Petrochemical & Refining
Flange sealing for heat exchangers, reactors, columns and piping systems handling hydrocarbons at high temperature and pressure.
Industrial Spiral Wound Gasket
Spiral Wound Gasketfor High-Pressure, High-Temperature Flange Sealing
Spiral wound gaskets manufactured with alternating V-shaped metal strips and soft filler materials, providing excellent resilience, blow-out resistance and reliable sealing under extreme temperature and pressure fluctuations. Available with inner ring, outer ring or both, conforming to ASME B16.20 and other international standards.
Metal & Filler Construction
High Pressure & Temperature
ISO 9001 & RoHS
OEM & Bulk Orders
Spiral Wound Gasket
High-Performance Metal Gasket
OEM
Custom Supply
Our Spiral Wound Gaskets
Spiral Wound Gasket Products
Explore spiral wound gaskets for high-pressure, high-temperature flange sealing applications. Available in various metal strip and filler combinations, with or without inner and outer rings, conforming to ASME B16.20, HG/T 20610, EN 1514 and other standards.
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Spiral Wound Gasket
Spiral Wound Metal Gaskets
Spiral Wound Gasket Supplier
Spiral Wound Gaskets for Demanding Flange Connections
Spiral wound gaskets are semi-metallic gaskets composed of a preformed V-shaped metal strip spirally wound with a soft non-metallic filler material. The metal strip provides structural strength and resilience, while the filler ensures excellent sealing conformity under fluctuating temperature and pressure conditions.
These gaskets are widely used in petrochemical, oil and gas, power generation, and chemical processing industries for flanges rated from Class 150 to Class 2500 and even higher. Common metal strip materials include 304, 316L, 321, 347 stainless steel, Monel, Inconel, and titanium. Filler materials include flexible graphite, PTFE, non-asbestos fiber, and ceramic fiber, each offering different temperature and chemical resistance properties.
Spiral wound gaskets can be supplied as basic type (without rings), with inner ring (IR), with outer ring (OR), or with both inner and outer rings (IR/OR). The rings provide additional centering, compression limiting, and blow-out protection. We supply spiral wound gaskets to overseas distributors, EPC contractors, maintenance companies and OEM customers.
Excellent Resilience
V-shaped metal winding provides high recovery, maintaining seal under pressure and temperature fluctuations.
High Pressure & Temperature
Suitable for flanges up to Class 2500 and temperatures from -200°C to +650°C depending on filler.
Blow-Out Resistance
Metal winding and optional rings provide superior blow-out resistance in high-pressure service.
Multiple Standards
Manufactured to ASME B16.20, EN 1514, HG/T 20610 and other international standards.
Material Advantages
Why Choose Spiral Wound Gaskets?
Spiral wound gaskets provide a unique combination of mechanical strength, resilience, and sealing performance that is unmatched by conventional gasket materials in high-pressure and high-temperature applications.
01
High Resilience & Recovery
The V-shaped metal winding acts as a spring, providing excellent recovery and maintaining seal integrity under thermal cycling and pressure fluctuations.
02
Wide Temperature & Pressure Range
Depending on the filler material, spiral wound gaskets can handle temperatures from -200°C to +650°C and pressures up to Class 2500 or higher.
03
Superior Blow-Out Resistance
The metal winding and optional compression rings provide excellent resistance to blow-out, making these gaskets ideal for high-pressure and critical services.
04
Versatile Material Combinations
Choose from a wide range of metal strip and filler materials to optimize chemical compatibility and temperature resistance for your specific application.
05
Standardized Dimensions
Manufactured to ASME B16.20, EN 1514, HG/T 20610 and other standards, ensuring compatibility with standard flanges and easy replacement.
06
B2B Industrial Supply
Suitable for EPC contractors, distributors, OEM customers, maintenance companies and bulk purchasing programs.
Technical Specifications
Spiral Wound Gasket Specifications
Technical performance depends on the metal strip material, filler material, ring configuration and gasket dimensions. The values below are typical for standard spiral wound gaskets and should be confirmed for the selected configuration before ordering.
| Product | Spiral Wound Gasket |
|---|---|
| Metal Strip Materials | 304, 304L, 316, 316L, 321, 347, Monel 400, Inconel 600, Inconel 625, Titanium, etc. |
| Filler Materials | Flexible Graphite, PTFE, Non-Asbestos Fiber, Ceramic Fiber, Mica, etc. |
| Gasket Types | Basic type (without rings), with Inner Ring (IR), with Outer Ring (OR), with Inner & Outer Ring (IR/OR) |
| Temperature Range | Graphite filler: -200°C to +450°C (oxidizing) / +650°C (steam or non-oxidizing); PTFE filler: -200°C to +260°C; Non-asbestos filler: -100°C to +250°C; Ceramic filler: up to +1000°C depending on metal strip. Actual limits depend on materials. |
| Pressure Range | Suitable for flange classes from Class 150 to Class 2500 (PN10 to PN420). Maximum pressure depends on gasket size, flange type and operating temperature. |
| Applicable Standards | ASME B16.20, EN 1514-1/2, HG/T 20610, HG/T 20631, API 601, etc. |
| Gasket Thickness | 3.2 mm, 4.5 mm typical (standard); custom thicknesses available |
| Size Range | DN15 (1/2") to DN600 (24") standard; larger sizes available up to DN3000 (120") or custom |
| Ring Material | Outer ring: carbon steel (galvanized or painted), stainless steel; Inner ring: stainless steel matching metal strip material |
| Supply Form | Individual gaskets, sets per flange, or bulk packaging; customized packaging available |
| Compliance | ISO 9001 quality management and RoHS compliance documentation available where applicable; NACE MR0175 compliance available for sour service applications |
Gasket Dimensions
Spiral Wound Gasket Size Chart
Spiral wound gaskets are manufactured to standard flange dimensions according to ASME B16.20, EN 1514, HG/T 20610 and other standards. The following table lists common nominal sizes with typical thicknesses and ring configurations. Custom sizes are available.
| Nominal Size | Standard Thickness | Typical Flange Class | Ring Configuration |
|---|---|---|---|
| DN15 (1/2") | 4.5 mm | Class 150 – Class 2500 | Basic / IR / OR / IR/OR |
| DN20 (3/4") | 4.5 mm | Class 150 – Class 2500 | Basic / IR / OR / IR/OR |
| DN25 (1") | 4.5 mm | Class 150 – Class 2500 | Basic / IR / OR / IR/OR |
| DN50 (2") | 4.5 mm | Class 150 – Class 2500 | Basic / IR / OR / IR/OR |
| DN80 (3") | 4.5 mm | Class 150 – Class 2500 | Basic / IR / OR / IR/OR |
| DN100 (4") | 4.5 mm | Class 150 – Class 2500 | Basic / IR / OR / IR/OR |
| DN150 (6") | 4.5 mm | Class 150 – Class 2500 | Basic / IR / OR / IR/OR |
| DN200 (8") | 4.5 mm | Class 150 – Class 2500 | Basic / IR / OR / IR/OR |
| DN300 (12") | 4.5 mm | Class 150 – Class 2500 | Basic / IR / OR / IR/OR |
| DN600 (24") | 4.5 mm | Class 150 – Class 2500 | Basic / IR / OR / IR/OR |
* Reference nominal sizes and thicknesses are shown for procurement guidance. Actual dimensions conform to the applicable flange standard. Larger sizes and custom dimensions are available subject to specification.
Industrial Applications
Spiral Wound Gasket Applications
Spiral wound gaskets are the preferred choice for critical flange connections in high-pressure, high-temperature and corrosive environments across various industries.
Oil & Gas Production
Gaskets for wellheads, manifolds, pipelines and processing equipment requiring reliable sealing under extreme conditions.
Power Generation
Steam turbine flanges, boiler manholes, and piping systems in thermal and nuclear power plants.
Chemical Processing
Flanges for pumps, valves and equipment handling aggressive chemicals, solvents and corrosive media.
Pharmaceutical & Food
Sanitary and high-purity flange connections using PTFE-filled spiral wound gaskets.
Shipbuilding & Marine
Flange sealing for marine piping systems, exhaust systems and engine rooms requiring robust gaskets.
Selection Guide
How to Choose Spiral Wound Gaskets
The correct spiral wound gasket configuration should be selected based on flange standard, pressure class, operating temperature, chemical media and required ring type.
01
Flange Standard & Size
Identify the flange standard (ASME, EN, HG, etc.) and nominal size to ensure the gasket dimensions match the flange facing.
02
Metal & Filler Selection
Choose metal strip material based on corrosion resistance and temperature; choose filler material (graphite for high temp, PTFE for chemical resistance, etc.) based on media.
03
Ring Configuration
Determine if inner ring, outer ring, or both are required for centering, compression limiting and blow-out protection.
04
Operating Conditions
Confirm temperature, pressure, and chemical exposure to select the optimal material combination and gasket style.
Manufacturing
Controlled Production for Consistent Quality
Precision winding, consistent filler distribution and accurate ring dimensions are critical for reliable spiral wound gasket performance.
PROCESS / 01
Material Preparation
Metal strips are precision-formed into V-shaped profiles, and filler materials are prepared to the required width and thickness.
PROCESS / 02
Spiral Winding
The V-shaped metal strip and filler material are alternately wound under controlled tension to form the spiral body of the gasket.
PROCESS / 03
Ring Assembly & Inspection
Inner and/or outer rings are assembled, and the finished gasket is inspected for dimensions, density, and surface quality.
PROCESS / 04
Packaging & Shipment
Gaskets are packaged individually or in sets with protective interleaving, ready for export.
Why Choose hongwo
A B2B Supplier for Industrial Gaskets
We focus on supplying industrial gaskets to overseas distributors, EPC contractors, equipment manufacturers, maintenance companies and industrial buyers.
Industrial Product Focus
Focused on industrial gaskets and sealing
products for B2B applications.
ISO 9001 & RoHS
Quality management and RoHS compliance
documentation available where applicable.
OEM & Custom Supply
Support for customized materials, dimensions,
and packaging.
Application-Based Support
Provide your flange standard, operating
conditions and media so we can help
identify a suitable spiral wound gasket
configuration.
Request a Quote
Tell Us Your Spiral Wound Gasket Requirements
The more technical information you provide, the more accurately we can recommend the appropriate spiral wound gasket configuration and prepare a quotation.
You can also send a drawing, flange details or required specifications after our sales team contacts you.
FAQ
Frequently Asked Questions About Spiral Wound Gaskets
What is a spiral wound gasket?
A spiral wound gasket is a semi-metallic gasket made
by winding a V-shaped metal strip and a soft filler
material together. It provides excellent resilience
and sealing performance under extreme temperature and
pressure conditions.
What materials are available for spiral wound gaskets?
Metal strip materials include 304, 316L, 321, 347,
Monel, Inconel and titanium. Filler materials include
flexible graphite, PTFE, non-asbestos fiber and ceramic
fiber. Ring materials are typically carbon steel or
stainless steel.
What are the advantages of spiral wound gaskets?
They offer high resilience, excellent recovery, wide
temperature and pressure range, and superior blow-out
resistance. They are ideal for critical flange
connections in petrochemical, power and chemical
industries.
What is the temperature range of spiral wound gaskets?
With graphite filler, the temperature range is -200°C
to +450°C in oxidizing atmospheres and up to +650°C
in steam. PTFE filler is limited to -200°C to +260°C.
Ceramic filler can handle higher temperatures depending
on the metal strip.
What are the standard flange standards for spiral wound gaskets?
Common standards include ASME B16.20, EN 1514,
HG/T 20610, HG/T 20631 and API 601. Gaskets are
manufactured to match standard flange dimensions.
What ring configurations are available?
Spiral wound gaskets can be supplied as basic type
(without rings), with inner ring (IR), with outer ring
(OR), or with both inner and outer rings (IR/OR).
The choice depends on flange design and service
conditions.
Can spiral wound gaskets be reused?
Generally, spiral wound gaskets are not recommended
for reuse after they have been compressed in service,
as the metal winding may have deformed and lost its
resilience. For critical applications, new gaskets
should always be used.
What information is needed for a quotation?
Please provide flange standard, nominal size, pressure
class, operating temperature, media, preferred metal
and filler materials, ring configuration, and required
quantity.
Are spiral wound gaskets RoHS compliant?
RoHS compliance can be provided for applicable
materials and documentation requirements. Please
confirm when requesting a quotation.
Industrial Spiral Wound Gasket
Get a Spiral Wound Gasket Quote for Your Flanges
Tell us your flange standard, size, pressure class, operating conditions and media. Our team will review your requirements and provide a suitable product recommendation and quotation.
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