Long shaft pump is an energy-saving water intake machinery equipment, which is often used in factories, hospitals, hydropower stations, and water treatment plants due to its high energy-saving efficiency, stable operation, and moderate price.
The precision and manufacturing process of mechanical seals are relatively complex, and the relative cost is relatively high. The production and manufacturing of packing seals are relatively simple and cost-effective, so they are more widely used.
② Open the packing box of the long shaft pump and check the filling quality and properties of the packing. If the filling method is improper, the filling should be refilled according to the correct method; If there is wear or variation in the properties of the filler (such as uneven thickness, dryness, hardening, etc. of asbestos rope), a new filler should be replaced. Packing method: Generally, asbestos ropes are woven into various sizes with different thicknesses, soaked in butter, and then pressed into strips with a square cross-section. Graphite powder is applied to the outer surface, and the appropriate size of packing is cut into several sections according to the thickness of the shaft and loaded into the packing box. The number of layers of packing should be appropriate, usually 4-6 layers, and the packing box cover should be tightened with a wrench (usually with a water drop of 60 drops per minute).