Overview
This industrial-grade spiral wound gasket is manufactured to the exacting requirements of the ASME B16.20-2007 standard, ensuring reliable performance in high-pressure and high-temperature piping systems. Designed for a nominal pipe size of 4 inches with a 600-pound pressure class rating, it provides a robust metal-to-metal seal for standard raised face flanges. The gasket's construction combines a durable outer centering ring with a resilient wound sealing element, engineered to maintain integrity under cyclic loading and thermal stress. It is intended for indoor applications where consistent, leak-free containment is critical.
Key Features
ASME B16.20-2007 compliant construction for guaranteed dimensional accuracy and performance. 600LB pressure class rating suitable for demanding high-pressure service. 316L stainless steel outer ring provides centering on the flange and protects the wound filler. Spiral wound sealing element made from alternating layers of 316L stainless steel and flexible graphite filler. The graphite filler offers excellent thermal conductivity and chemical resistance across a wide range of media. Prevents flange face damage by containing the wound element within the outer ring. Individually packaged in sets to maintain condition and simplify inventory management.
Specifications
Standard: ASME B16.20-2007 Sealant Type: Spiral Wound Gasket Chemical Base Filler: Flexible Graphite Outer Ring Material: 316L Stainless Steel Winding Material: 316L Stainless Steel with Graphite Filler Nominal Pipe Size: 4 inches Pressure Class: 600LB Intended Use: Indoor Paintable: No Package Quantity: 6 gaskets
Applications
High-pressure process piping in chemical and petrochemical plants. Power generation systems, including steam and turbine lines. Oil and gas transmission and refining infrastructure. Industrial heating and cooling systems with thermal cycling. General industrial plant maintenance and flange connections requiring ASME compliance.








