Overview
This industrial-grade spiral wound gasket is manufactured to the stringent HG/T20631-2009 standard, ensuring compatibility and performance in critical piping systems. Designed for DN500 nominal bore connections, it provides a robust and reliable seal for high-pressure applications rated for 300LB and 600LB classes. The gasket's engineered construction combines the structural strength of metal with the sealing properties of a non-metallic filler, creating an effective barrier against leaks in challenging service environments involving variable temperatures, pressures, and medium aggressiveness.
Key Features
Engineered to HG/T20631-2009 industry standard for assured dimensional accuracy and performance. Constructed with a 304 stainless steel winding for excellent corrosion resistance and mechanical strength. Fluoropolymer filler material offers strong chemical resistance and enhanced sealing elasticity. Suitable for high-pressure applications in both 300LB and 600LB flange classes. Designed for reliable performance in both indoor and outdoor installation environments. Precise dimensions ensure a proper fit and seal in DN500 flange assemblies.
Specifications
Standard: HG/T20631-2009 Nominal Size: DN500 Inner Diameter: Approximately 21.0 inches Outer Diameter: Approximately 23.0 inches Thickness: 0.18 inches Winding Metal: 304 Stainless Steel Filler Material: Fluoropolymer Pressure Rating: 300LB / 600LB Chemical Base: Fluoropolymer Sealant Type: Spiral Wound Gasket Use: Indoor and Outdoor Paintable: No Pack Quantity: 1 unit
Applications
This gasket is specified for sealing flange connections in a wide range of industrial processing systems. Typical applications include chemical and petrochemical processing plants, oil and gas pipelines, power generation facilities, and heavy industrial manufacturing. It is suitable for sealing water, steam, oil, gas, and a variety of chemical media within its temperature and pressure limits, making it a versatile component for maintenance and new construction projects.
