Spiral Wound Gaskets were developed in the early 20th century

  •   Spiral Wound Gaskets were developed in the early 20th century to meet the increasingly demanding conditions in refinery operations. This type of gasket is usually used in conjunction with the flange surface finish created using a flange facing machine.

      Gaskets used in the oil, gas, and petrochemical industries need to be designed to withstand high pressures, extreme temperatures, and chemical attacks. The above-mentioned fluctuations, as well as the temperature difference of the flange surface and the bolt stress relaxation, require the gasket to have flexibility and recovery. The need for gaskets to recover from changing conditions cannot be overemphasized.

      Gasket structure

      Spiral Wound Gaskets are semi-metallic and consist of spirally wound V-shaped stainless steel belts and non-metallic filler materials such as graphite or polytetrafluoroethylene. There is also a solid outer ring on the gasket for centering and controlling compression. This minimizes the risk of material creeps due to over-tightening.

      For the worst conditions, spiral wound gaskets with additional inner rings are available. This protects the windings (especially the packing) from contamination or product erosion through the pipe joints.

      Gland Packing is also our product, welcome to consult and purchase.