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 |
If you want to know more about high pressure mechanical seal, please contact us.
More information about Sealcon, please visit our website.
Отправить запрос, связаться с поставщиком
Другие товары поставщика
PTFE Seal | Polytetrafluoroethylene (PTFE), also known as teflon/teflon or plastic king, is a copolymer of tetrafluoroethylene monomer. First, it was developed... | |
Carbon Seal | Mechanical carbon sealhas a long history. Graphite is an isoform of element carbon. In 1971, the United States studied the successful flexible grap... | |
Flygt Mechanical Seals Plug in Plastic | Replacement for: Plug in seals with plastic housing Features: Original Sweden design cartridge design big stock wilo pumps ITT pumps Flyg... | |
Elastomer Rubber Bellow Mechanical Seals | Cost effective and mass-produced Mechanical Seal with Rubber Bellow (elastomeric bellow)Designed by single or double, Hangzhou SEALCON supply stand... | |
PTFE TEFLON BELLOW MECHANICAL SEALS | Polytetrafluoroethylene (PTFE) is one of the best corrosion resistant materials in the world. Therefore, it is called "the king of plastic". So the... |
Похожие товары
Silicon Carbide Pump Seals Silicon Carbide Bearings For Canned Motor Pump | Продавец: Zhejiang Guanyu Sealing Parts Co., Ltd. | Silicon carbide pump seals products Corrosion Resistance: The silicone material is highly resist... | |
DOUBLE CARTRIDGE MECHANICAL SEALS | Продавец: Hangzhou Sealcon Fluid Machinery Co., Ltd | The double cartridge mechanical sealis a pre-assembled package of seal components, which make the... | |
TC Seal | Продавец: Hangzhou Sealcon Fluid Machinery Co., Ltd | TC materials have features of high hardness, strength, abrasion resistance and corrosion resistan... | |
Stainless Steel Seal | Продавец: Hangzhou Sealcon Fluid Machinery Co., Ltd | Stainless Steel is short for stainless acid resistant steel. It is called Stainless Steel with we... | |
SiC Mechanical Seal | Продавец: Hangzhou Sealcon Fluid Machinery Co., Ltd | SiC Mechanical Seal Silicon carbide products are classified into many kinds according to differe... |