Overview
Engineered for critical sealing in high-pressure, high-temperature piping systems, this D-Type metal spiral wound gasket is a premium sealing solution for industrial flange connections. It is manufactured in strict compliance with the HG/T20610-2009 standard, ensuring dimensional accuracy and performance reliability for demanding applications. The robust construction, featuring inner and outer containment rings, provides superior stability and prevents over-compression, making it an ideal choice for maintaining leak-free integrity under extreme service conditions.
Key Features
D-Type construction with integral inner and outer metal containment rings Designed for sealing pressures up to 5800 PSI Winding and rings constructed from corrosion-resistant 304 stainless steel Primary sealing filler composed of resilient PTFE (polytetrafluoroethylene) Conforms to industry standard HG/T20610-2009 for dimensional interchangeability Prevents gasket blow-out and controls bolt load distribution
Suitable for a wide range of thermal and chemical service environments
Specifications
Material (Winding & Rings): 304 Stainless Steel Material (Filler): PTFE Gasket Type: D-Type Spiral Wound with Inner and Outer Rings Nominal Pipe Size: 12.2 inches Hole Diameter: 10.9 inches Pressure Rating: PN40 (5800 PSI) Finish: Mill Finish Pack Quantity: 2
Applications
High-pressure process piping in chemical and petrochemical plants
Refinery and offshore oil and gas production systems
Power generation and steam utility lines High-temperature fluid transfer systems Critical flange connections requiring reliable, long-term sealing performance
