Overview
The DN100 300LB Metal Spiral Wound Gasket is a precision sealing component engineered for high-integrity flange connections in demanding industrial piping systems. Designed to conform to established industry dimensional standards, this gasket provides a reliable, leak-tight seal in applications involving elevated pressures and temperatures. Its robust spiral wound construction combines the strength of metal with the compressibility of a soft filler, creating an effective seal that accommodates flange surface irregularities and system vibrations. This unit is supplied individually and is ideal for maintenance, repair, and installation projects requiring a 4-inch nominal pipe size connection.
Key Features
Engineered for high-pressure service up to 300LB class, approximately 740 PSI at 100°F. Durable spiral wound construction with a V-shaped metal winding for superior resilience. Features a carbon steel (CRS) outer centering ring for easy alignment and installation. Utilizes a 304 stainless steel inner ring for corrosion resistance on the process side. Resilient graphite filler provides excellent thermal conductivity and temperature tolerance. Conforms to standard dimensions for reliable fit and performance in standard flange faces.
Specifications
Material Construction: Carbon Steel Outer Ring, 304 Stainless Steel Inner Ring, Graphite Filler, 304 Stainless Steel Winding Nominal Size: DN100 (Approximately 4 inches) Pressure Class: 300LB Design Standard: Meets Industry Standards for Spiral Wound Gaskets Connection Type: Flange Package Quantity: 1 unit
Applications
High-pressure process piping in chemical and petrochemical plants. Steam lines and utility systems in power generation facilities. Heating and cooling circuits in HVAC and industrial refrigeration. Pipeline and distribution systems for oil and gas. General industrial maintenance for pumps, valves, and vessel connections.
Note
This product is packaged and sold as a single unit. For standard procurement, a typical pack size is 12 units. Always verify gasket material compatibility with specific process media, temperatures, and pressures prior to installation. Ensure flange faces are clean, undamaged, and properly aligned.








