Overview
This 4-inch, 150 LB spiral wound gasket is engineered for demanding industrial sealing applications. It features a robust construction with 304 stainless steel inner and outer rings and a graphite-filled winding, providing reliable performance in high-temperature and high-pressure environments. Compliant with HG/T 20631-2009 standards, it is suitable for both indoor and outdoor use on flanged connections. The design ensures excellent resilience and a tight seal against a wide range of media. Each package contains two gaskets.
Key Features
Engineered to HG/T 20631-2009 standards for assured dimensional compliance Constructed with 304 stainless steel inner and outer reinforcing rings for structural integrity
Features a resilient graphite filler for superior thermal and chemical resistance Provides a reliable seal in high-pressure applications up to 150 LB
Suitable for both indoor and outdoor installation environments
Offers excellent recovery and sealing performance under variable loads
Specifications
Standard: HG/T 20631-2009 Nominal Pipe Size: 4 inches Pressure Class: 150 LB Gasket Type: Spiral Wound with Inner and Outer Rings Winding Material: 304 Stainless Steel Filler Material: Flexible Graphite Ring Material: 304 Stainless Steel Design Designation: D2222 Indoor/Outdoor Use: Both Paintable: No Package Quantity: 2
Applications
Ideal for sealing flanged joints in piping systems across multiple industries
Commonly used in chemical and petrochemical processing plants
Suitable for power generation and utility services
Effective in oil and gas pipeline and refinery applications Used in high-temperature steam and heat transfer systems Applicable for a wide range of industrial fluid handling services
