Overview
This Type D spiral wound gasket with inner and outer rings is engineered for high-integrity sealing in demanding industrial flange connections. It is manufactured to the exacting requirements of the HG/T20610-2009 standard, ensuring dimensional precision and performance reliability for critical service. Designed for a nominal pressure rating of PN25 (Class 150), this gasket provides a robust seal capable of withstanding pressures up to approximately 363 PSI. Its construction offers superior resilience and leak-tight performance in applications involving thermal cycling, high pressure, and challenging media.
Key Features
Engineered for high-pressure service up to PN25 (approx. 363 PSI) Precision-manufactured to HG/T20610-2009 industry standard
Dual stainless steel ring construction for enhanced sealing and handling
Flexible wound metal and filler design accommodates flange face irregularities
Excellent chemical and thermal resistance from premium material combination
Specifications
Gasket Type: Spiral Wound with Inner and Outer Rings (Type D) Nominal Size: DN25 (suitable for approximately 1-inch nominal bore piping) Pressure Rating: PN25 (Class 150) Construction Materials: 304 Stainless Steel Inner/Outer Rings, 316L Stainless Steel Windings, Graphite Filler Design Standard: HG/T20610-2009 Specific Designation: D2525 Package Quantity: 36 units
Applications
Sealing connections in chemical and petrochemical processing systems High-pressure steam lines and power generation utilities
Oil and gas pipeline flanges and valve bonnets Heating, ventilation, and industrial plant piping Any application requiring a reliable, resilient seal for ANSI Class 150 flanges
