Overview
This industrial-grade spiral wound gasket is engineered for high-pressure, high-temperature flange connections in demanding process environments. It is manufactured to the exacting dimensions and material specifications of the ASME B16.20-2007 standard, ensuring a precise fit and reliable seal for critical piping systems. Designed for a 20-inch Nominal Pipe Size (NPS) flange with a 900-pound pressure class rating, this gasket provides a robust sealing solution for the most challenging applications where failure is not an option.
Key Features
Constructed with a spiral-wound core of 316L stainless steel and PTFE filler Features a solid 316L stainless steel outer centering ring
The outer ring ensures precise alignment during flange assembly The outer ring prevents over-compression of the wound sealing element
PTFE filler offers superior chemical resistance against a wide range of corrosive media 316L stainless steel winding provides excellent resilience and recovery under thermal cycling Manufactured to strict ASME B16.20-2007 dimensional standards for guaranteed compatibility
Specifications
Standard: ASME B16.20-2007 Sealant Type: Spiral Wound Gasket Nominal Pipe Size (NPS): 20 inches Pressure Class: 900 LB Winding Material: 316L Stainless Steel Filler Material: PTFE (Polytetrafluoroethylene) Outer Ring Material: 316L Stainless Steel Chemical Base: PTFE Indoor/Outdoor Use: Industrial Paintable: No Unit: Each (Sold individually)
Applications
This gasket is suitable for sealing flanged joints in high-integrity piping systems across numerous industries. Its combination of 316L stainless steel and PTFE makes it ideal for services involving corrosive chemicals, high-purity processes, and demanding temperature conditions. Typical applications include chemical processing, petrochemical and refinery operations, pharmaceutical manufacturing, power generation, and oil and gas production. It is specifically intended for use on raised face and flat face flanges within its specified pressure class.








