Gland Packing Asbestos brand is usually made with braid or woven systems with a box cross section and its constituent materials can be graphite, Acrilic, PTFE, asbestos and so on the liquid at the pump that functions as a lubricating gasket. A seal which is commonly called a seal is a part in a machine tool construction that functions as a barrier / blocker in and out of liquid, both process fluid and lubricant. Seal is more referring to the understanding of a function whatever its shape and material, if it functions to prevent leakage.
gland packing asbestos The selection of the best seal is very important for the successful use of the pump to get pump reliability. In general there are two kinds of seals, the first is a static seal used when a meeting between the two surfaces to be sealed does not occur movement. Gaskets and a-rings are common examples of static seals shown in Figure 2. The a-ring originally referred to a round rubber that served as a seal. There are a-ring materials made from natural rubber, EPDM, Buna, Neoprene, Viton, Chemraz, Kalrez, Isolast to Encapsulated a-Ring type, where the a-ring is wrapped with PTFE. Some are purely made from PTFE and are called Wedge