Overview
This industrial-grade spiral wound gasket is engineered for high-performance sealing in critical piping and pressure vessel applications. Designed to meet the rigorous HG/T 20631-2009 standard, it provides a dependable, leak-tight seal for 12-inch nominal pipe size flanges rated for 300LB pressure classes. The gasket's robust construction combines the strength of metal with the sealing properties of a flexible filler, making it a preferred solution for challenging service conditions across various process industries.
Key Features
Constructed with corrosion-resistant 316L stainless steel windings Features a resilient, high-purity graphite filler for superior conformability
Integral internal centering ring ensures precise alignment on the flange
Provides excellent resistance to extreme temperatures and thermal cycling
Seals effectively against a broad spectrum of corrosive media and high pressures
Suitable for both indoor and outdoor installation environments
Specifications
Nominal Pipe Size: 12 inches Pressure Class: 300LB Construction: 316L Stainless Steel Windings with Graphite Filler Design Standard: HG/T 20631-2009 Gasket Type: Spiral Wound with Internal Centering Ring Chemical Base: Graphite Sealant Type: Gasket Indoor/Outdoor Use: Both Paintable: No Package Quantity: 2 gaskets
Applications
Sealing flanges in chemical and petrochemical processing systems High-temperature and high-pressure steam lines
Oil and gas pipeline connections and refinery equipment
Power generation and boiler feed systems
Marine and offshore platform piping General industrial process piping requiring reliable, long-term sealing solutions
