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Packing glands are mechanical sealing devices used to prevent leakage along the shaft or stem of valves, pumps, and other rotating or reciprocating equipment. Typically composed of a gland follower, sleeve, and sealing rings (packing), they compress the packing material to form a tight seal. Commonly used in gate valves, globe valves, and centrifugal pumps, packing glands are made from materials like brass, stainless steel, or bronze. They ensure leak-proof operation in systems handling steam, chemicals, oil, and water. Packing glands are widely used in power plants, refineries, shipbuilding, and general industrial maintenance.
Packing glands allow for easy maintenance and adjustment of sealing pressure without dismantling the system. They can accommodate various packing materials like graphite, PTFE, or aramid fibers, depending on the application's temperature, pressure, and fluid type. Stainless steel versions provide corrosion resistance in aggressive environments. The gland ensures sealing even during shaft movement, reducing wear and extending service life. Proper selection and installation of packing glands enhance equipment reliability and minimize leakage-related downtime in industrial operations.
