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 Seal | Polytetrafluoroethylene (PTFE), also known as teflon/teflon or plastic king, is a copolymer of tetrafluoroethylene monomer. First, it was developed... |
 |
Different Types of Water Pump Seals | Elastomer Rubber Bellow Mechanical Seals Developed with rubber bellow, this type of seal is widely used for water, oil and other light duties appli... |
 |
O RING MECHANICAL SEALS | O-rings are one of the most frequently used products in sealing applications, relatively inexpensive and reliable. O-rings come in many styles and ... |
 |
ELASTOMER RUBBER BELLOW MECHANICAL SEALS | Types of Elastomer Bellow Mechanical Seals Designed by single or double, Hangzhou SEALCON supply standard and OEM elastomer bellows sealto suit di... |
 |
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
 |
Cold Glaze Stabilizer (Glazemate) | Seller: Marine Hydrocolloids | Meron’s Cold Glaze Stabilizer Glazemate, a ready to use Neutral Cold Glaze Stabiliser, whic... |
 |
Pectin | Seller: Marine Hydrocolloids | Meron Pectin is a structural polysaccharide of the cell wall of plants, Commercial pectin is comm... |
 |
Milk Shake Stabilizer | Seller: Marine Hydrocolloids | Meron’s Milk Shake StabilizerOur Milkshake Stabilizer has been designed to provide creamy m... |
 |
Flavoured Milk Stabilizer | Seller: Marine Hydrocolloids | Meron’s Flavoured Milk StabilizerFlavoured milk drinks are sweetened dairy drinks, typicall... |
 |
Ice Cream Stabilizer | Seller: Marine Hydrocolloids | Meron’s IceCream Stabilizer is a 100% vegan blend developed to not only enhance the texture... |
