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 |
There are many seal ring suppliers, but Hangzhou SealconFluid Machinery Co., Ltd are one of the best choices for you. we provide sealcon china, quality mechanical seals and etc. Formore information, please feel free to contact us!
Send product request
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... |
 |
SEAL SPARE PARTS | Sealcon supplies a series of pump mechanical seal parts, which are developed and manufactured by using the latest technology. All the mechanical se... |
 |
PTFE Seal | Polytetrafluoroethylene (PTFE), also known as teflon/teflon or plastic king, is a copolymer of tetrafluoroethylene monomer. First, it was developed... |
 |
Mechanical Seal On The Use Of Rotating Equipment | Mechanical seal of the symptoms and elements lRotating mechanical sealparts of the rotation equipment in the running side, sealed face often show ... |
 |
DOUBLE CARTRIDGE MECHANICAL SEALS | The double cartridge mechanical sealis a pre-assembled package of seal components, which make the installation much easier to prevent potential ins... |
Same products
 |
Seller: SHIJIAZHUANG YINGFANG TRADE CO.,LTD | ||
 |
Micronized wax powder for shoe polish processing | Seller: Syntop chemical Co.,Ltd. | Micronized wax powder is used as a functional additive in shoe polish processing. Its core functi... |
 |
Preform Mould | Seller: Taizhou Qihong Mold Co., Ltd. | Taizhou Qihong Mold Co., Ltd. provides professionally designed Preform Mould solutions for modern... |
 |
Micronized Wax used as dispersant for color masterbatch | Seller: Syntop chemical Co.,Ltd. | Micronized wax is a highly effective pigment dispersant in color masterbatch. Its core mechanism ... |
 |
Automated Parallel Concentrator ORAS-12 | Seller: Beijing Orun Scientific Instrument Co., Ltd. | Automated Parallel Concentrator ORAS-12 The direction of the blow needle is adjustable. Nitrogen... |
