Overview
This industrial-grade spiral wound gasket is engineered for critical sealing applications in high-pressure and high-temperature piping systems. It is manufactured in strict compliance with the ASME B16.20-2007 standard, ensuring dimensional accuracy and performance reliability for flanged connections. Designed for a nominal pipe size of 12 inches and a 900-pound pressure class, this gasket delivers a robust seal capable of withstanding demanding service conditions, including thermal cycling and system pressure surges. Its construction is specifically intended for controlled indoor environments.
Key Features
ASME B16.20-2007 compliant for guaranteed interchangeability and fit Designed for 900LB class flanges, suitable for pressures up to approximately 2,200 PSI Features a durable 304 stainless steel outer ring for handling and centering
Utilizes a resilient graphite filler wound with metal for superior sealing and recovery Includes a 304 stainless steel inner ring to prevent filler extrusion in the pipe bore
Spiral wound design compensates for flange irregularities and thermal movement Engineered for long-term service life in demanding industrial applications
Specifications
Standard: ASME B16.20-2007 Chemical Base / Filler Material: Graphite Sealant Type: Spiral Wound Gasket Gasket Style: D-Type with Inner and Outer Ring Nominal Pipe Size (NPS): 12 inches Pressure Class: 900LB Outer Ring Material: 304 Stainless Steel Inner Ring Material: 304 Stainless Steel Winding Material: 304 Stainless Steel with Graphite Filler Indoor/Outdoor Use: Indoor Paintable: No Unit: Sold as a single gasket
Applications
High-pressure process piping in chemical and petrochemical plants
Power generation and utility systems
Oil and gas transmission and refining
Industrial heating and steam systems Any flanged connection requiring a reliable, code-compliant seal for 12-inch, 900LB class service








