Spiral Wound Gasket

Spiral-gasket

Spiral Wound Gaskets: Your Ultimate Sealing Solution for Demanding Applications

When dealing with high pressures, extreme temperatures, and critical fluids, it is imperative to choose the best seal. Spiral wound gaskets excel in this regard, and we specialize in this complex, precision-engineered sealing technology. Unlike companies offering spiral wound gaskets among a wide array of products, we specialize in spiral wound gaskets.

Spiral Wound Gasket : What You Need to Know ?

Spiral wound gaskets are a premium, semi-metallic sealing solution. They consist of:

Metallic Winding Strip: Forms the core; common materials include various grades of stainless steel for strength and corrosion resistance.

Soft Filler Material: Graphite, PTFE, or others are used for compressibility and to enhance the seal between the gasket and flange faces.

Inner and Outer Rings (Optional): Add stability, center the gasket, and act as compression limiters.

Benefits of Spiral Wound Gaskets

Extreme Resilience: Handle high temperatures, pressures, and fluctuating loads.

Chemical Compatibility: Diverse materials to choose from for compatibility with various fluids.

Fire Safety: Selected configurations can achieve fire-safe ratings.

Reduced Emissions: Help minimize fugitive emissions for regulatory compliance.

Where Spiral Wound Gaskets Shine ?

Pipelines: Oil & gas, chemical processing, water/wastewater transport.

Flanges, Vessels, and Valves: Critical joints in refineries, power plants, and more.

Heat Exchangers: Maintains separation between fluids while handling temperature extremes.

Specialty Applications: Aerospace, nuclear, and other high-performance industries.

Spiral Wound Gasket Standards

At Asian Sealing Products, we understand gaskets’ critical role in ensuring safe and reliable connections. Our spiral wound gaskets are manufactured to meet the highest industry standards.

Built to Last:

Dimensional Accuracy: Our gaskets adhere to strict dimensional tolerances outlined in global standards like ASME B16.20 to suit ASME B16.5, ASME B16.47 Series A & B, API 605, MSS SP44 Flanges, EN 1514-2 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. This ensures a perfect fit within your flange connections, preventing leaks and blowouts.

Material Performance: We use high-quality materials for the metal winding and the filler, ensuring compatibility with various fluids and temperatures.

Pressure Rating: Our gaskets are available in various thicknesses to meet the specific pressure requirements of your application.

The ASME B16.20 standard governs the dimensions of spiral wound gaskets for use with flanges conforming to other ASME B16 standards (like B16.5 and B16.47). This ensures proper fit and performance.

 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.

We’re More than Just a Supplier; We’re Your Sealing Partner

Don’t see your specific situation reflected here? Contact us and be surprised! Our technical experts are always available to discuss your unique application challenges and help you find the perfect spiral wound gasket solution. From one-off replacement needs to large-volume orders, we’re committed to exceeding your expectations.

Experience the Asian Sealing Products’ Difference

Ready to discover a better way to source spiral wound gaskets? Browse our selection of types   and standard sizes or  Contact us today for a personalized consultation and experience the superior quality, expert support, and value we bring to every order.

Let’s seal the deal!

 

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

Downloads

SPW Dimension Chart - ASME B16.20 to ASME B16.5 SPW Dimension Chart - ASME B16.20 to ASME B16.47 (A) SPW Dimension Chart - ASME B16.20 to ASME B16.47 (B) SPW Dimension Chart - EN 1514-2 SPW Dimension Chart - BS10 Flange SPW Dimension Chart - MSS SP44 Flange SPW Dimension Chart - BS 4865-2 to suit BS 4504 Flange SPW Dimension Chart - API 605 SPW Dimension Chart - BS 3381 to suit BS 1560 Flange SPW Dimension Chart - JIS B2404 to suit JIS B2220 & JIS B2240 Flanges SPW Dimension Chart - DIN 2632 & DIN 2638 Flanges SPW Construction Test Load SPW Performance Test Load SPW Brochure

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.

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