HG/T20610-2009 DN400 PN100 304 Stainless Steel Spiral Wound Gasket, Pkg Qty 3
Overview
This industrial-grade spiral wound gasket is engineered for critical sealing in high-pressure, high-temperature piping systems. Manufactured in strict compliance with the HG/T20610-2009 standard, it is designed for use on 16-inch (DN400) flanges with a nominal pressure rating of 100 Bar (approximately 1450 PSI). The gasket's construction utilizes a resilient graphite filler wound with 304 stainless steel, creating a robust seal capable of accommodating system vibration and thermal cycling. The inclusion of inner and outer retaining rings defines this as a D-type gasket, providing superior installation control and mechanical protection.
Key Features
D-type construction with inner and outer 304 stainless steel retaining rings Engineered for a pressure rating of approximately 1450 PSI (100 Bar) Designed for 16-inch (DN400) flange connections Primary sealing element wound from 304 stainless steel with graphite filler Retaining rings prevent gasket over-compression and potential blow-out
Excellent resilience and recovery to maintain seal under variable conditions
Suitable for a wide range of industrial media and temperatures
Specifications
Standard: HG/T20610-2009 Nominal Size: DN400 (16 inches) Pressure Class: PN100 (~1450 PSI) Gasket Type: D (with inner and outer rings) Winding Material: 304 Stainless Steel Filler Material: Flexible Graphite Retaining Rings: 304 Stainless Steel Recommended Flange Material: Stainless Steel Pack Quantity: 3
Applications
High-pressure process piping in chemical and petrochemical plants
Power generation and thermal utility systems
Oil and gas transmission and refining operations
Industrial processing equipment with stainless steel flanges Any application requiring a reliable, code-compliant seal for PN100 class, 16-inch connections
