Overview
This industrial-grade spiral wound gasket is engineered for critical sealing applications on large-diameter piping systems. Designed specifically for DN1250 flanges rated to 300 LB, it provides a robust and reliable seal capable of withstanding significant pressure, thermal cycling, and mechanical stress. The gasket's construction utilizes alternating layers of metal and compressible filler, creating a resilient seal that maintains integrity under fluctuating conditions. It is manufactured in strict compliance with the HG/T20631-2009 standard, ensuring dimensional accuracy and material quality for consistent performance in demanding industrial environments.
Key Features
Engineered for high-pressure service on 300 LB flanges Constructed with corrosion-resistant 316 stainless steel windings
Features a flexible graphite filler for excellent thermal conductivity and sealability
Designed to accommodate thermal expansion and pressure cycling Conforms to industry-standard dimensions for reliable flange fit and performance Supplied as a single, ready-to-install unit
Specifications
Material: 316 Stainless Steel and Graphite Nominal Size: DN1250 Pressure Class: 300 LB Standards: HG/T20631-2009 Inner Diameter: Approximately 5.07 inches Outer Diameter: Approximately 6.31 inches Thickness: 0.126 inches Construction Type: Spiral Wound with Inner Ring (Type B) Quantity: 1 piece per pack
Applications
Sealing large-diameter flanges in chemical and petrochemical processing High-pressure steam lines and power generation systems
Oil and gas transmission and refining operations Heavy industrial piping requiring reliable, high-integrity seals Systems involving thermal cycling and variable pressure conditions
