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Trusted Spiral Wound Gasket Manufacturer for Critical Industrial Applications
As a leading Spiral Wound Gasket Manufacturer, Asian Sealing Products Pvt. Ltd. delivers high-performance sealing solutions engineered for demanding industrial applications. Our spiral wound gaskets are widely used in petrochemical plants, refineries, power generation facilities, chemical processing units, offshore platforms, pipelines, heat exchangers, and pressure vessels where reliable sealing is essential for operational safety and efficiency.
A spiral wound gasket is manufactured by spirally winding a preformed metal strip together with a soft filler material, creating a resilient sealing element capable of withstanding high temperatures, extreme pressures, and thermal cycling. This unique combination of metallic strength and filler flexibility enables the gasket to maintain a leak-tight seal even under fluctuating operating conditions, vibration, and flange movement.
Designed in accordance with ASME B16.20, ASME B16.5, API, EN, BS, DIN, and JIS standards, our spiral wound gaskets offer excellent recovery, blowout resistance, and long-term sealing performance across a wide range of process media. Available in various material combinations, sizes, and configurations including inner ring, outer ring, and centering ring designs, ASP’s spiral wound gaskets are trusted by industries worldwide for critical sealing applications where reliability cannot be compromised.
Industry standards
ASME B16.20, ASME B16.5, ASME B16.47 Series A & B, API 605, MSS SP44, EN 1514-2, BS 3381, BS 4865-2, JIS B2404, DIN 2632
Usage of industries
Oil and Gas
Chemical Industry
Power Generation
Mining
Marine
Spiral Wound Gasket
Trusted Spiral Wound Gasket Manufacturer for Critical Industrial Applications
As a leading Spiral Wound Gasket Manufacturer, Asian Sealing Products Pvt. Ltd. delivers high-performance sealing solutions engineered for demanding industrial applications. Our spiral wound gaskets are widely used in petrochemical plants, refineries, power generation facilities, chemical processing units, offshore platforms, pipelines, heat exchangers, and pressure vessels where reliable sealing is essential for operational safety and efficiency.
A spiral wound gasket is manufactured by spirally winding a preformed metal strip together with a soft filler material, creating a resilient sealing element capable of withstanding high temperatures, extreme pressures, and thermal cycling. This unique combination of metallic strength and filler flexibility enables the gasket to maintain a leak-tight seal even under fluctuating operating conditions, vibration, and flange movement.
Designed in accordance with ASME B16.20, ASME B16.5, API, EN, BS, DIN, and JIS standards, our spiral wound gaskets offer excellent recovery, blowout resistance, and long-term sealing performance across a wide range of process media. Available in various material combinations, sizes, and configurations including inner ring, outer ring, and centering ring designs, ASP’s spiral wound gaskets are trusted by industries worldwide for critical sealing applications where reliability cannot be compromised.
Industry standards
ASME B16.20, ASME B16.5, ASME B16.47 Series A & B, API 605, MSS SP44, EN 1514-2, BS 3381, BS 4865-2, JIS B2404, DIN 2632
Usage of industries
Oil and Gas
Chemical Industry
Power Generation
Mining
Marine
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Spiral Wound Gasket (SPW) Types
Spiral wound gaskets come in four configurations to match different flange designs and pressure classes. Type G (basic) is just the metal winding and filler, suited to tongue & groove or flat-face flanges. Type CG adds an outer centering ring to keep the gasket aligned and prevent over-compression on raised-face flanges. Type GI adds an inner ring instead, which resists inward buckling in high-pressure service. Type CGI uses both rings for maximum stability and is the standard choice for severe, high-pressure, high-temperature applications.
Spiral wound gaskets come in four configurations to match different flange designs and pressure classes. Type G (basic) is just the metal winding and filler, suited to tongue & groove or flat-face flanges. Type CG adds an outer centering ring to keep the gasket aligned and prevent over-compression on raised-face flanges. Type GI adds an inner ring instead, which resists inward buckling in high-pressure service. Type CGI uses both rings for maximum stability and is the standard choice for severe, high-pressure, high-temperature applications.
Type CGI
Type CG
Type GI
Type G
Your Trusted Partner for Reliable Sealing Solutions
Excellent Sealing Performance
Provides a reliable, leak-tight seal under high-pressure, high-temperature conditions, ensuring long-term operational safety.
High Temperature & Pressure Resistance
Designed to withstand extreme environments with wide temperature and pressure ranges, making it suitable for critical applications.
Superior Compression & Recovery
The spiral-wound construction offers excellent elasticity and resilience, maintaining sealing integrity during thermal cycling and load fluctuations.
Blowout Resistance & Structural Stability
Engineered to prevent gasket failure, inward buckling, and blowouts, ensuring enhanced durability in demanding systems.
Wide Material Compatibility
Available in various metal alloys (SS304, SS316, etc.) and filler materials (Graphite, PTFE, Ceramic Fiber) to suit diverse chemical and industrial requirements.
Spiral Wound Gasket Applications
Spiral wound gaskets are built for sealing joints that face thermal cycling, pressure swings and mechanical vibration in conditions where a standard flat gasket loses compression and starts to leak. The semi-metallic construction keeps sealing stress consistent across load fluctuations, with strong blowout resistance and low fugitive emissions, which is why they’re the default choice in pipeline flanges, refinery units, offshore platforms, chemical reactors, boiler systems and water treatment plants handling variable pressure and temperature.
Spiral wound gaskets are built for sealing joints that face thermal cycling, pressure swings and mechanical vibration in conditions where a standard flat gasket loses compression and starts to leak. The semi-metallic construction keeps sealing stress consistent across load fluctuations, with strong blowout resistance and low fugitive emissions, which is why they’re the default choice in pipeline flanges, refinery units, offshore platforms, chemical reactors, boiler systems and water treatment plants handling variable pressure and temperature.
Oil and Gas
- Pipeline flange connections
- Oil refineries and processing units
- Offshore drilling platforms
- Petrochemical transfer pipelines
Petrochemical Industry
- Flange joints in petrochemical plants
- High-temperature processing units
- Hydrocarbon processing systems
Chemical Processing
- Sealing joints in chemical reactors
- Flange connections in chemical plants
Pharmaceutical
- Pharmaceutical manufacturing equipment
- Sealing joints in cleanroom environments
Nuclear Power Generation
- Boiler systems
- Flange joints in oil refineries
Water Treatment
- Used in desalination plants, wastewater treatment
- providing effective sealing under varying pressure and temperature conditions.
Spiral Wound Gasket Materials
At Asian Sealing Products, spiral wound gaskets are manufactured using certified metallic winding materials and high-performance filler compounds to ensure reliable sealing under demanding service conditions. Each material is carefully selected based on chemical compatibility, operating temperature range, pressure class, and media characteristics, ensuring optimal performance and safety. We offer a wide range of metallic windings, including SS304, SS316, SS321, and other corrosion-resistant alloys, combined with premium filler materials such as Flexible Graphite, PTFE, and Ceramic Fiber. This combination provides excellent thermal stability, compressibility, and recovery, enabling the gasket to maintain sealing integrity under extreme pressure and temperature variations. All materials are sourced and processed in accordance with international quality standards, ensuring consistent mechanical strength, corrosion resistance, and long service life across critical industrial applications.
Ring gaskets are manufactured using various materials based on the application’s requirements. The material selection depends on factors such as the type of fluids being sealed, operating conditions (including temperature and pressure), and the overall environment. Here are some common materials used for manufacturing ring gaskets:
Filler Materials
Graphite- Flexible Graphite and Nuclear Grade Graphite, PTFE- Virgin PTFE and Filled PTFE, Non-Asbestos, Mica, Ceramic Fiber, Vermiculite
Winding Materials
316L Stainless Steel, 304 Stainless Steel, Monel® (Nickel-Copper Alloy), Inconel® (Nickel-Chromium Alloy), Other Stainless Steel Grades (e.g., 321, 347), Carbon Steel, Titanium, Hastelloy®, Duplex Stainless Steel
Inner and outer ring
Carbon Steel, Stainless Steel (various grades, e.g., 304, 316, 316L), Monel®, Inconel®
Product Details
What is a Spiral Wound Gasket (SPW)?
A Spiral Wound Gasket (SPW) is a high-performance semi-metallic sealing component engineered for industrial piping systems where a standard gasket would fail. It is the primary choice for high-pressure, high-temperature, and corrosive environments, providing a robust seal that adapts to fluctuating operating conditions.
The unique performance of an SWG comes from its composite construction:
- Metallic Winding: A pre-formed V-shaped metal strip (commonly Stainless Steel 316L or specialty alloys) provides structural strength and mechanical resilience.
- Soft Filler Material: Alternating layers of soft materials such as Flexible Graphite, PTFE, or Mica are wound with the metal to fill flange irregularities and ensure a gas-tight seal.
This specialized “V-shape” design allows the gasket to act like a heavy-duty spring, creating a dynamic seal with high elastic recovery. This ensures that even if the flange moves due to thermal expansion or vibration, the spiral wound gasket maintains constant tension against the flange faces to prevent leakage.
Type G (Gasket only)
- Medium pressure and temperature applications.
- Pumps, valves, vessels, and general industrial joints.
- Cost-effective choice for automotive and plumbing sectors.
- Highly versatile with multiple metal and filler combinations.
- Reliable sealing for standard, non-extreme applications.
- Simple, economical design for routine maintenance needs.
Type CGI (Gasket with Centering Ring & Inner Ring)
Includes both centering and inner rings for maximum support and alignment. Ideal for high-pressure, high-temperature applications.
- Solid metallic inner & outer ring
- Suitable for high-pressure and temperature applications
- Standard spiral wound gasket for raised face applications
- Effectively reduces fluid turbulence and flange erosion, protecting the sealing surface.
- Minimizes gasket damage by shielding the bore and inner windings from wear and tear.
- Wide choice of materials for filler and metal strip
- Versatile sealing solution for both standard operations and highly critical industrial environments.
Type CG (Gasket with Centering Ring)
Features a centering ring for proper alignment. Suitable for medium pressure and temperature in HVAC, automotive, and general industries.
- 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
- Type CG gasket has a centering ring for alignment and prevents shifting.
- Suitable for medium pressures and temperatures in automotive, HVAC, and plumbing.
Type GI (Gasket with Inner Ring)
The gasket is made solely of the V-shaped metal winding and a non-metallic filler material (such as graphite or PTFE).
- Consists only of the spiral wound sealing element (no inner or outer rings)
- Relies on the compression of the spiral windings to fill flange face irregularities.
- Used exclusively with flanges that provide their own centering mechanism.
- Ideal for tongue and groove or male-to-female flanges in vessels, valves, and pumps.
- Not suitable for raised-face or flat-face flanges due to the lack of a centering or compression stop ring.
Why Choose Asian Sealing Products for Spiral Wound Gaskets?
Choosing the right manufacturer is essential for ensuring reliable sealing, operational safety and reduced maintenance costs. At Asian Sealing Products, we deliver high-quality spiral wound gaskets designed for consistent performance in demanding applications.
- Precision Winding Technology
Automated winding ensures uniform density and optimal sealing performance under pressure, temperature fluctuations, and vibration. - Premium Materials & Traceability
Manufactured using certified alloys like SS304, SS316L, Inconel, Monel, and Hastelloy with high-performance fillers, ensuring durability and full material traceability. - Standards Compliance
Produced as per ASME B16.20, API, DIN and EN standards, with strict quality checks and Material Test Certificates (MTCs). - Fast Delivery & Technical Support
Quick turnaround with expert support for custom designs and non-standard applications.
Spiral Wound Gasket Standards and Specifications
At Asian Sealing Products, our spiral wound gaskets are manufactured in strict compliance with global industry standards to ensure precision fit, safety, and reliable sealing performance across diverse industrial applications. Each gasket is designed to match specific flange standards, pressure classes, and operating conditions.
Below are the standards we comply with:
ASME Standards
- ASME B16.20
Core standard for metallic gaskets, including spiral wound gaskets. Defines dimensions, materials, and performance requirements. - ASME B16.5
Covers pipe flanges from NPS ½ to 24. Our gaskets are fully compatible across all pressure classes. - ASME B16.47 Series A (MSS SP-44)
Designed for large-diameter, high-pressure flanges (NPS 26–60) with robust construction. - ASME B16.47 Series B (API 605)
Suitable for large-diameter, lower-pressure applications, with lighter flange designs.
British Standards (BS)
- BS 1569, BS 3274, BS 3381, BS 4504
Cover flange dimensions and gasket compatibility. Our gaskets are manufactured to suit all applicable BS flange types.
European Standards (EN)
- EN 1092 (BS EN 1092)
Specifies flanges for steel, cast iron, and copper alloys. We supply gaskets for all PN ratings. - EN 1759 (BS EN 1759)
Covers class-designated flanges used in industrial piping systems.
API Standards
- API 601
Standard for metallic gaskets used in refinery and high-demand applications. - API 605
Relates to large-diameter flanges (aligned with ASME B16.47 Series B).
DIN Standards (Germany)
We manufacture spiral wound gaskets compatible with a wide range of DIN flange standards.
Exact DIN specification can be provided based on your requirement.
JIS Standards (Japan)
Custom gaskets are available to suit Japanese Industrial Standards (JIS) for various flange types and pressure ratings.
Indian Standards (IS)
- IS 7719 – General requirements for metallic gaskets
- IS 10864 – Specifications for spiral wound gaskets
Our products comply with both quality and performance benchmarks defined under IS standards.
AWWA Standards
We supply gaskets suitable for water and wastewater applications as per AWWA flange standards. Customization is available based on specific project requirements.
Other Recognized Standards
- MSS SP-44 – Steel pipe flanges (linked with ASME B16.47 Series A)
- BS 10 – Legacy British flange standard
- Taylor Forge – Custom gasket dimensions as per flange specifications
- TEMA – Gaskets suitable for heat exchanger applications
Custom Manufacturing Available
In addition to standard specifications, we also manufacture non-standard and custom spiral wound gaskets based on your exact flange drawings, dimensions, and operating conditions.
Customization Options for Spiral Wound Gaskets
Every industrial application is different, and as such, we offer a wide range of customization options to meet the specific needs of our clients. These include:
- Material Selection: Choose from a wide range of metals (stainless steel, carbon steel, Monel, Inconel, etc.) and filler materials (graphite, PTFE, mica, ceramic, etc.) to suit the specific chemical, thermal, and pressure requirements of your application.
- Size and Thickness: Spiral Wound Gaskets are available in a variety of sizes and thicknesses, tailored to fit different flange dimensions and pressure ratings.
- Inner and Outer Diameters: Customizable diameters allow the gasket to fit perfectly within your system’s flange setup.
Special Designs: We can provide Spiral Wound Gaskets with additional design features, such as reinforcement rings, for specific high-pressure applications.
Installation of Spiral Wound Metallic Gaskets
Flange Preparation
- Remove the old gasket and thoroughly clean flange faces to eliminate debris, corrosion, or residue.
- Ensure flange surfaces are free from radial (cross-face) scoring, as this can cause leakage.
- A surface finish of 3.2 μm to 6.3 μm Ra (125–250 micro-inches) is recommended for spiral wound gaskets.
- Check that flange faces are parallel and concentric, or that pipework flexibility allows proper alignment without excessive bolt loading.
Gasket Handling
- Always use a new spiral wound gasket for each installation.
- Verify that gasket dimensions, pressure class, and type match the flange specification.
- Do not apply jointing compounds, grease, or lubricants to metallic gaskets.
- If temporary fixing is required, use only a light spray adhesive to position the gasket.
Installation Procedure
- Position the gasket centrally between the flange faces.
- Insert bolts and finger-tighten nuts evenly.
- Tighten bolts using a controlled method such as torque or tension tightening, following a star or cross-bolt sequence.
- Complete final tightening to the specified torque, ensuring uniform gasket compression.
- After installation, confirm that flange faces remain parallel.
Specifications
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 304H | 304H | Customer Requirement | Customer Requirement | No Colour |
| 5 | SS 309 | 309 | 540°C Max | 160 BHN Max | No Colour |
| 6 | SS 310 | 310 | 540°C Max | 160 BHN Max | No Colour |
| 7 | SS 316 | 316 | 800°C Max | 160 BHN Max | Green |
| 8 | SS 316L | 316L | 800°C Max | 160 BHN Max | Green |
| 9 | SS 316Ti | 316Ti | Customer Requirement | Customer Requirement | No Colour |
| 10 | SS 317L | 317L | 800°C Max | 160 BHN Max | Maroon |
| 11 | SS 321 | 321 | 850°C Max | 160 BHN Max | Turquoise |
| 12 | SS 321H | 321H | Customer Requirement | Customer Requirement | No Colour |
| 13 | SS 347 | 347 | 850°C Max | 160 BHN Max | Blue |
| 14 | SS 347H | 347H | Customer Requirement | Customer Requirement | No Colour |
| 15 | SS 410 | 410 | Customer Requirement | Customer Requirement | No Colour |
| 16 | SS 430 | 430 | 440°C Max | 190 BHN Max | No Colour |
| 17 | SS 904L | 904L | Customer Requirement | Customer Requirement | No Colour |
| 18 | UNS N08367 | AL-6XN | Customer Requirement | Customer Requirement | No Colour |
| 19 | UNS S31254 | SMO 254 | Customer Requirement | Customer Requirement | No Colour |
| 20 | Duplex 32205 | 2205 | Customer Requirement | Customer Requirement | No Colour |
| 21 | Duplex 31803 | 31803 | Customer Requirement | Customer Requirement | No Colour |
| 22 | Duplex 32750 | 2507 | Customer Requirement | Customer Requirement | No Colour |
| 23 | UNS S17700 | 17-7 PH | Customer Requirement | Customer Requirement | No Colour |
| 24 | Monel 400 | MON | 650°C Max | 150 BHN Max | Orange |
| 25 | Nickel 200 | NI | 550°C Max | 160 BHN Max | Red |
| 26 | Titanium Grade 2 | TI 2 | 950°C Max | 160 BHN Max | Purple |
| 27 | Titanium Grade 7 | TI 7 | Customer Requirement | Customer Requirement | Purple |
| 28 | Alloy 20 or Carpenter 20Cb3 | A-20 | Customer Requirement | Customer Requirement | Black |
| 29 | Hastelloy Grade B | HAST B | 950°C Max | 200 BHN Max | Brown |
| 30 | Hastelloy Grade B-2 | HAST B-2 | Customer Requirement | Customer Requirement | Brown |
| 31 | Hastelloy Grade B-3 | HAST B-3 | Customer Requirement | Customer Requirement | Brown |
| 32 | Hastelloy Grade C-276 | HAST C276 | 950°C Max | 200 BHN Max | Beige |
| 33 | Hastelloy Grade C-22 | HAST C22 | Customer Requirement | Customer Requirement | Beige |
| 34 | Hastelloy Grade C-2000 | HAST C2000 | Customer Requirement | Customer Requirement | Beige |
| 35 | Hastelloy Grade X | HAST X | Customer Requirement | Customer Requirement | No Colour |
| 36 | Inconel Grade 600 | INC 600 | 1000°C Max | 200 BHN Max | Gold |
| 37 | Inconel Grade 625 | INC 625 | 1000°C Max | 240 BHN Max | Gold |
| 38 | Inconel Grade X-750 | INX | 950°C Max | 240 BHN Max | No Colour |
| 39 | Inconel Grade 718 | INC 718 | Customer Requirement | Customer Requirement | No Colour |
| 40 | Incoloy Grade 800 | IN 800 | 1000°C Max | 200 BHN Max | White |
| 41 | Incoloy Grade 800H | IN 800H | Customer Requirement | Customer Requirement | White |
| 42 | Incoloy Grade 825 | IN 825 | 1000°C Max | 190 BHN Max | White |
| 43 | Copper | Copper | Customer Requirement | Customer Requirement | No Colour |
| 44 | Copper | Copper | Customer Requirement | Customer Requirement | No Colour |
| 45 | Zirconium | ZIRC | Customer Requirement | Customer Requirement | No Colour |
| 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 | ||
Spiral Wound Gasket Style Designation Table
| Style | Construction | Key features | Typical use cases & limitations |
|---|---|---|---|
| CG Basic / Spiral only | Spiral winding only, no inner or outer ring | Lightest, most flexible style Windings of metallic strip + soft filler (e.g., graphite, PTFE)
No radial constraint |
Male-to-female and tongue-and-groove flanges that provide radial confinement of the winding. Low-pressure heat exchangers, some valve bonnets. Not suitable for raised-face or flat-face flanges, no outer ring to prevent blow-out or buckling. |
| CGI
With the inner ring |
Spiral winding + solid inner ring; no outer ring | Inner ring prevents buckling & over-compression Reduces turbulence/flow erosion at the bore
Adds radial inward stability |
Used in tongue-and-groove or male-female flanges where the outer ring is not needed. High-temperature or high-pressure service where over-compression is a risk. Also common in heat exchanger channel covers. Still requires flanges that provide outer confinement. |
| R
With the outer ring |
Spiral winding + solid outer centering/retaining ring; no inner ring | Outer ring centres gasket on raised-face flange
Acts as a compression limiter (prevents over-tightening) Aids handling & installation |
The most common style for ASME B16.20 raised-face (RF) flanges is in general process piping, refineries and petrochemical plants. Standard choice for ASME Classes 150–2500 raised-face flanges.
No inner ring, susceptible to buckling inward at very high pressures or with aggressive media; bore turbulence possible. |
| RIR
With inner & outer rings |
Spiral winding + solid outer ring + solid inner ring | Combines the benefits of R and CGI
Maximum stability, constrained on both sides Optimal compression control Reduced crevice/turbulence at the bore |
Severe service: high pressure, high temperature, cryogenic, hydrogen service, toxic or lethal fluid category (ASME PCC-1). Preferred for Class 900 and above on raised-face flanges. Mandatory in many refinery critical service specs.
Heavier and more expensive, the inner ring material must be compatible with the process fluid. |
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Answers to all your possible questions.
What is a spiral wound gasket used for?
A spiral wound gasket is used for sealing flanged joints in high-pressure and high-temperature applications, commonly in pipelines, heat exchangers, and pressure vessels.
What temperature can spiral wound gaskets withstand?
Spiral wound gaskets can withstand temperatures ranging from -200°C to 1000°C, depending on the filler material and metal winding used.
Why are spiral wound gaskets used in high-pressure pipelines?
They provide excellent sealing integrity, elasticity, and blowout resistance, allowing them to maintain a leak-tight seal under extreme pressure and fluctuating loads.
What materials are used in spiral wound gaskets?
They are made with metallic windings such as SS304 or SS316 and filler materials like Flexible Graphite, PTFE, or Ceramic Fiber, based on application requirements.
What does the color coding on spiral wound gaskets indicate?
Color coding identifies the metal winding and filler material type, helping ensure correct selection based on temperature, pressure and chemical compatibility.
Why is gasket thickness important in spiral wound gaskets?
Gasket thickness affects compression, sealing performance and load distribution, making it critical for maintaining proper sealing under operating conditions.
When should CGI spiral wound gaskets be used instead of CG types?
CGI gaskets (with inner and outer rings) should be used in high-pressure and high-temperature applications, where additional stability, blowout resistance, and flange protection are required.
What information is required when ordering spiral wound gaskets?
Key details include gasket type, size, pressure class, flange standard, material (metal & filler), thickness and operating conditions.
What is a Vermiculite Spiral Wound Gasket?
A vermiculite spiral wound gasket uses vermiculite filler, offering excellent high-temperature resistance and oxidation stability compared to graphite. They are used in extremely high-temperature applications, such as furnaces, exhaust systems, and environments where graphite oxidation may occur.
Do you export spiral wound gaskets internationally?
Yes, we supply and export spiral wound gaskets to various international markets. We export spiral wound gaskets to multiple regions, including the Middle East, Southeast Asia, Africa, and other global markets. Our team supports bulk orders, custom specifications, and documentation requirements, ensuring smooth delivery and compliance for global industrial applications.
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