Packing seal by the filler box, packing, water seal ring and packing gland and other components. Packing seal is mainly by the outer surface of the shaft and packing in close contact with the seal, to prevent leakage of liquid pump out. Packing packing, also known as packing, commonly used filler is butter soaked cotton fabric or woven asbestos rope, sometimes adding graphite, molybdenum disulfide and other solid lubricants. Sealed high temperature liquid filler, often used metal foil asbestos dressing and other materials. The sealing tightness can be adjusted by increasing the packing thickness and tightening the packing gland.
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