Overview
This 316L stainless steel flange gasket is engineered for critical sealing in high-pressure and high-temperature piping systems. Its D-shaped, spiral-wound metal construction incorporates inner and outer containment rings, providing exceptional mechanical strength and resistance to gasket blowout. Designed to meet rigorous industry standards, including HG/T20610-2009, it ensures reliable performance in demanding industrial applications involving corrosive media, thermal cycling, and pressures up to PN40.
Key Features
Constructed entirely from corrosion-resistant 316L stainless steel for the winding and rings D-shaped design with integrated inner and outer containment rings for maximum stability Graphite filler material provides an effective seal across a wide temperature range Rated for high-pressure service up to PN40, equivalent to approximately 580 PSI Manufactured to conform with HG/T20610-2009 specifications for dimensional and material integrity Nominal diameter of 6.69 inches is compatible with standard DN150 flange connections
Specifications
Material: 316L Stainless Steel (winding, inner ring, outer ring) Filler Material: Flexible Graphite Nominal Size: DN150 Actual Nominal Diameter: 6.69 inches Pressure Rating: PN40 (580 PSI) Design: Spiral Wound, D-Shape with Inner and Outer Rings Industry Standard: HG/T20610-2009 Package Quantity: 5 pieces
Applications
Sealing connections in chemical and petrochemical processing pipelines High-pressure steam lines and power generation systems Oil and gas transmission and refining operations Industrial heating and cooling systems requiring thermal cycling resistance General process industry flanged connections where corrosion resistance is paramount
