This is a high-performance 4-inch spiral wound gasket engineered for demanding industrial environments. It meets stringent ASME B16.20 standards, ensuring a reliable and leak-tight seal for raised face (RF) flanges in 600# pressure class systems. The gasket's Inconel 625 windings provide exceptional corrosion resistance, while the flexible graphite filler offers excellent sealing performance across a wide range of temperatures and pressures. A carbon steel outer ring provides added strength and facilitates proper centering during installation. Compliant with NACE MR0175/ISO15156 for sour service applications.

Key Specifications

Nominal Size:	4 Inch
Pressure Class:	600#
Standard:	ASME B16.20
Face Type:	Raised Face (RF)
Winding Material:	Inconel 625
Filler Material:	Flexible Graphite
Outer Ring Material:	Carbon Steel (CS)
Thickness:	0.175"
Compliance:	NACE MR0175/ISO15156

Application & Use

This gasket is ideal for use in chemical processing, oil & gas, power generation, and other industries where high-pressure, high-temperature, and corrosive environments are present. Its robust construction and compliance with industry standards make it a reliable choice for critical sealing applications, especially those involving sour gas.

Condition & Availability

Available in new condition. Please check stock availability before ordering. Custom sizes and materials may be available upon request.