Overview
This D-type metal wound gasket is engineered for critical sealing applications in high-pressure piping systems. Manufactured in strict compliance with the HG/T 20631-2009 standard, it is designed to provide a reliable, leak-tight seal for industrial process lines, heat exchangers, and pressure vessels. The gasket features a robust construction with both inner and outer reinforcing rings, which offer superior handling stability and prevent over-compression during flange bolt-up, ensuring optimal performance and longevity in demanding service conditions.
Key Features
D-type construction with integral inner and outer reinforcing rings for enhanced stability and seating Winding core composed of 304 stainless steel for structural integrity and resilience PTFE (Polytetrafluoroethylene) filler material providing excellent chemical resistance Specifically designed for ASME 300LB pressure class flanges Conforms to standardized dimensions for DN500 nominal pipe size, ensuring interchangeability
Suitable for use with standard carbon steel flanges
Specifications
Standard: HG/T 20631-2009 Nominal Pipe Size: DN500 Pressure Class: 300LB Construction Type: D-Type (with inner and outer rings) Winding Material: 304 Stainless Steel Filler Material: PTFE Reinforcing Ring Material: 304 Stainless Steel Primary Flange Compatibility: Steel Pack Quantity: 1 unit
Applications
This gasket is ideal for sealing applications in chemical and petrochemical processing plants, power generation facilities, and oil and gas refineries. Its 304/PTFE/304 material combination makes it suitable for a broad spectrum of corrosive fluids and gases where chemical resistance is paramount. Typical uses include sealing pump and valve flanges, reactor connections, and pipeline joints in systems requiring a dependable seal under significant pressure and temperature variations.
