Overview
This industrial-grade spiral wound gasket is engineered for high-pressure sealing in critical pipeline, valve, and pump flange connections. Manufactured to stringent HG standards, it is designed to deliver reliable, leak-free performance in demanding chemical and process environments. The D-type construction incorporates both inner and outer reinforcing rings, which provide exceptional stability and prevent gasket blow-out under fluctuating pressures and temperatures. This gasket is suitable for both indoor and outdoor applications, offering a robust sealing solution for maintenance and new assembly projects.
Key Features
D-type design with integral inner and outer containment rings Winding constructed from 316L stainless steel for corrosion resistance Filler material of pure Polytetrafluoroethylene (PTFE) for broad chemical compatibility
Engineered for superior seating and flange load distribution
Provides reliable sealing under thermal cycling and vibration
Suitable for a wide range of industrial fluids and gases
Specifications
Standard: HG/T20631-2009 Nominal Pipe Size: 2 inches Pressure Class: 300 PSI Style: D (with inner and outer rings) Windings: 316L Stainless Steel Filler Material: Polytetrafluoroethylene (PTFE) Chemical Base: Polytetrafluoroethylene Sealant Type: Spiral Wound Gasket Indoor/Outdoor Use: Both Paintable: No Pack Quantity: 12
Applications
Sealing flanges in chemical processing pipelines High-pressure valve bonnets and pump housings
Heat exchanger and reactor connections
Utility and steam line systems Refinery and petrochemical plant maintenance
