Overview
This 1-1/4 inch NPS spiral wound gasket is engineered for high-integrity sealing in demanding industrial piping systems. Manufactured in strict compliance with ASME B16.20-2007 standards, it is designed for flanges with a 900LB pressure class, providing a reliable seal in high-pressure applications. The gasket features a robust construction with a PTFE filler and 304 stainless steel winding, supported by inner and outer reinforcing rings for optimal seating and bolt load distribution. It is intended for indoor use where a durable, chemically resistant seal is paramount.
Key Features
Manufactured to ASME B16.20-2007 standards for guaranteed dimensional accuracy and performance. Rated for high-pressure applications up to 900LB flange class. PTFE (Polytetrafluoroethylene) filler provides exceptional resistance to a wide range of corrosive chemicals and solvents. 304 stainless steel inner and outer rings (C2230 configuration) offer structural stability and prevent gasket blow-out. 304 stainless steel winding provides resilience and recovery under varying pressures and temperatures. Non-paintable surface ensures material integrity is not compromised.
Specifications
Nominal Pipe Size: 1-1/4 inch NPS Pressure Class: 900LB Construction: Spiral Wound Gasket with Inner and Outer Rings Filler Material: PTFE Winding & Ring Material: 304 Stainless Steel Compliance Standard: ASME B16.20-2007 Intended Use: Indoor Paintable: No Pack Quantity: 25 gaskets
Applications
High-pressure process piping in chemical and petrochemical plants. Sealing for pumps, valves, and heat exchangers in refinery applications. Utility and service lines in power generation facilities. General industrial piping systems requiring a robust, chemically resistant seal for flanged connections.








