SpiralWound Gaskets are made with an alternating combination of formed metal wire and soft filler materials. They form an effective seal when compressed between two flanges. A V-shaped crown centered in the metal strip acts as a spring, giving gaskets greater resiliency under varying conditions. Filler and wire material can be changed to accommodate different chemical compatibility requirements. They can be used over the complete temperature range from cryogenic to approximately 2000º degrees Fahrenheit. This type gasket can be used in all pressures from vacuum to the standard 2500 psi flange ratings. If the load available to compress a gasket is limited, gasket construction and dimensions can be altered to provide an effective seal.

Style 911

• Spiral winding only, containing preformed metal and soft filler material
• Suitable for tongue and groove, male and female, or groove to flat flanges
• Inner and outer diameters of winding are reinforced with several plies of metal without filler to give greater stability

Style 913

• Spiral winding consists of preformed metal and soft filler material
• Centering ring locates the gasket on the flange face, provides additional strength, and is a compression limiter
• Suitable for flat face and raised face flanges up to Class 2500

Style 913IR

• Inner ring acts as compression limiter and protects sealing elements from process media attack
• Suitable for flat face and raised face flanges up to Class 2500
• Recommended for higher pressure applications, for use with PTFE fillers, and when delineated by ASME B16.20

Style M (Manhole Cover)

• Spiral winding only, containing preformed metal and soft material

Style MC (Manhole Cover with Centering Ring)

• Spiral winding consists of preformed metal and soft filler material
• Centering ring locates the gasket on the flange face and provides additional strength. Also it is a compression limiter

Style M and MC Shapes

Round

Oval

Obround

For more technical information click graph