Overview
This 1/2-inch nominal diameter spiral wound gasket is engineered for high-pressure, high-temperature sealing in critical flange connections. Its robust, spiral-wound construction combines the strength of metal with the conformability of a soft filler to create a reliable seal that accommodates flange rotation and surface imperfections. Manufactured to recognized industry standards, this gasket is designed for indoor use in systems handling a wide range of industrial media, from steam and hydrocarbons to various chemicals.
Key Features
Engineered for high-pressure service up to 740 PSI (PN40) Construction features 316 stainless steel for both the inner and outer centering rings Spiral windings are formed from 316 stainless steel for structural integrity Filler material is flexible, high-purity graphite for superior conformability and thermal resistance The metal-wound design provides resilience and recovery under bolt load
Suitable for sealing against a broad spectrum of industrial fluids and gases
Specifications
Nominal Pipe Size: 1/2 Inch Pressure Class: PN40 (740 PSI) Construction Standard: HG/T20610-2009 Gasket Type: Spiral Wound with Inner and Outer Rings Outer Ring Material: 316 Stainless Steel Inner Ring Material: 316 Stainless Steel Windings Material: 316 Stainless Steel Filler Material: Flexible Graphite Overall Outer Diameter: 2.40 inches Overall Inner Diameter: 1.06 inches Sealing Element Width: 0.18 inches Centering Ring Thickness: 0.12 inches Pack Quantity: 12 pieces
Applications
Sealing flange connections in chemical and petrochemical processing High-pressure steam lines and power generation systems Oil and gas pipelines, valves, and fittings
Refinery and hydrocarbon processing equipment General industrial piping requiring a resilient, metal-reinforced seal
