Finding the right spiral wound gasket manufacturer depends on flange size, material compatibility, and operating conditions. This guide highlights five practical options for common piping needs, helping buyers choose based on size, material, and environment. The top picks cover standard sizes from 1″ to 8″, with solutions suitable for high-temperature and high-pressure applications. Ideal buyers include maintenance managers, plant engineers, and procurement specialists seeking dependable seals for energy, chemical, and processing industries.
| Product | Brand | Size | Class / Type | Best For |
|---|---|---|---|---|
| Bulk-FG-1973-1 | USASEALING | 1″ | 1/8″ Thick | Small-diameter, general hydrocarbon service |
| Bulk-FG-2001-1 | USASEALING | 3″ | 1/8″ Thick | Medium diameter, standard services |
| SSI90003304GR150X24 | Lamons | 3″ | 150# | Heat exchangers and high-temp joints |
| FLEXITALLIC 4″ 316SS | FLEXITALLIC | 4″ | CG style | High temperature range, general purpose |
| SSS 9000IR2316GR150X6 | Lamons | 2″ | 150# | Precise alignment in small to mid-size piping |
Bulk-FG-1973-1: Spiral Wound Gasket with Graphite Filler, 1″, 1/8″ Thick
The Bulk-FG-1973-1 is a spiral wound gasket with graphite filler in a compact 1″ size. It is designed for general service where tight sealing and corrosion resistance are required. Best for small-diameter piping or equipment with 1″ flanges, especially in hydrocarbon or chemical processing where graphite-to-metal sealing is beneficial. A limitation to note is that the product’s data emphasizes its manufacturing origin in China, which may influence lead times for some buyers.
Bulk-FG-2001-1: Spiral Wound Gasket, 3″, 1/8″ Thick
The Bulk-FG-2001-1 offers a 3″ spiral wound design with graphite filler and a 1/8″ thickness for medium-diameter flanges. This option suits operations with standard 3″ piping where solid sealing and adaptability to thermal expansion are needed. Best for plants requiring a bulk supply of reliable, cost-effective gaskets. Consider potential sourcing implications given its manufacturer origin and bulk packaging format.
SSI90003304GR150X24 Spiral Wound Gasket – 3″ Pipe, 150#
Lamons’ Sterling Seal SSI90003304GR150X24 is a high-spec gasket featuring 304 stainless steel windings with graphite filler. It is designed for flat and raised face flanges and high-temperature, high-pressure applications. Best for heat exchangers, boilers, and similar equipment where robust corrosion resistance and precise sealing are required. A limitation is that pack quantities and exact dimensions should be verified against ASME B16.20 requirements for critical systems.
FLEXITALLIC 4″ Spiral Wound Gasket, 316SS
This 4″ 316SS gasket from FLEXITALLIC, identified as CGI with a green band and gray stripe, covers a wide temperature range (-320 to 842°F). Suitable for high-temperature and general service on steel and alloy flanges. Best for projects needing a metal-to-graphite seal in mid-to-large diameter piping. The stated material mix suggests compatibility with many aggressive media but may require careful handling for extreme chemical exposures.
SSS 9000IR2316GR150X6 Spiral Wound Gasket, 316SS Inner Ring
Lamons’ SSS 9000IR2316GR150X6 features a 316SS inner ring with flexible graphite filler. It targets ASME B16.20 compatibility and is designed for accurate centering on the flange face, promoting radial strength and limiting compression. Best for precise alignment in smaller pipework (2″ size) and high-temperature scenarios where inner-ring guidance is beneficial. A potential limitation is ensuring proper inner ring seating to avoid misalignment during installation.
SSI90006304GR150X24 Spiral Wound Gasket, 6″ Pipe
Lamons’ SSI90006304GR150X24 uses 304 SS windings with graphite filler and is sized for 6″ pipe at 150# class. It is positioned for reliable performance in larger joint configurations with robust sealing capabilities under high-temperature and high-pressure conditions. Best for reliable sealing in mid-to-large diameter systems, but verify the gasket’s thickness and outer dimensions to ensure proper flange compatibility. Consider potential lead times for bulk orders.
SSS 90008316GR600X6 316L Gasket, 8″ Pipe, 600#
Lamons’ 316L stainless steel spiral wound gasket provides high corrosion resistance for demanding environments. It’s designed for 8″ pipe at 600# class, with clear ASME B16.20 markings and a durable green band/grey stripe. Best for critical steam and high-pressure service in chemical and petrochemical plants. A limitation is the potential for higher material cost compared to lower-alloy options, which should be weighed against long-term sealing performance.
Generic 1″ Flexitallic Spiral Wound Gasket, CG Style
Generic’s 1″ 150# Flexitallic CG-style gasket offers a cost-conscious option for standard flange sealing. Best for facilities seeking a budget-friendly alternative for routine maintenance of small-diameter piping. Limitations include lighter data on material specifics and potential variability in performance versus branded high-end products; confirm exact filler and metallic windings before use.
Buying Guide
- What flange size and class do you require? Match the gasket to your flange standard (e.g., 150#, 300#, 600#) and pipe size for proper sealing.
- What media and temperature will you encounter? Graphite fillers and stainless steel windings suit many aggressive chemicals and high temperatures, but verify compatibility with your process fluids.
- Do you need an inner ring or centering guidance? Inner rings improve alignment on certain sizes and reduce gasket movement during pressurization.
- Are you purchasing in bulk or as needed? Bulk options can lower per-unit costs but require inventory planning and consistent sizing.
- What installation considerations apply? Ensure flange face compatibility (flat vs. raised) and confirm gasket thickness to avoid leaks or bolt overload.
FAQ
- What is a spiral wound gasket? A gaskets with a metal winding and soft filler designed to seal flanged joints across varying temperatures and pressures.
- What material should I choose for graphite filler? Graphite fillers offer good chemical resistance and thermal stability for many applications, especially with stainless steel windings.
- Is an inner ring necessary for all gaskets? Not always, but inner rings can improve centering and reduce extrusion in some high-pressure joints.
- How do I verify compatibility with ASME standards? Check for ASME B16.20 markings and ensure the gasket size matches the flange specification.
- When should I avoid a particular product? Avoid when the flange class or temperature exceeds the gasket’s rated range or when media compatibility is uncertain.
- Can I substitute brands? Substitution is possible if the gasket dimensions, material, and class match the original specification; confirm with the plant engineer.