doubleseal
A doubleseal is a type of mechanical seal used in rotating equipment to prevent leakage of process fluids. It consists of two independent sealing faces that are separated by a small gap. This gap is typically filled with a barrier fluid, which is maintained at a pressure higher than the process fluid. The barrier fluid serves multiple purposes, including lubrication of the seal faces, cooling, and preventing the ingress of air or process fluid into the seal.
There are two main types of doubleseals: wet seals and dry seals. Wet seals use a liquid
Doubleseals offer several advantages over single mechanical seals, including enhanced safety, improved process reliability, and extended