN Max Purple
15 Hastelloy Grade B2 HAST B 950°C Max 200 BHN Max Brown
16 Hastelloy Grade C-276 HAST C 950°C Max 200 BHN Max Beige
17 Inconel Grade 600 INC 600 1000°C Max 200 BHN Max Gold
18 Inconel Grade 625 INC 625 1000°C Max 240 BHN Max Gold
19 Inconel Grade X-750 INX 950°C Max 240 BHN Max No Colour
20 Incoloy Grade 800 IN 800 1000°C Max 200 BHN Max White
21 Incoloy Grade 825 IN 825 1000°C Max 190 BHN Max White
Note : The above colour code is identifying the spiral wound gasket for winding material, a continuous colour around the outer edge of centering outer ring.
SPIRAL WOUND GASKETS – Filler Materials : Temperature & Pressure Reference Chart
Sl.No Filler Material Marking Code Temperature Range Working Pressure Color Code
1 Graphite FG (- 200°C to + 450 °C ) 250 bar Max Grey Stripe
2 Polytetra Fluoro Ethylene (PTFE) PTFE ( – 150°C to + 240 °C ) 100 bar Max White Stripe
3 Mica Mica ( – 100°C to + 800 °C) 100 bar Max Light Blue Stripe
Note : The above colour code is identifying the spiral wound gasket for filler material, for below NPS 1-1/2″ shall have two stripes at 180° apart and for NPS 1-1/2″ & above size shall have four stripes at 90° apart.
SPIRAL WOUND GASKETS – TYPES AVAILABLE
Type Product Description Applications
CGI Spiral Wound Metallic Gasket with inner and outer rings, where the rings are made from the materials like carbon steel, stainless steel and other alloy metals. General-purpose sealing in diverse applications.
CG Spiral Wound Metallic Gasket with centering outer ring. This gasket type is well-suited for flange connections in diverse industries.
GI Spiral Wound Metallic Gasket with inner rings, typically as same as winding material. Ideal for applications requiring enhanced internal support and stability.
G Spiral Wound Metallic Gasket without a centering outer ring & inner ring. Suitable for flanges with well-aligned bolt holes, where a centering outer ring & inner ring is unnecessary.
SPIRAL WOUND GASKETS – Nominal Gasket Thickness & Compression Thickness Reference
Sl.No Nominal Thickness Compressed Thickness
1 3.20 mm (0.126 in) 2.40 mm – 2.60 mm (0.095 – 0.105) in
2 4.45 mm (0.175 in) 3.17 mm – 3.43 mm (0.124 – 0.135) in
3 6.35 mm (0.250 in) 4.60 mm – 4.80 mm (0.180 – 0.190) in
Note : This compressed thickness after applying of compression load as per ASME B16.20
Edn 2017, for gasket thickness 4.45 mm the require compression thickness is min 3.43 mm

FAQ's

Our spiral wound gaskets can handle temperatures up to +1000°C, ensuring stability in high-temperature applications. This feature makes them ideal for industries with extreme temperature conditions.

Spiral wound gaskets have established themselves as the most dependable sealing components suitable for challenging, vital, and demanding applications.  Spiral  gaskets offer excellent sealing performance, compatibility with various media, resilience to high temperatures and pressures, and the ability to compensate for flange irregularities, making them a reliable choice for demanding sealing applications. 

Spiral wound gaskets find applications in industries such as Oil and Gas, Chemical Processing, Power Generation, Petrochemical, Water and Wastewater Treatment, Marine and Shipbuilding, Food and Beverage Processing, Aerospace, HVAC Systems, Mining, and Minerals Processing. Their versatile sealing capabilities and resilience make them reliable in demanding conditions.

Our gaskets undergo color coding for easy selection and identification. The color on the outer edge of the centering ring indicates both the winding and filler materials. Solid colors represent metallic winding material, while colored stripes designate filler materials. This system aligns with industry standards outlined in ASME B16.20.

The global gaskets and seals market was estimated to be USD 56.93 billion in 2021 and projected to grow at a CAGR of 4.1% over the forecast period . As per the PitchBook News and analysis ,the specific market size for spiral wound gaskets may require a more detailed analysis from industry reports, which could be obtained by referring to the sources mentioned in the search results.

The thickness of a spiral wound gasket directly influences its sealing performance and suitability for specific applications. Understanding and specifying the appropriate thickness is crucial to ensuring an effective seal in diverse industrial settings.

When placing an order, it’s essential to specify the gasket style (CGI, CG, etc.), nominal pipe size (NPS), pressure rating, applicable gasket standard (ANSI, ASME, etc.), preferred winding materials, outer ring material, and inner ring material. This ensures the selected gasket aligns with the application’s requirements and operating conditions.