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
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.
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 |
Sealconprovides high pressure mechanical seal,welcome to order.
Send product request
Other supplier products
 |
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... |
 |
Carbon Seal | Carbon mechanical seal has a long history. Graphite is an isoform of element carbon. In 1971, the United States studied the successful flexible gra... |
 |
PTFE WEDGE MECHANICAL SEALS | China-Sealcon is committed to providing the best service and products in fluid industry. And Sealcon's PTFE Wedge Mechanical Seals can replace the ... |
 |
Seal Spare Parts Spring | Introduction of Seal Spare Parts Spring For a mechanical seal, the initial closing force ensures that the seal will function properly from startup... |
 |
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... |
Same products
 |
AUTO Self-Priming Pump | Seller: Zhejiang Huaqi Information Technology Co., LTD | Automatic Priming: Our self-priming pump is equipped with an automatic priming system that elimin... |
 |
JS1100 Self-Priming Pump | Seller: Zhejiang Huaqi Information Technology Co., LTD | Stainless steel pump body JS series self-priming electric pumps. Equipped with a waterproof glug ... |
 |
C150-1.2series High Flow Multi-Stage Centrifugal Blower/Vacuum Pump | Seller: Greentech International (Zhangqiu) Co., Ltd | Greentech International (Zhangqiu) Co., Ltdis the professional blower supplier.Multistage Centrif... |
 |
C125-1.6 Series High Flow Multi-Stage Centrifugal Blower /Blower | Seller: Greentech International (Zhangqiu) Co., Ltd | Greentech International (Zhangqiu) Co., Ltdis the professional blower supplier.Multistage Centrif... |
 |
C125-1.4 Series High Flow Multi-Stage Centrifugal Blower /Blower | Seller: Greentech International (Zhangqiu) Co., Ltd | Features of Centrifugal Blower: 1. The profile curve of impeller is advanced. As a result, the... |
