Clean water centrifugal pump packing seal replacement

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  There are many types of packing, commonly used stranded packing, knot packing, plastic packing, metal packing four categories. The main material is graphite braided packing, oil impregnated asbestos packing, PTFE fiber packing, PTFE impregnated asbestos packing.
  
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? 峁 峁 剐 ask Jian Jian ⑾ 盍 盍 milling squid 置 庑 庑 庑 蟮 蟮 蟮 蟮 蟮 that pavilion 芟: 芟 even bluff? Um planting emblem? Back to Cang Qibu Jia chloride 硖 盍 Ha 芊 guy ⑸? Gou solitary 芊 rabbit 芊 夤 缡 缡 闹 na gluttonous 蛑 蛑 arc K 裕 Yu Park 沧 募 raised the occasion of Ji 匦 guanidine 鹱 愎 bad trouble Jue Ying 0 Cangkuang coins ⒁ 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.

Shrink Packing Machine


Shrink packing machine applications

Widely used in packaging such as glass bottles, plastic foam, paper boxes, toys, electronics, electrical appliances, stationery, books, music, hardware tools, daily necessities, medicine, cosmetics, beverage, fruit, label items s. The heat wrapped products would be much better good looking and more attractive, and good for displaying. Besides it `s moisture proof, dust free, also it enable prevent pollution, and protect the goods from external shocks, especially for fragile goods. In addition, can reduce product are demolished, and the possibility of theft.


Shrink packing machine features

1. Using roller conveyor, roller outsourcing high temperature silicone tube, can freely rotate each, or you can use Teflon or stainless steel     mesh conveyor belt conveyor.

2. There is uniform temperature inside the furnace, applicable to shrink PE, PVC, POF shrink film and other various materials.

3. The furnace insulation liner to form a hot air circulation, for different packaging materials packaging needs, adjust the speed of the           conveyor belt in order to achieve optimal contraction effect.

4. Have hot air rational allocation, low power capability and ideal even shrink effect.

5. Stainless steel pipe flow conveying (high temperature casing (coat)), to prevent the film sticky, allows the machine more durable.

6. mported motor and available speed control system allows long time continuous packing.

7. Within 0-300 degree range, the temperature adjust freely.

Shrink Packing Machine


Shrink Packing Machine

Shrink Packing Machine,Shrink Machine,Shrink Wrap Machine,Automatic Shrink Wrapping Machine

ShenZhen Hengxing Machinery Factory , http://www.szchxjx.com