Spiral-Wound Gasket

Spiral wound gaskets are high-performance sealing solutions designed for demanding flange connections. They are manufactured from alternating layers of pre-formed metal strip and soft filler material wound in a precise spiral configuration. When compressed, the V-shaped metal windings act as a resilient spring, maintaining seal integrity under fluctuations in pressure, temperature, and vibration.

This composite structure offers an optimal balance of strength and flexibility—providing greater durability than soft gaskets under severe service conditions while remaining more compliant than solid metal gaskets. The design allows extensive material customization: filler materials such as graphite, PTFE, or non-asbestos fibers can be selected for chemical compatibility, and the winding configuration can be tailored for low-load or high-integrity applications.

Performance can be further enhanced with optional inner and outer guide rings. The outer ring centers the gasket within the bolt circle and limits compression, while the inner ring reinforces structural stability and protects the sealing element from flange erosion or turbulence.

Combining exceptional mechanical strength with elastic recovery, spiral wound gaskets are extensively used in refineries, chemical and petrochemical plants, power generation facilities, aerospace systems, and a wide range of valve and piping assemblies.

Common Metal Used 

Common Filler Used