Overview
This 4-inch nominal pipe size spiral wound gasket is engineered for creating robust, leak-tight seals in industrial flange connections. It is manufactured to meet recognized industry standards, ensuring consistent quality and dimensional accuracy for reliable performance in demanding piping systems. The gasket is suitable for both indoor and outdoor applications across a wide range of service conditions, providing a versatile sealing solution for maintenance and new construction projects.
Key Features
Constructed with a durable 321 stainless steel outer winding for excellent corrosion and heat resistance. Features a resilient graphite filler material that compresses to form an effective seal against uneven flange surfaces. Designed to perform across multiple pressure classes, including PN16 (approximately 232 PSI) and PN40 (approximately 580 PSI). Rated for continuous service at temperatures up to 900°F. Precise dimensions ensure proper fit and alignment on standard 4-inch flanges.
Specifications
Nominal Pipe Size: 4 Inch Outer Diameter: 5.1 inches Bolt Circle Diameter: 0.55 inches Thickness: 0.13 inches Metal Wind Material: 321 Stainless Steel Filler Material: Graphite Pressure Rating: Suitable for PN10, PN16, PN25, PN40, and PN63 classes Maximum Temperature Rating: 900°F Standards: Meets Industry Standards Chemical Base: Graphite Sealant Type: Gasket Indoor/Outdoor Use: Both Paintable: No
Applications
General industrial process piping in chemical and petrochemical plants. Power generation and utility systems. Oil and gas pipeline connections. Heating, ventilation, and high-temperature ducting. Water treatment and distribution infrastructure.
Packaging This item is sold in a convenient package of 12 gaskets.








