Overview
This industrial-grade spiral wound gasket is engineered for reliable sealing in high-pressure piping systems. Designed to the HG/T 20631-2009 standard, it is specified for a nominal pipe size of 1 inch with a pressure class rating of 300 lbs. The gasket features a robust construction with a 316L stainless steel winding and a polytetrafluoroethylene (PTFE) filler, delivering superior chemical resistance and thermal stability. An integral outer containment ring provides critical guidance during installation, prevents over-compression, and ensures uniform seating within the flange.
Key Features
Manufactured to the HG/T 20631-2009 industry standard Rated for high-pressure applications up to 300 lbs Core construction of 316L stainless steel winding for strength and corrosion resistance
PTFE filler material for broad chemical compatibility and low friction
Outer containment ring for easy alignment and installation control
Suitable for both indoor and outdoor service environments Provides a reliable seal in flanged connections for pipes, valves, and pumps
Specifications
Standard: HG Nominal Pipe Size: 1 inch Pressure Class: 300 lbs Winding Material: 316L Stainless Steel Filler Material: Polytetrafluoroethylene (PTFE) Gasket Type: Spiral Wound with Outer Ring Indoor/Outdoor Use: Both Paintable: No Pack Quantity: 25
Applications
This gasket is ideal for creating secure, leak-free seals in a wide array of demanding industrial settings. Its material composition makes it suitable for chemical processing and hydrocarbon service where corrosion resistance is paramount. Common applications include high-pressure flanged connections in process piping systems, pump and valve manifolds, compressor stations, and utility lines handling aggressive media.








