Product Core

The graphite spiral wound gasket is crafted by spirally winding metal strips, commonly in "V" or "W" shapes, with flexible graphite as the filler material. The metal strips, often made of SS304, SS316 or other alloy materials, are fixed at the start and end by spot welding.

Performance parameter

Project	Parameter values
compressibility	15%-25%
rebound degree	≥15%
Seal leakage rate	≤1×10⁻⁴ mbar·L/s(He check )
chemical resistance	Resistant to acid, alkali and solvent (except strong oxidant)

Note: Products support personalized customization.

Features

The graphite spiral wound gasket it offers excellent high-temperature and high-pressure resistance, capable of withstanding extreme conditions. The gasket has outstanding sealing performance, superior to many traditional gaskets like asbestos ones. Its filler material shows little deterioration at high temperatures, ensuring long-term sealability even under harsh temperature and pressure combinations. It can also maintain good sealing under severe conditions such as pressure fluctuations and heat cycles. Moreover, by choosing appropriate materials, it exhibits excellent sealability for corrosive fluids.

Uses

Designed to provide a reliable seal at flange connections, effectively preventing leakage of various media. It compensates for surface irregularities of flanges and maintains a tight seal as the pressure changes.

Application Fields

The graphite spiral wound gasket widely used in industries such as oil and gas, chemical, power generation, metallurgy, shipbuilding, paper-making, and pharmaceuticals. Ideal for sealing pipes, valves, pumps, manholes, pressure vessels, and heat exchangers at their flange joints.