ASME B16.20 Spiral Wound Gasket, 20" NPS 300LB, 304/316L & Graphite
Overview
This industrial-grade spiral wound gasket is manufactured to the exacting requirements of the ASME B16.20-2007 standard, ensuring reliable performance in critical high-pressure and high-temperature piping systems. Designed for a nominal pipe size of 20 inches with a 300-pound pressure class rating, this gasket provides a robust and resilient seal for flanged connections. Its precision-engineered construction combines a compressible graphite filler with durable metal windings, creating a seal that accommodates flange irregularities and maintains integrity under thermal cycling and system pressure fluctuations.
Key Features
ASME B16.20-2007 compliant construction for guaranteed dimensional accuracy and performance. Dual-ring design featuring a 304/316L stainless steel outer ring and a 316L stainless steel inner ring for superior compression control and bolt load distribution. Resilient graphite filler provides excellent sealing characteristics across a wide temperature range. The inner ring prevents gasket blow-out and protects against media erosion in the pipe bore. Engineered for reliable performance in demanding, high-pressure industrial environments.
Specifications
Standards: ASME B16.20-2007 Chemical Base: Graphite Sealant Type: Spiral Wound Gasket Nominal Pipe Size (NPS): 20 inches Pressure Class: 300LB Outer Ring Material: 304/316L Stainless Steel Inner Ring Material: 316L Stainless Steel Filler Material: Graphite Indoor/Outdoor Use: Indoor Paintable: No Pack Size: 1 unit
Applications
This gasket is suitable for sealing flanged joints in a wide range of industrial piping systems. Typical applications include process piping in chemical and petrochemical plants, oil and gas transmission lines, power generation facilities, and high-pressure steam systems. It is specifically intended for use where system specifications require ASME B16.20 compliant sealing solutions for NPS 20 inch, Class 300 flanges.
