Overview
This 300LB pressure-rated metal spiral wound gasket is engineered for demanding industrial piping and flange connections. It conforms to the HG/T 20631-2009 standard, ensuring dimensional accuracy and performance for specific flange configurations. The gasket features a resilient C-shaped wound construction with an integral outer centering ring, which provides ease of installation and prevents misalignment on DN200 (approximately 8-inch) flanges. It is designed for reliable sealing in high-pressure, high-temperature, and corrosive service environments common in chemical processing, power generation, and oil and gas applications.
Key Features
Pressure rating of 300 pounds per square inch for robust performance C-shaped wound design with an outer centering ring for alignment and handling Sealing filler composed of PTFE (Polytetrafluoroethylene) for broad chemical resistance Inner and outer windings constructed from 316L stainless steel for superior corrosion resistance
Suitable for both indoor and outdoor use in harsh conditions Conforms to the HG/T 20631-2009 industry standard for dimensional compliance
Specifications
Standard: HG Nominal Pipe Size: DN200 (Approximately 8 inches) Pressure Class: 300 LB Construction: Spiral Wound, C-Type with Outer Ring Filler Material: Polytetrafluoroethylene (PTFE) Winding Material: 316L Stainless Steel Indoor/Outdoor Use: Both Paintable: No Package Quantity: 2 gaskets
Applications
Sealing flanges in chemical and petrochemical processing systems High-pressure piping connections in power generation facilities Pump, valve, and heat exchanger connections in oil and gas operations General industrial piping requiring corrosion-resistant sealing solutions
