Overview
This DN400 stainless steel flange gasket is engineered for high-pressure, high-integrity sealing in demanding industrial piping systems. Designed to withstand operating pressures up to 63 PSI, it provides a reliable, leak-tight barrier in critical applications where system failure is not an option. The gasket features a robust D-shaped construction with integrated inner and outer metal rings, ensuring precise alignment on the flange face and preventing gasket blow-out or buckling under high bolt loads. Its corrosion-resistant materials make it suitable for a wide range of aggressive media and high-temperature environments.
Key Features
D-shaped design with integrated inner and outer rings for superior alignment and stability Constructed with a 304 stainless steel inner and outer ring for structural integrity Features a wound sealing element made of 316L stainless steel with a graphite filler
Engineered to prevent creep relaxation and maintain seal under high bolt loads Corrosion-resistant construction suitable for challenging chemical and thermal services
Conforms to recognized industry standards for dimensional consistency and performance Prevents buckling and extrusion in high-pressure flange connections
Specifications
Material: 304 & 316L Stainless Steel with Graphite Filler Nominal Size: DN400 (approximately 15.75 inches) Pressure Rating: PN63 (63 PSI) Design: D-Type with Inner and Outer Metal Rings Construction: Metal Wound Standards: Manufactured to Comply with Industry Standards Connection Type: Flange Gasket Pack Quantity: 1 Unit
Applications
High-pressure process piping in chemical and petrochemical plants
Power generation and utility steam systems
Oil and gas transmission and refining pipelines
Industrial heating and cooling systems requiring reliable seals Any flange connection requiring a robust, metal-reinforced gasket for 63 PSI service








