Overview
This industrial spiral wound gasket is engineered for high-integrity sealing in demanding piping systems. Manufactured in strict compliance with the ASME B16.20-2007 standard, it is designed for nominal 20-inch pipe size (NPS 20) flanges with a 150LB pressure class rating. The gasket features a robust construction with a 316L stainless steel outer ring for centering and mechanical protection, combined with a PTFE (polytetrafluoroethylene)-filled metal winding core. This combination delivers a reliable, leak-tight seal capable of withstanding significant thermal cycling and pressure fluctuations, making it a critical component for system safety and efficiency.
Key Features
ASME B16.20-2007 compliant construction for guaranteed dimensional accuracy and performance 316L stainless steel outer ring provides centering on the flange and protects the winding PTFE-filled spiral winding offers excellent chemical resistance and sealing properties Designed for pressure ratings up to 275 PSI at a service temperature of 100°F
Suitable for applications involving thermal cycling and variable pressure conditions
Supplied as a matched pair for consistent sealing performance across critical connections
Specifications
Standard: ASME B16.20-2007 Chemical Base: PTFE Sealant Type: Spiral Wound Gasket Nominal Pipe Size: 20 inches Pressure Class: 150LB Outer Ring Material: 316L Stainless Steel Winding Material: 316L Stainless Steel filled with PTFE Indoor/Outdoor Use: Indoor only Paintable: No Package Quantity: 2 gaskets
Applications
This gasket is specified for use in a wide range of industrial processing and utility piping systems. Typical applications include chemical processing plants, pharmaceutical manufacturing, food and beverage production, and oil and gas refineries. It is ideal for sealing flanges in systems conveying aggressive chemicals, solvents, or high-purity media where corrosion resistance and a contaminant-free seal are paramount. Always ensure the gasket materials are compatible with the specific process media, temperature, and pressure conditions of your application.
