Overview
This 4-inch, 900 PSI spiral wound gasket is engineered for demanding industrial sealing applications where reliability is critical. It is constructed for high-pressure flange connections in piping systems, heat exchangers, and pressure vessels. The gasket's robust, multi-layer design ensures a tight, long-lasting seal that compensates for flange irregularities and withstands thermal cycling and mechanical stress. Manufactured to stringent industry standards, it is suitable for both indoor and outdoor use in challenging environments.
Key Features
Engineered for high-pressure service up to 900 PSI Exceptional chemical resistance from PTFE (Polytetrafluoroethylene) filler Thermal stability for continuous operation up to 500°F Reinforced construction with 316L stainless steel inner and outer rings
Compensates for flange surface imperfections and bolt load variations Manufactured in compliance with SH/T3407-2013 standards
Specifications
Nominal Pipe Size: 4 Inch Pressure Class: 900 PSI Construction: Spiral Wound Winding Material: 316L Stainless Steel with PTFE Filler Inner Ring: 316L Stainless Steel Outer Ring: 316L Stainless Steel Temperature Rating: Up to 500°F Standards: SH/T3407-2013 Chemical Base: Polytetrafluoroethylene Sealant Type: Gasket Indoor/Outdoor Use: Both Paintable: No Package Quantity: 12
Applications
High-pressure process piping in chemical and petrochemical plants Flange connections for pumps, valves, and compressors
Heat exchanger and pressure vessel sealing
Utility and steam line systems Applications requiring resistance to corrosive media and wide temperature ranges
