Packings, asbestos cords
Packing used to seal packing boxes of valves, centrifugal and reciprocating pumps, as well as various units at different operating temperatures, pressure, and media. Packing are the most common type of sealing materials and differ in both the materials from which they are made and the manufacturing methods (structure). Both of these factors significantly affect the operational properties of the gaskets. Braided packings are based on various fibrous materials. An important component of packings are various types of impregnations and fillers, giving them the necessary properties.