PTFE Seal
Polytetrafluoroethylene (PTFE), also known as teflon/teflon or plastic king, is a copolymer of tetrafluoroethylene monomer. First, it was developed for national defense and cutting-edge technology and development but later it has gradually extended to civil use, which is generally applied to corrosion-resistant pipes, containers, pumps, high frequency communication equipment and wireless electrical equipment with high performance requirements.
PTFE sealhas become the common seal material for its unique properties.
Performance of PTFE Seal
Stability: almost all chemical resistance, strong acid, strong alkali or strong oxidizer and organic solvents have no effect on it.
Thermal stability: pyrolysis temperature above 400 ℃, therefore, it can work within the scope o - 200 ℃ ~ + 350 ℃.
Wear resistance: the friction coefficient of PTFE material is extremely low, only 0.02, which is 1/40 of rubber.
Self-lubricating: the surface of the PTFE material has a prominent self-lubricating property, and almost all of the viscous material cannot adhere to its surface.
Selection of PTFE Seal Material
However, the pure PTFE has the low strength and the abrasion performance is not very perfect. Usually some inorganic particles are put into the polymer PTFE, such as graphite, molybdenum disulfide, molybdenum disulfide, aluminium oxide, glass fiber, carbon fiber and so on to improve its mechanical properties. It also can be used with other polymers, such as polystyrene resin (PHB), polyphenylene sulfide (PPS), polyether ether ketone (PEEK), poly (perfluorinated (ethylene/propylene copolymer (PFEP) blending method to extend its damping temperature range and improve the creep resistance. Therefore, different PTFE materialas produce all knids of PTFE mechanical seals.
|
properties |
unit |
pure PTFE |
glass fibire filled PTFE |
carbon filled PTFE |
|
density |
g/cm3 |
|||
|
tensile strength |
MPa |
30 |
15 |
13 |
|
℃ |
260 |
260 |
260 |
There are many seal ring suppliers, but Hangzhou SealconFluid Machinery Co., Ltd are one of the best choices for you. we provide sealcon china, quality mechanical seals and etc. Formore information, please feel free to contact us!
Send product request
Other supplier products
 |
DOUBLE CARTRIDGE MECHANICAL SEALS | Double Cartridge Mechanical Sealfor Sale Cartridge mechanical seal is the rotary ring, stationary ring, spring, auxiliary seal, bushings, glands, ... |
 |
PTFE Seal | Polytetrafluoroethylene (PTFE), also known as teflon/teflon or plastic king, is a copolymer of tetrafluoroethylene monomer. First, it was developed... |
 |
Ceramic Seal | Ceramic material refers to inorganic non-metallic materials made of natural or synthetic compounds through forming and sintering. It has the advant... |
 |
PTFE Seal | Polytetrafluoroethylene (PTFE), also known as teflon/teflon or plastic king, is a copolymer of tetrafluoroethylene monomer. First, it was developed... |
 |
MECHANICAL SEALING MATERIAL | Stainless Steel Seal Stainless Steel is short for stainless acid resistant steel. It is called Stainless Steel with weak corrosive medium or Stain... |
Same products
 |
Floral Garden Tools Set | Seller: Dongyang Guorui Industry And Trade Co., Ltd. | Investing in a floral garden tools set not only enhances your gardening experience but also add... |
 |
Rice Husk Pellet Machine | Seller: Jiangsu Kingwood Industrial Co., Ltd. | ● JWZL-420 is the most popular biomass/woodpellet machine of all the pellet mills offered by Ch... |
 |
Greece-liquid nitrogen vapor phase storage systems KGSQ | Seller: Henan Tianzhidao Biological Technology Co., Ltd | In today's era of continuous technological progress, with the increasingly high requirements for ... |
 |
Common Rail Fuel Injector Nozzle L500PBC | Seller: 738347 | Common Rail Fuel Injector Nozzle L500PBC 0 445 110 189 Injector Valve Set 0 445 110 190 Injector... |
 |
Common Rail Fuel Injector Nozzle F00VX40014 | Seller: 738347 | Common Rail Fuel Injector Nozzle F00VX40014 Common Rail Fuel Injector Nozzle F340 Common Rail ... |
