Overview
This 316L stainless steel D-ring style spiral wound gasket is engineered for high-integrity sealing in demanding high-pressure and high-temperature flange connections. Designed to meet the rigorous GB/T4622.2-2003 standard, it is constructed for a nominal pipe size of DN65, corresponding to a 2.5-inch flange. The gasket's robust design incorporates inner and outer containment rings, providing stability during installation and preventing over-compression. It is an essential component for maintenance, repair, and operations (MRO) in industries where leak prevention is critical.
Key Features
Manufactured from corrosion-resistant 316L stainless steel windings
Features a flexible graphite filler for an exceptional seal D-ring design with inner and outer containment rings for installation stability Rated for pressure service up to 900 PSI (PN63)
Suitable for extreme temperature cycling and corrosive media Conforms to standardized dimensions for reliable flange fit-up Sold in a convenient 10-piece package for project efficiency
Specifications
Material: 316L Stainless Steel windings and rings with graphite filler Size: DN65 (for 2.5-inch flanges) Pressure Rating: PN63 (900 PSI) Design Standard: GB/T4622.2-2003 Style: D-type with inner and outer rings Connection Type: Flange Gasket Package Quantity: 10 pieces
Applications
High-pressure piping systems in chemical and petrochemical processing
Power generation and steam line connections
Oil and gas pipeline flanges and valve bonnets
Heavy industrial machinery requiring sealed fluid connections
Refinery and offshore platform maintenance Any application requiring a durable, metallic, spiral-wound gasket for ANSI Class 600 flanges
