Overview
This D-type metal spiral wound gasket is engineered for high-integrity sealing in critical, high-pressure flange connections. Designed to the HG/T20610-2009 standard, it features a nominal pipe size of 12.5 inches and a pressure rating of PN100 (approximately 1000 PSI). Its robust construction ensures a leak-free seal in demanding industrial piping systems, handling extreme thermal cycling and mechanical stress with reliability.
Key Features
Engineered for high-pressure service up to 1000 PSI Exceptional temperature tolerance from -420°F to 1500°F D2222 configuration with inner and outer containment rings Winding core of 304 stainless steel with flexible graphite filler Containment rings prevent gasket over-compression and blow-out Manufactured to precise industry standard specifications
Specifications
Standards: HG Chemical Base: Graphite Thread Size Range: Not Applicable Temperature Range: -420°F to 1500°F For Pipe Material: Stainless Steel Nominal Size: 12.5 inches Pressure Class: PN100 Winding Material: 304 Stainless Steel Filler Material: Flexible Graphite Ring Material: 304 Stainless Steel Configuration: D-type with Inner and Outer Rings Package Quantity: 8
Applications
High-pressure process piping in chemical and petrochemical plants Power generation and thermal utility systems Oil and gas transmission and refining pipelines High-temperature steam lines and boiler feed systems Industrial processing equipment requiring reliable flange sealing
