Seals are crucial components used to create barriers and prevent leaks in various systems. There are several types of seals available to suit different applications. Mechanical seals are widely used in rotating equipment to prevent fluid leakage, while O-rings offer versatile sealing solutions in hydraulic systems and plumbing fittings. Gaskets create static seals between flat surfaces, and lip seals effectively prevent fluid leakage along rotating shafts. V-rings seal against both inward and outward fluid ingress on rotating shafts, and cassette seals provide robust sealing and protection in challenging environments. Each type of seal serves a specific purpose and plays a vital role in ensuring the integrity and efficiency of the systems they are employed in.