Overview
This spiral wound gasket is engineered for high-performance sealing in critical industrial piping systems. Designed to meet the rigorous HG/T 20631-2009 standard, it provides a dependable, pressure-rated seal for flanged connections in both indoor and outdoor service environments. The gasket's construction combines the mechanical strength of metal with the sealing resilience of a non-metallic filler, creating an optimal seal that accommodates system pressure fluctuations and flange face irregularities.
Key Features
Engineered to the HG/T 20631-2009 industry standard for dimensional consistency and performance. Features a resilient PTFE (Polytetrafluoroethylene) filler for exceptional chemical resistance and a tight seal. Reinforced with inner and outer containment rings made from 304 stainless steel for structural stability. The inner ring prevents filler extrusion into the pipeline, while the outer ring centers the gasket and protects the wound layers. Suitable for a wide range of industrial applications requiring a reliable, pressure-rated seal.
Specifications
Nominal Pipe Size: 1 inch Pressure Class: 300LB Construction: Spiral wound with inner and outer ring Filler Material: PTFE Windings Material: 304 Stainless Steel Containment Rings: 304 Stainless Steel Standards Compliance: HG/T 20631-2009 Indoor/Outdoor Use: Suitable for Both Paintable: No Package Quantity: 100 pieces
Applications
Sealing flanged connections in chemical and petrochemical processing pipelines. Use in oil and gas production, transmission, and refining systems. General industrial service for fluids, steam, and gases requiring chemical resistance. Ideal for applications involving corrosive media where PTFE compatibility is essential. Suitable for pumps, valves, heat exchangers, and other pressure vessel connections.








