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English
Coiled Root is usually made of soft wire woven, and usually square or rectangular, or circular strips with the cross-sectional areas filled in the ceiling cavity to achieve sealing. A packing seal is the earliest cotton and linen fiber plug in the leakage channel to prevent leakage of liquid flow, mainly used as the shaft seal of water lifting machinery. Because of the wide source of packing, easy processing, low price, reliable sealing, and simple operation, so in use today. Now the coil is widely used in centrifugal pumps, compressors, vacuum pumps, mixers and ship propeller rotating shaft seal, piston pumps, reciprocating compressors, refrigerating machine reciprocating movement of the shaft seal, as well as a variety of valve stem rotating seal.
Asbestos packing is used for anti-corrosion sealing of acids and alkalis, liquid ammonia, water, oil media, valves, pumps, pistons, and rods.
Graphite packing: used for sealing valves, pumps, and reactors under high temperature, high pressure, and corrosion-resistant media; Fiber packing is a kind of thermal conductivity, acid and alkali resistance, suitable for all kinds of solvents, gasoline, water, liquid nitrogen medium pumps, valves, reactor seals (another kind of good thermal conductivity, acid and alkali resistance, high-temperature resistance, suitable for high-speed operating conditions of dynamic, static sealing). PTFE packing is made of pure PTFE dispersion resin as raw material, first made of raw film, and then twisted thread, woven into packing. This PTFE has no other additives and can be widely used in food, pharmaceuticals, papermaking chemical fibers, etc. have high cleanliness requirements, and have strong corrosive media on valves and pumps.
1. Have a certain strength. Keep the water pump packing from drying out and damaging before it wears out.
2. High chemical stability. That is, it has better adaptability to sealing fluids and lubricants, is not corroded and swelled by the fluid medium, and does not pollute the medium at the same time.
3. Good impermeability. The dry fluid medium has a certain penetration effect on many fibrous bodies, so the compactness of the tissue structure of the filler is required to be high.
4. Good thermal conductivity. It is easy to dissipate heat quickly and can withstand a certain high temperature after frictional heating.
5. Good self-lubrication. That is a low coefficient of friction and wear resistance.
6. The manufacturing process of packing is simple, the assembly and disassembly are convenient, and the price is low.
7. It has a certain elasticity and plasticity. When the water pump packing is axially compressed, it can generate a large radial pressing force to obtain a seal; when the machine and the shaft have vibration or eccentricity and the packing is worn, it can have a certain compensation ability.
Coiled Root Product, also known as sealing packing, is usually woven from softer threads, usually, with a square or rectangular, round strip filled in the sealing cavity to achieve sealing.
Now the Coiled Root Product is widely used in centrifugal pumps, compressors, vacuum pumps, mixers and ship propeller rotating shaft seal, piston pumps, reciprocating compressors, refrigerating machine reciprocating movement of the shaft seal, as well as a variety of valve stem rotating seal.
Coiled Root Product is good for us, Packing as a sealing material, easy processing, low price, reliable sealing, simple operation, so many people are willing to choose packing as a sealing material.
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