Overview
This D-type spiral wound gasket is a precision sealing component engineered for high-performance flanged connections in industrial piping systems. Designed for a 150LB pressure class and DN150 nominal bore, it delivers a reliable, leak-tight seal capable of withstanding significant thermal cycling and mechanical stress. The gasket's robust construction ensures long-term service life in demanding process environments, including those involving elevated temperatures and pressures. It is manufactured in strict compliance with the HG/T20631-2009 standard, guaranteeing dimensional accuracy and material integrity for a perfect fit and optimal sealing performance.
Key Features
Engineered for 150LB pressure class flanged connections D-type design with integral inner and outer stainless steel rings
Spiral wound construction with flexible graphite filler for superior sealability 304 stainless steel winding and rings provide excellent corrosion resistance Conforms to HG/T20631-2009 industry standard for dimensional consistency Designed for reliable performance in high-temperature and high-pressure service
Precise machining ensures a proper fit and effective compression
Specifications
Material: 304 Stainless Steel Size: DN150 Standards: HG/T20631-2009 Connection Type: Flanged Inner Diameter: Approximately 6.2 inches Outer Diameter: Approximately 8.7 inches Overall Thickness: 0.18 inches Pressure Rating: 150LB Construction: 304 Stainless Steel Inner Ring / 304 Stainless Steel Windings with Graphite Filler / 304 Stainless Steel Outer Ring Style: D-type (with inner and outer rings) Pack Quantity: 2 pieces
Applications
General chemical and petrochemical processing
Power generation and utility piping systems
Oil and gas transmission and refining High-temperature steam lines
Industrial plant maintenance and repair Any application requiring a robust seal for ASME B16.5 or compatible DN150, 150LB flanges
