Overview
This industrial-grade spiral wound gasket is engineered for high-integrity sealing in critical flange connections. Manufactured in strict compliance with the HG/T 20610-2009 standard, it is designed to handle a broad spectrum of operating pressures and aggressive media. The 4-inch nominal size makes it suitable for a wide range of pipeline and vessel applications where leak prevention is paramount. Its construction prioritizes long-term reliability and chemical compatibility in demanding processing environments.
Key Features
Engineered to the HG/T 20610-2009 standard for dimensional and performance consistency. Robust spiral wound design with a 316L stainless steel outer winding for structural integrity. PTFE (polytetrafluoroethylene) filler material offers superior chemical resistance. Integrated inner ring provides gasket stability during installation and contains the filler under high-pressure or vacuum conditions. Rated for a pressure class range from PN10 up to PN63 for versatile application. Suitable for both indoor and outdoor service applications.
Specifications
Standard: HG Nominal Size: 4 inches Construction: Spiral Wound Metal Windings: 316L Stainless Steel Filler Material: Polytetrafluoroethylene (PTFE) Inner Ring: 316L Stainless Steel Pressure Class Range: PN10, PN16, PN25, PN40, PN63 Sealant Type: Gasket Indoor/Outdoor Use: Both Paintable: No Package Quantity: 10
Applications
Sealing flanges in chemical and petrochemical processing systems. Pipeline connections in power generation and utilities. Vessel manways and heat exchanger channels in refining applications. General industrial piping for aggressive fluids requiring a PTFE barrier. Use in systems handling corrosive media where 316L stainless steel and PTFE compatibility is essential.
