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 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 ... |
 |
Difference between Single and Double Mechanical Seal | The basic types of mechanical seals for pumps are classified as single mechanical seals, double mechanical seals and series mechanical seals. The s... |
 |
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 | PTFE Teflon Bellow Mechanical Sealfor Sale China PTFE Teflon Bellow sealhas been widely applied in the area of atomic energy, defense, aerospace, e... |
 |
TC Seal | TC materials have features of high hardness, strength, abrasion resistance and corrosion resistance. It is known as “Industrial Tooth”.... |
Same products
 |
2sk-1.5 Liquid Ring Vacuum Pump /Motor Not Included | 卖方: Greentech International (Zhangqiu) Co., Ltd | Greentech International (Zhangqiu) Co., Ltd is the professional liquid ring vacuum pump supplier.... |
 |
2sk-3 Liquid Ring Vacuum Pump/Motor Not Included | 卖方: Greentech International (Zhangqiu) Co., Ltd | Greentech International (Zhangqiu) Co., Ltd is the professional liquid ring vacuum pump supplier.... |
 |
2sk-12 Liquid Ring Vacuum Pump/Motor Not Included | 卖方: Greentech International (Zhangqiu) Co., Ltd | Greentech International (Zhangqiu) Co., Ltd is the professional liquid ring vacuum pump supplier.... |
 |
2sk-20 Liquid Ring Vacuum Pump/Motor Not Included | 卖方: Greentech International (Zhangqiu) Co., Ltd | Greentech International (Zhangqiu) Co., Ltd is the professional liquid ring vacuum pump supplier.... |
 |
2sk-6 Liquid Ring Vacuum Pump/Motor Not Included | 卖方: Greentech International (Zhangqiu) Co., Ltd | Greentech International (Zhangqiu) Co., Ltd is the professional liquid ring vacuum pump supplier.... |
