Overview
This D-Ring Style Metal Wound Gasket is a precision sealing component engineered for high-pressure, high-temperature flange connections in demanding industrial piping systems. It is manufactured to the exacting requirements of the HG/T20610-2009 standard, ensuring dimensional consistency and performance reliability. The gasket's robust construction is designed to create a superior, leak-free seal in applications involving steam, hydrocarbons, chemicals, and other aggressive media, making it a critical part for maintenance, repair, and operations (MRO) and original equipment manufacturing (OEM) applications.
Key Features
Engineered for a pressure rating of PN25, equivalent to approximately 363 PSI Designed for thermal stability in continuous service up to 1500°F Features a D-shaped cross-section with integrated inner and outer containment rings for optimal sealing force distribution Constructed with a corrosion-resistant 304 stainless steel inner ring Utilizes 316L stainless steel windings for enhanced chemical resistance
Incorporates a flexible graphite filler for excellent conformability and seal integrity
Prevents flange face damage and provides radial stability during installation
Sold in a convenient package of six for project efficiency and inventory management
Specifications
Material Construction: 304 Stainless Steel Inner Ring, 316L Stainless Steel Windings, Graphite Filler Nominal Size: DN150 (6.69 inches) Pressure Class: PN25 (363 PSI) Design Standard: HG/T20610-2009 Profile: D-Ring Style with Inner and Outer Guide Rings Temperature Rating: Up to 1500°F continuous service Package Quantity: 6
Applications
Sealing high-pressure steam lines and boiler feed systems
Flange connections in refinery and petrochemical processing pipelines
Chemical processing equipment handling corrosive fluids Power generation and co-generation plant piping High-temperature heat exchanger and vessel manways General industrial piping maintenance and repair where a robust, reliable seal is required
