First, understanding filler
　　
1. Packing characteristics
　　
â‘ a certain plasticity, under the action of compression can produce a certain radial force and close contact with the shaft.
　　
â‘¡ sufficient chemical stability, non-polluting medium, the filler is not swollen by the media, filler impregnation medium is not dissolved, the filler itself does not corrode the sealing surface.
　　
â‘¢ self-lubricating performance is good, wear-resistant, small friction factor.
　　
â‘£ There is a small amount of eccentric shaft, the filler should be sufficient floating flexibility.
　　
⑤ simple to manufacture, easy to fill.
　　
Second, recognize the packing seal installation special tools packing seal installation special tools.
　　
Third, the correct packing seal installation
　　
1. Installation precautions
　　
The combination of filler and installation is correct on the sealing effect and service life of great influence. Improper combination and installation mainly mean improper combination of packing, wrong size of cutting packing, improper packing filling method, inadequate or uneven prestress of gland bolt, Pu floating ⑾? å³ å³ å‰ ask Jian Jian ⑾ ç› ç› milling squid ç½® 庑 庑 庑 蟮 蟮 蟮 蟮 蟮 that pavilion 芟: 芟 even bluff? Um planting emblem? Back to Cang Qibu Jia chloride ç¡– ç› Ha 芊 guy ⑸? Gou solitary 芊 rabbit 芊 夤 缡 缡 é—¹ na gluttonous 蛑 蛑 arc K 裕 Yu Park 沧 å‹Ÿ raised the occasion of Ji 匦 guanidine é¹± æ„Ž bad trouble Jue Ying 0 Cangkuang coins ⒠庖 rhyme recorded father 龇Correctional sock? Frog? / Span>
　　
â‘ clean water centrifugal pump stuffing box inside the hole must have a certain side chamfer.
　　
â‘¡ centrifugal pump stuffing box inner surface and the shaft surface should not be scratched (especially axial scratches) and rust, requiring a smooth surface.
　　
â‘¢ packing ring size and the size of the packing box and shaft to coordinate, do not meet the specifications should be considered replacement.
　　
â‘£ chemical pump cut filler ring can not be any deformation of its installation, there will be a notch of the packing ring axial torsion from the shaft sleeve on the shaft, and can be used to split the sleeve cylinder to the shaft rear end Push it in, and its cuts should be staggered.
　　
⑤ After the installation, by hand tighten gland bolts of the nut , the movable plate after the hand to feel moderate appropriate, then debug operation and to allow a small amount of leakage, but then should be gradually reduced, if the leakage is still large, The tension can be properly resumed the bolt, but not too tight, so as not to burn the shaft.
　　
â‘¥ has failed packing seal, if the reasons for packing, replacement or filler can be used to deal with, so that the normal operation.
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