Overview
This industrial-grade spiral wound gasket is engineered for high-pressure sealing in piping systems. It conforms to the HG/T20610-2009 standard and is rated for PN40 pressure class and DN400 (approximately 16-inch) nominal bore. The construction features 304 stainless steel windings with a PTFE filler, providing a resilient seal resistant to a wide range of chemicals and temperatures. Suitable for both indoor and outdoor applications, it is designed for critical flange connections in demanding process environments.
Key Features
Engineered for high-pressure service up to PN40 class Constructed with corrosion-resistant 304 stainless steel windings Features a PTFE (polytetrafluoroethylene) filler for broad chemical compatibility D-type design includes inner and outer retaining rings for precise installation and handling Provides a reliable, leak-tight seal in dynamic flange conditions Conforms to the HG/T20610-2009 industry standard for dimensions and materials
Specifications
Standards: HG Chemical Base: Metal and PTFE Sealant Type: Gasket Indoor/Outdoor Use: Both Paintable: No Nominal Size: DN400 (approximately 16 inches) Pressure Rating: PN40 Construction: 304 Stainless Steel Windings with PTFE Filler Gasket Type: Spiral Wound with Inner and Outer Rings (D-Type) Pack Quantity: 1 unit
Applications
High-pressure piping systems in chemical and petrochemical processing
Flange connections in power generation and utilities Sealing for pumps, valves, and heat exchangers
Process lines handling corrosive media or requiring high purity General industrial maintenance and repair for critical pipe joints
