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.
在线联系供应商
Other supplier products
 |
Rubber Seal | Rubber seal is one of the common base components in sealing device, and plays an important role in the leaking and sealing. It is composed of one o... |
 |
MECHANICAL SEALS FOR PUMP | Mechanical seal for pump is a kind of dynamic seal assembly, which is widely used on the rotating shaft. It is also known as the end seal. Consisti... |
 |
PTFE Seal | Polytetrafluoroethylene (PTFE), also known as teflon/teflon or plastic king, is a copolymer of tetrafluoroethylene monomer. First, it was developed... |
 |
ELASTOMER RUBBER BELLOW MECHANICAL SEALS | Types of Elastomer Bellow Mechanical Seals Designed by single or double, Hangzhou SEALCON supply standard and OEM elastomer bellows seals to sui... |
 |
Flygt Mechanical Seals FKL-35 Lower Parts for Flygt 3126/2084/2135/2151/2201 Pump | Flygt Mechanical Seals FKL-35 Replacement for: FKL-35 lower parts forflygt 3126pump FKL-35 lower parts for flygt 2084, 2135, 2151, 2201 pump Fe... |
Same products
 |
Top Selling Mechanical Seal | 卖方: Xingtai Subote Oil Seal Manufacturing Co., Ltd. | Top Selling Mechanical Seal TC5Y 140*160*14/17 Oil Seal Manufacturers Black Color Hydraulic ... |
 |
Oil Seal Solutions | 卖方: Xingtai Subote Oil Seal Manufacturing Co., Ltd. | Oil Seal Solutions As electric vehicles (EVs) continue to gain global market share, the role... |
 |
Oil Seals | 卖方: Xingtai Subote Oil Seal Manufacturing Co., Ltd. | Oil Seals Agricultural machinery operates in extremely harsh environments, making custom ess... |
 |
Oil Seals for Heavy Industry | 卖方: Xingtai Subote Oil Seal Manufacturing Co., Ltd. | Oil Seals for Heavy Industry In heavy industry sectors such as mining, construction, and pow... |
 |
PTFE Seals Manufacturer | 卖方: Xingtai Subote Oil Seal Manufacturing Co., Ltd. | PTFE Seals Manufacturer The global is entering a period of sustained expansion, with analyst... |
