Overview
The D-Type Spiral Wound Gasket is a precision sealing component designed for high-integrity flange connections in critical process piping systems. Engineered to handle extreme pressure and temperature fluctuations, this gasket creates a reliable metal-to-metal seal that prevents leaks in demanding industrial environments, including chemical processing, power generation, and oil and gas applications. Its robust construction ensures performance under continuous cycling and harsh service conditions.
Key Features
D-type design with controlled density for optimal seating stress. Constructed with corrosion-resistant 316L stainless steel inner and outer rings. Spiral wound core of 316L stainless steel wire filled with flexible graphite. Engineered for high-pressure sealing performance up to 1,440 PSI. Provides excellent resistance to thermal shock and creep relaxation. Conforms to recognized industry dimensional and material standards. Individually packaged in a convenient 25-piece carton for inventory control.
Specifications
Material: 316L Stainless Steel (Rings & Winding), Graphite Filler Nominal Pipe Size: 0.79 inch Pressure Rating: PN 100 (1,440 PSI) Gasket Type: D-Type Spiral Wound with Inner and Outer Rings Construction: 316L / Graphite / 316L Standards: Manufactured to Industry Standards Pack Quantity: 25
Applications
Sealing high-pressure flange connections in process piping. Chemical and petrochemical plant pipework. Power generation and utility steam systems. Refinery and offshore oil and gas installations. Any application requiring a resilient, high-performance seal for ANSI class flanges.








