1. These pigs are designed to clean new pipelines before they are commissioned
2. They are specially designed to travel long distances without any loss of sealing
3. These pigs can negotiate pipes of varying diameters during their passage with no loss of sealing integrity
4. As the name suggests, these pigs can move in both directions without any compromise in the sealing when traveling in either direction

For pipelines prone to heavy deposit build-up, pigs with metal and nylon brush assemblies are used.