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This Spiral Wound Gasket 4"150# with CS Outer Ring is engineered for optimal sealing performance in demanding industrial applications involving high temperatures and pressures. Designed with a V-shaped metal strip interleaved with a resilient filler material wound spirally, this gasket provides excellent recovery and strength to maintain tight sealing under fluctuating operating conditions. The carbon steel (CS) outer ring ensures enhanced centering, stability, and protection against flange damage during installation, making it ideal for use in pipeline flanges, pressure vessels, and heat exchangers in petrochemical, power generation, and refining industries. The 4"150# specification indicates compatibility with standard 150-pound ANSI flanges of 4-inch nominal pipe size, ensuring precise fit and maximum sealing efficiency under rated pressure classes. This gasket's robust construction enables it to resist corrosive agents and thermal cycling, minimizing leakage risks and extending maintenance intervals for industrial equipment.
Key Features
| Features | Description |
|---|---|
| Size | 4 inches nominal pipe size |
| Pressure Rating | 150 pound ANSI Class |
| Outer Ring Material | Carbon Steel (CS) |
| Seal Construction | Spiral wound with V-shaped metal strip and filler |
| Temperature and Pressure Resistance | High temperature and high pressure capability |
| Application Areas | Ideal for pipelines, pressure vessels, heat exchangers |
| Corrosion Resistance | Resists corrosive environments |
| Installation Benefit | Outer ring protects flange and assists centering |
| Industry Usage | Used extensively in petrochemical, power generation, refinery sectors |
| Attributes | Description |
|---|---|
| Nominal Size | 4 inches |
| Pressure Class | 150# (150 lb ANSI) |
| Outer Ring Material | Carbon Steel (CS) |
| Inner Materials | V-shaped metal winding with filler material |
| Gasket Type | Spiral Wound Gasket (SWG) |
| Suitable Flange Type | Raised face ANSI flanges |
| Operating Temperature Range | Up to 550°C (depends on filler material) |
| Application Environment | High pressure, high temperature, corrosive |
*Disclaimer: The above description has been AI-generated and has not been audited or verified for accuracy. It is recommended to verify product details independently before making any purchasing decisions.
The carbon steel outer ring enhances the centering of the gasket on the flange, protects flange faces from damage during installation, and helps maintain uniform compression to ensure reliable sealing under high pressure.
Yes, with the appropriate filler material selected, the spiral wound construction combined with the carbon steel outer ring offers strong resistance to corrosion, making it suitable for many chemical processing applications.
This gasket is specifically designed to fit 4-inch nominal pipe size and 150 lb ANSI flange standards for optimal sealing and mechanical integrity.
The gasket uses a V-shaped metal strip—commonly stainless steel or carbon steel—wound with a softer filler material such as graphite or PTFE to create resilient sealing layers.
Depending on the filler material used, it can typically handle temperatures up to about 550°C (1022°F), suitable for high-temperature industrial processes.
A Spiral Wound Gasket (SWG) is a type of industrial gasket that is widely used in high-temperature, high-pressure, and corrosive environments. It consists of a V-shaped metal strip and a softer filler material that is wound in a spiral fashion to create a resilient sealing surface.
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Ahmedabad , India
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