Overview
This industrial-grade spiral wound gasket is engineered for high-integrity sealing in demanding high-pressure and high-temperature piping systems. It is manufactured to the HG/T 20631-2009 standard, ensuring dimensional consistency and material quality for reliable performance. The gasket is specifically designed for a nominal pipe size of 1/2 inch (DN15) and is rated for 600 LB flange service, making it suitable for a wide range of critical process applications involving thermal cycling and corrosive media.
Key Features
Constructed with a spiral wound design for superior resilience and sealing force. Features a winding of 316L stainless steel for excellent corrosion resistance. Utilizes a flexible graphite filler for effective sealing across a wide temperature range. The outer retaining ring centers the gasket for easy installation and prevents over-compression. Conforms to industry-standard specifications for interchangeability and reliability. Suitable for both indoor and outdoor service environments.
Specifications
Standard: HG/T 20631-2009 Sealant Type: Spiral Wound Gasket with Outer Ring Nominal Size: 1/2 Inch (DN15) Pressure Class: 600 LB Winding Metal: 316L Stainless Steel Filler Material: Flexible Graphite Outer Ring Material: 316L Stainless Steel Chemical Base: Graphite Indoor/Outdoor Use: Both Paintable: No Package Quantity: 50
Applications
High-pressure process piping in chemical and petrochemical plants. Refinery and power generation flanged connections. Heat exchanger and boiler applications requiring thermal cycling resistance. General industrial service on pumps, valves, and vessels with ANSI standard flanges. Systems handling steam, hydrocarbons, and various corrosive fluids.








