Overview
This industrial-grade spiral wound gasket is engineered for high-pressure, high-integrity sealing in demanding process piping and vessel applications. It conforms to the HG/T 20631-2009 standard, ensuring dimensional compatibility and performance for a nominal pipe size of 2 inches under a 900-pound pressure class rating. The gasket features a robust C-shaped cross-section with an integrated outer centering ring, designed for precise flange alignment and enhanced resistance to crushing during bolt-up. Its construction provides a reliable seal for both indoor and outdoor service across a spectrum of industrial environments.
Key Features
C-shaped winding profile with an integral outer centering ring Rated for high-pressure applications up to 900 PSI
Winding is filled with PTFE for broad chemical resistance Inner and outer reinforcing rings constructed from 316L stainless steel Centering ring ensures proper installation and prevents over-compression Suitable for use on standard raised face and male-female flanges
Specifications
Standard: HG/T 20631-2009 Nominal Pipe Size: 2 Inch Pressure Class: 900 LB Winding Material: PTFE (Polytetrafluoroethylene) Filled Inner Ring Material: 316L Stainless Steel Outer Ring Material: 316L Stainless Steel Gasket Style: Spiral Wound with Outer Ring Indoor/Outdoor Use: Both Paintable: No Package Quantity: 20
Applications
Sealing high-pressure flanges in chemical and petrochemical processing
Connections in power generation and utilities piping systems
Refinery and hydrocarbon processing equipment Industrial heating, ventilation, and high-pressure plumbing General industrial maintenance on ANSI/ASME standard flanges
