Overview
This 10-inch, 600LB pressure class spiral wound gasket is engineered for demanding industrial piping and flange connections. It conforms to the HG/T 20631-2009 standard, ensuring dimensional compatibility and performance for a wide range of flange systems. The gasket features a robust D-type construction with inner and outer retaining rings, which centers the seal on the flange and prevents over-compression. Its core is built with precision-wound 316L stainless steel windings and a polytetrafluoroethylene (PTFE) filler, creating a resilient, layered seal capable of withstanding significant mechanical stress and thermal cycling.
Key Features
Engineered to HG/T 20631-2009 standard for reliable dimensional fit 600LB pressure rating for high-pressure service applications D-type design with inner and outer carbon steel retaining rings for secure installation Winding core of 316L stainless steel for excellent corrosion resistance
PTFE filler providing superior chemical resistance to a broad spectrum of aggressive media
Suitable for both indoor and outdoor installation environments Non-paintable, ready-to-use construction
Specifications
Standard: HG/T 20631-2009 Nominal Pipe Size: 10 inches Pressure Class: 600LB Style: D (with inner and outer rings) Windings Material: 316L Stainless Steel Filler Material: Polytetrafluoroethylene (PTFE) Retaining Ring Material: Carbon Steel Color: Metallic (stainless steel/PTFE) Indoor/Outdoor Use: Both Paintable: No Pack Size: 1 unit
Applications
This gasket is ideal for sealing flanged joints in chemical and petrochemical processing pipelines. It is commonly used in power generation facilities, oil and gas transmission systems, and industrial refrigeration plants. Its chemical resistance makes it suitable for handling acids, caustics, and solvents, while its pressure rating ensures integrity in high-pressure steam, hydrocarbon, and process fluid lines.
