Overview
The C-Type Spiral Wound Gasket with Outer Ring is a high-performance sealing solution engineered for extreme pressure and temperature applications in industrial piping and pressure vessel systems. This gasket conforms to the rigorous GB/T4622.2-2003 standard, ensuring dimensional precision and reliable performance. Its robust, multi-layer spiral wound construction creates a resilient seal that accommodates system fluctuations, making it ideal for critical service where leak prevention is paramount.
Key Features
Engineered for high-pressure service up to 913 PSI (PN63) Constructed with a durable 304 stainless steel outer ring for handling and alignment Sealing element wound from alternating plies of 304 stainless steel and flexible graphite The C2220 winding configuration offers optimal density and spring-like recovery
Graphite filler provides excellent thermal conductivity and chemical resistance The outer ring centers the gasket and prevents over-compression during flange bolt-up Suitable for a wide temperature range from cryogenic to approximately 1500°F (continuous)
Specifications
Type: C-Type with Outer Ring (To GB/T4622.2-2003) Nominal Size: DN 40 (fits 1.5-inch nominal piping) Pressure Class: PN 63 (913 PSI) Construction: C2220 - Metal Windings and Filler with Outer Ring Winding Metal: 304 Stainless Steel Filler Material: Flexible Graphite Outer Ring Metal: 304 Stainless Steel Inner Ring: None Nominal Outer Diameter: Approximately 4.25 inches Nominal Inner Diameter: Approximately 1.93 inches Package Quantity: 1 unit
Applications
Sealing flanges in chemical and petrochemical processing systems High-pressure steam lines and power generation equipment Refinery and offshore oil & gas pipeline connections Heat exchangers, valves, and pump connections in severe service Any application requiring a resilient, high-integrity seal for ANSI Class 600 flanges
