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.
在线联系供应商
Other supplier products
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... | |
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... | |
Flygt Mechanical Seals FOL-45 | Hangzhou Sealcon Fluid Machinery CO., Ltdwas established in 2011, with Sealcon trademark we specialized in high quality mechanical sealdesign, manu... | |
Ceramic Seal | Ceramic material refers to inorganic non-metallic materials made of natural or synthetic compounds through forming and sintering. It has the advant... | |
Carbon Seal | Carbon shaft sealhas a long history. Graphite is an isoform of element carbon. In 1971, the United States studied the successful flexible graphite ... |
Same products
AUTO Self-Priming Pump | 卖方: 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 | 卖方: 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 | 卖方: 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 | 卖方: 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 | 卖方: Greentech International (Zhangqiu) Co., Ltd | Features of Centrifugal Blower: 1. The profile curve of impeller is advanced. As a result, the... |