Overview
This industrial spiral wound gasket is engineered for high-performance sealing in demanding piping and vessel flange connections. It is manufactured in strict compliance with the HG/T 20631-2009 standard, ensuring dimensional accuracy and material integrity for 300LB pressure class service. The design combines the mechanical strength of metal with the superior chemical inertness of a polytetrafluoroethylene filler, creating a resilient seal capable of handling thermal cycling and variable pressures. It is suitable for use in a broad spectrum of chemical processing, petrochemical, and general industrial applications.
Key Features
Manufactured to HG/T 20631-2009 standard for guaranteed interchangeability Rated for 300LB pressure class service C2230 winding style with a polytetrafluoroethylene (PTFE) filler for universal chemical resistance 304 stainless steel outer ring provides centering and compression control
Spiral wound construction offers excellent resilience and recovery
Suitable for both indoor and outdoor installation environments
Specifications
Standard: HG/T 20631-2009 Nominal Pipe Size: 8 Inch Pressure Class: 300LB Winding Style: C2230 Filler Material: Polytetrafluoroethylene (PTFE) Outer Ring Material: 304 Stainless Steel Sealant Type: Spiral Wound Gasket Chemical Base: Polytetrafluoroethylene Indoor/Outdoor Use: Both Paintable: No Package Quantity: 2
Applications
Sealing flanges in chemical processing and pharmaceutical systems
Petrochemical and refinery piping connections General industrial plumbing and high-pressure steam service
Applications requiring resistance to a wide range of corrosive media Vessel manways and heat exchanger flanges
