Spiral Wound Gaskets

Spiral Wound Gasket

  1. The spiral wound gasket is suitable for use across a wide pressure range and is therefore virtually applicable.
  2. The spiral wound gasket can be used to seal fluid pressures up to 250 bar and cryogenic temperatures as low – 200°C and up to elevated temperatures 550°C.
  3. Due to its sturdy design the spiral wound gasket is simple to install without causing damage (although extra care should be taken during transportation and installation of large diameter gasket without guide rings).
  4. The outer guide ring serves to locate the spiral element centrally on the flange faces and prevent blow-out.
  5. By combining different winding materials and metals the gasket can be tailored to a wide variety of operating conditions.
  6. Due to its non-adhesive character the gasket is easy to remove after service.
  7. The gasket does not cause damage to the flange faces.

Benefits of the Centring Ring

The spiral wound gasket outer centering ring provides the following benefits:

  1. Optimum location between the bolts.
  2. Protection of the spiral wound element.
  3. Additional security against gasket blow-out.
  4. Acts as compression limiter preventing overloading and over compression of the spiral wound element.
  5. Prevents radial-flow of soft fillers, such as P.T.F.E. For these reasons it is preferable to use spiral wound gasket with outer centering rings. On the outer ring is marked with nominal size, pressure class, standard and materials.

Benefits of the Inner Ring

The spiral gasket inner ring provides the following benefits:

  1. Prevents radial-flow of soft fillers, such as P.T.F.E.
  2. Reduces turbulence-minimizing flow resistance and crevice corrosion.
  3. Acts as a heat shield when the spiral wound gasket is subjected to high temperatures. Inner and outer rings are particularly recommended for use on spiral wound gaskets exceeding class 600lbs, but specifically recommended for high temperatures and pressures to optimize the operational reliability of the spiral wound sealing element.

Material Selection

Material selected for the inner ring and winding metal is usually the same as the flange metal, in order to prevent corrosion and differential expansion problems. The outer centering ring is generally manufactured from carbon steel with an anti- corrosion treatment; however, the ring may also be manufactured in the same metal as the flange to prevent corrosion problems.

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Spiral Wound Gaskets Supplier — Gujarat, Tamil Nadu, Kerala, Andhra Pradesh & Telangana

Looking for a reliable Spiral Wound Gaskets supplier for your high-pressure, high-temperature flange sealing requirements? We manufacture and supply precision-engineered spiral wound gaskets to refineries, EPC contractors, valve manufacturers, and process plant maintenance teams across Gujarat — including Ahmedabad, Surat, Vadodara, Rajkot, Kachchh, Amreli, Aravalli, Gandhinagar, Navsari, Godhra, and Palanpur — as well as Tamil Nadu, Kerala, Andhra Pradesh, and Telangana.

Our spiral wound gaskets are manufactured by spirally winding a V-shaped metal strip with alternating layers of soft filler material such as graphite, PTFE, or mica, in accordance with ASME B16.20 standards. This composite construction delivers a leak-tight seal that maintains its integrity even under fluctuating pressure, temperature cycling, shock, and vibration — making it the preferred sealing solution across oil and gas, petrochemical, power generation, and pharmaceutical industries.

What Is a Spiral Wound Gasket?

A Spiral Wound Gasket (SWG) is a semi-metallic sealing component engineered for industrial piping systems where standard soft gaskets cannot withstand the operating conditions. It is constructed from a pre-formed V-shaped metal strip — commonly stainless steel 316L — wound together with a soft filler material such as flexible graphite or PTFE, forming a sealing element with both elastic recovery and compressive strength.

When installed between flanges and subjected to bolt load, the gasket compresses: the soft filler flows to fill flange surface irregularities, while the metal winding acts like a heavy-duty spring, maintaining sealing stress through thermal expansion and contraction. This combination gives spiral wound gaskets excellent blowout resistance and the ability to perform reliably under shock, vibration, and pressure cycling — conditions where flat gaskets typically fail.

Spiral wound gaskets are widely used for sealing the following:

  • Flange joints in oil, gas, and petrochemical process piping
  • Boilers, heat exchangers, and pressure vessels
  • Steam systems and high-temperature process lines
  • Valve and tube cover connections handling acids, hydrocarbons, and solvents
    Types of Spiral Wound Gaskets We Supply

    We manufacture and supply spiral wound gaskets in all standard styles, each suited to specific flange types and operating conditions.

    Style R (Sealing Element Only)—Consists only of the spiral wound winding with no inner or outer ring, relying entirely on compression of the windings to fill flange face irregularities. Used exclusively with flanges that provide their own centering, such as tongue-and-groove or male-and-female designs. Not suitable for raised-face or flat-face flanges.

    Style RIR (Reinforced with Inner Ring) — Includes an inner ring alongside the basic winding, designed to prevent solids accumulation, reduce turbulent flow, and minimize erosion at the flange face. Used for male and female flange configurations.

    Style CG (Centering Ring) — The most common and widely used spiral wound gasket style, featuring an outer centering ring that ensures accurate alignment on the flange face and provides extra radial strength to protect the spiral winding. Suitable for both flat face and raised face flanges.

    Style CGI (Centering Ring with Inner Ring) — Combines the benefits of an outer centering ring and an inner ring, offering additional stability, blowout resistance, and flange protection. This is the recommended style for Class 600 and above, high-temperature service, and corrosive or harsh operating conditions — often referred to as the gold standard for critical applications.

    We also supply specialised configurations including Style HE, HE-CG, HE-CGI, CG-RJ, and Type 625 for specific heat exchanger and high-integrity sealing applications.

    Spiral Wound Gasket Material Options

    Selecting the correct combination of winding material and filler is essential for matching the gasket to your process media, pressure class, and operating temperature.

    Winding Materials — Stainless Steel 304 and 316L are the most commonly used windings, offering an excellent balance of strength and corrosion resistance. For more aggressive or high-value applications, we also supply Monel, Inconel, and Hastelloy windings.

    Filler Materials — Flexible graphite filler offers excellent high-temperature resistance, typically operating from cryogenic conditions up to approximately 450–550°C. PTFE filler is chemically inert and ideal for aggressive chemical media, though limited to lower temperatures (typically up to 250°C before decomposition begins). Mica filler is used for high-temperature, oxidative environments where graphite is unsuitable. Non-asbestos fillers offer a safe, stable alternative for general process applications.

    Color Coding — All our spiral wound gaskets follow the industry-standard ASME B16.20 color coding system, where the outer edge of the centering ring is painted to identify the winding material (solid color) and the filler material (color stripes), helping ensure correct gasket selection and preventing installation errors.

    → See our Foam Pigs and Bi-Directional Pigs for pipeline cleaning before flange assembly

    Key Features of Our Spiral-Wound Gaskets

    High pressure and temperature capability — Suitable for pressure classes up to 2500 and temperatures from cryogenic levels up to approximately 2000°F, depending on material selection.

    Elastic recovery — The V-shaped metal winding acts as a spring, maintaining sealing stress during thermal cycling, pressure fluctuations, and mechanical vibration.

    Blowout resistance — The interlocking spiral structure resists failure even under extreme pressure surges.

    Chemical compatibility — Filler materials can be selected to suit aggressive media, including hydrocarbons, steam, acids, and solvents.

    ASME B16.20 and DIN compliant — Manufactured to international standards, suiting ASME B16.5, ASME B16.47 Series A and B, and BS 1560 flanges.

    Custom configurations available — Including rectangular shapes, heat exchanger gaskets, and gaskets with integrated bars for non-standard applications.

    → View our complete Pipeline Equipment catalogue

    Technical Specifications — Spiral Wound Gaskets
    Specification Details
    Type Semi-Metallic Spiral Wound Gasket (SWG)
    Standard Styles R, RIR, CG, CGI (also HE, HE-CG, HE-CGI, Type 625 available)
    Standard ASME B16.20, DIN, BS 4865-2
    Compatible Flanges ASME B16.5, ASME B16.47 Series A & B, BS 1560
    Pressure Class 150 to 2500
    Winding Materials SS 304, SS 316L, Monel, Inconel, Hastelloy
    Filler Materials Flexible Graphite, PTFE, Mica, Non-Asbestos
    Temperature Range (Graphite Filler) Cryogenic up to approx. 450–550°C
    Temperature Range (PTFE Filler) -200°C to approx. 250°C
    Sealing Element Thickness (Standard) 4.5 mm uncompressed, compresses to approx. 3.2–3.4 mm
    Ring Thickness Approx. 3.2 mm
    Color Coding Per ASME B16.20 standard

    Custom sizes, materials, and special configurations (rectangular, integrated bars, heat exchanger types) are available on request.

    Spiral Wound Gaskets Supplier in Gujarat

    Gujarat’s strong refinery, petrochemical, and process plant base makes it one of India’s most active markets for spiral wound gaskets.

    Ahmedabad is our primary manufacturing and supply hub. We supply spiral wound gaskets to valve manufacturers, EPC contractors, and process plant maintenance teams operating across Ahmedabad’s GIDC industrial estates, including Naroda, Odhav, and Vatva. Ahmedabad buyers regularly order Style CG and CGI gaskets in stainless steel with graphite filler for general process flange maintenance.

    In Surat, demand comes from the city’s chemical and textile process industries, where spiral wound gaskets are used in high-pressure flange assemblies across the Sachin and Pandesara GIDC industrial zones.

    Vadodara (Baroda), home to major refineries and petrochemical complexes including IOCL Koyali, generates strong, consistent demand for high-grade spiral wound gaskets used in critical process piping, heat exchangers, and steam systems. We supply Style CGI gaskets in stainless steel and exotic alloy windings to Vadodara’s refinery contractors and fabrication yards in the Manjusar GIDC and Savli industrial belt.

    Rajkot’s engineering and valve manufacturing industry relies on our spiral wound gaskets for OEM valve production and aftermarket flange maintenance across the Aji GIDC, Shapar-Veraval, and Metoda industrial zones.

    We also actively supply to Kachchh (Bhuj, Gandhidham — a major port and refinery corridor), Amreli, Aravalli, Gandhinagar, Navsari, Godhra (Panchmahal), and Palanpur (Banaskantha), covering Gujarat’s major industrial hubs and tier-2 project zones.

    → Request a quote for Spiral Wound Gaskets in Gujarat

    Spiral Wound Gaskets Supplier in Tamil Nadu

    Tamil Nadu is home to some of India’s largest refinery, port, and process plant facilities, making it a key market for spiral wound gaskets.

    We supply Spiral Wound Gaskets in Chennai to pipeline contractors, valve manufacturers, and maintenance teams working across the city’s refinery belt and industrial estates. Chennai’s process plants and CGD network create steady demand for both Style CG and CGI gaskets throughout the year.

    Coimbatore, a major industrial and pump manufacturing hub, is another strong market where our spiral wound gaskets are supplied for flange sealing in pumps, valves, and process equipment. Our gaskets are also regularly supplied to customers in Trichy (Tiruchirappalli), Madurai, Salem, Tirunelveli, Erode, Vellore, and Thoothukudi (Tuticorin) — a key port and petrochemical city.

    We additionally serve Hosur’s auto and industrial cluster, and Nagapattinam for coastal refinery and process piping requirements.

    → Check pricing for Spiral Wound Gaskets in Tamil Nadu

    Spiral Wound Gaskets Supplier in Kerala

    Kerala’s coastal refineries, port infrastructure, and chemical processing industry create steady demand for spiral wound gaskets across the state’s major districts.

    We supply Spiral Wound Gaskets in Kochi (Ernakulam), home to the BPCL Kochi Refinery and a major port and industrial belt, where spiral wound gaskets are used extensively in refinery flange sealing and turnaround maintenance. In Thiruvananthapuram, the state capital, our gaskets support process plant and industrial flange maintenance.

    We also serve Kozhikode (Calicut), Thrissur, Kollam, Kannur, and Alappuzha, covering Kerala’s major industrial and coastal process plant zones.

    → Enquire about Spiral Wound Gaskets delivery in Kerala

    Spiral Wound Gaskets Supplier in Andhra Pradesh

    Andhra Pradesh’s growing refinery sector, port infrastructure, and chemical processing industry make it an active market for spiral wound gaskets.

    We supply Spiral Wound Gaskets in Visakhapatnam (Vizag), home to the HPCL Visakh Refinery and a major port zone, where spiral wound gaskets are used for flange sealing in refinery and process piping. In Vijayawada, a key commercial and industrial centre, our gaskets support process plant flange maintenance.

    We also serve Guntur, Nellore, Kakinada (an active oil and gas exploration and refinery hub), Kurnool, and Tirupati for industrial flange sealing projects across the state.

    → Get a quote for Spiral Wound Gaskets in Andhra Pradesh

    Spiral Wound Gaskets Supplier in Telangana

    Telangana’s industrial growth, particularly around Hyderabad’s manufacturing, pharmaceutical, and process plant sectors, creates consistent demand for spiral wound gaskets.

    We supply Spiral Wound Gaskets in Hyderabad, Telangana’s largest industrial and commercial hub, to pipeline contractors and industrial procurement teams across the city’s HITEC City, Patancheru, and Jeedimetla industrial zones. Our gaskets are used for both general process flange maintenance and critical pharmaceutical process piping applications.

    We also serve Warangal, Nizamabad, Karimnagar, and Khammam for industrial flange sealing projects across the state.

    → Enquire about Spiral Wound Gaskets supply in Telangana

    Style CGI Spiral Wound Gaskets—For Class 600 and Above

    For high-pressure, high-temperature service above Class 600, or where additional blowout resistance and flange protection are required, our Style CGI Spiral Wound Gasket is the recommended choice over standard Style CG.

    Key benefits of this variant:

    • Inner ring protects the metal windings from heat and prevents inward buckling under high temperature
    • Recommended as standard for corrosive media and harsh operating conditions
    • Negligible cost difference compared to Style CG, but significantly reduces risk of gasket failure
    • Available in all standard winding and filler material combinations

    This variant is particularly suited to refinery process units, high-pressure steam systems, and any critical flange joint where unplanned downtime carries a high cost.

    → View specifications for our Style CGI Spiral Wound Gasket

    Why Choose Us for Spiral Wound Gaskets?

    We are a trusted manufacturer and supplier of spiral wound gaskets and flange sealing components, serving customers across Gujarat and South India with a strong reputation for precision manufacturing and material compliance.

    Pan-India dispatch — We serve Gujarat’s major cities and districts alongside Tamil Nadu, Kerala, Andhra Pradesh, and Telangana, with most standard sizes dispatched within 24 to 48 hours.

    All standard styles available — Style R, RIR, CG, and CGI, plus specialised configurations including HE, HE-CG, HE-CGI, and Type 625, manufactured to ASME B16.20.

    Complete material range — Stainless steel 304/316L, Monel, Inconel, and Hastelloy windings with graphite, PTFE, mica, or non-asbestos fillers.

    ASME B16.20 color coding — Every gasket clearly marked for fast, error-free identification on site.

    Technical support — Our team helps you select the right style, winding material, and filler combination based on your flange class, pressure rating, temperature, and process media.

    → Explore our RTJ Gaskets for ring type joint flange applications

    → View our Pressure Seal Gasket for high-pressure valve bonnet sealing

    → See our full Pipeline Equipment catalogue

    Frequently Asked Questions — Spiral Wound Gaskets

    What is a spiral wound gasket used for?
    A spiral wound gasket is used to seal flange joints, valves, heat exchangers, boilers, and pressure vessels in high-pressure, high-temperature, and corrosive process applications across oil and gas, petrochemical, and power generation industries.

    What is the difference between Style CG and Style CGI?
    Style CG has an outer centering ring for alignment and is suitable for flat face and raised face flanges. Style CGI adds an inner ring as well, providing additional blowout resistance and flange protection, and is recommended for Class 600 and above, high-temperature service, or corrosive operating conditions.

    What filler material should I choose for my spiral wound gasket?
    Flexible graphite is best for high-temperature applications (up to approximately 450–550°C). PTFE is chemically inert and ideal for aggressive chemical media but limited to lower temperatures (up to approximately 250°C). Mica filler suits high-temperature, oxidative environments where graphite is not suitable.

    Do you supply spiral wound gaskets in Gujarat?
    Yes. We supply across Ahmedabad, Surat, Vadodara, Rajkot, Kachchh, Amreli, Aravalli, Gandhinagar, Navsari, Godhra, and Palanpur, with fast dispatch from our Gujarat facility.

    Can I get spiral wound gaskets delivered to Tamil Nadu, Kerala, Andhra Pradesh, or Telangana?
    Yes. We regularly supply to Chennai, Coimbatore, Trichy in Tamil Nadu; Kochi, Thiruvananthapuram in Kerala; Visakhapatnam, Vijayawada in Andhra Pradesh; and Hyderabad, Warangal in Telangana.

    What pressure classes do your spiral wound gaskets support?
    Our spiral wound gaskets are manufactured to ASME B16.20 and support pressure classes from 150 up to 2500, depending on size, style, and material combination.

    How do I identify the material of a spiral wound gasket?
    Identification is done through color coding on the outer ring as per ASME B16.20. The solid color identifies the metal winding (for example, green for 316L stainless steel), while color stripes identify the filler material (such as gray for flexible graphite).

    Get a Quote—Spiral Wound Gaskets

    We supply Spiral Wound Gaskets — Style R, RIR, CG, and CGI, in stainless steel, Monel, Inconel, and Hastelloy windings with graphite, PTFE, or mica fillers — to buyers across Gujarat (Ahmedabad, Surat, Vadodara, Rajkot, Kachchh, Amreli, Aravalli, Gandhinagar, Navsari, Godhra, Palanpur) and across Tamil Nadu, Kerala, Andhra Pradesh, and Telangana.

    Contact us today for the best price, technical guidance, and fastest dispatch for your flange sealing project.

    → Contact Us Now for Best Price on Spiral Wound Gaskets

    → Download Our Pipeline Equipment Catalogue

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