Gasketing & Sealing
Gaskets are used to prevent fluid or gas leaks by forming impervious barriers. For successful gasketing, the seal must remain intact and leak-free over a prolonged period of time. Therefore, the gasket must resist the fluid and/or gaseous medium being sealed or excluded, and withstand the operating temperatures and pressures to which it is subjected.
There are three types of flange gaskets.
1. Conventional pre-cut compression gaskets are made from paper, rubber, cork, metal or other materials.
2. Formed-in-Place (FIP) gaskets are applied as a liquid sealant to one of the flange surfaces before the parts are assembled. After assembly, the FIP gasket spreads and cures between the flanges, filling gaps, scratches, and surface irregularities to provide a durable seal.
3. Cured-in-Place (CIP) gaskets, which are applied as a liquid by tracing machines in precise beads to one of the flanges and cured by ultraviolet (UV) light, form an elastomeric material with adhesion to the
flange surface. Sealing is achieved through compression of the cured gasket during flange assembly.