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
| 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... | |
| Ceramic Seal | Ceramic material refers to inorganic non-metallic materials made of natural or synthetic compounds through forming and sintering. It has the advant... | |
| PTFE Seal | Polytetrafluoroethylene (PTFE), also known as teflon/teflon or plastic king, is a copolymer of tetrafluoroethylene monomer. First, it was developed... | |
| DIN Standard Double Cartridge Seals D51 with Easy Installation Replacing Depac 321 | Double Cartridge Seals D51 Replacement for: Depac 321 Features: DIN standard Easy installation Performance Capabilities of Double Cartridge... | |
| Flygt Mechanical Seals | Flygt mechanical seals are usually used in the Swedish ITT Flygt mixer and submersible sewage pumps. They are one of the essentialFlygt pumppartsfo... |
Same products
| danfoss hydraulic motor supplier | 卖方: Baoding Dingsen Hydraulic Equipment Sales Co., LTD | danfoss hydraulic motor supplier Danfoss Hydraulic Motor – Overview A Danfoss hydra... | |
| rexroth hydraulic motor | 卖方: Baoding Dingsen Hydraulic Equipment Sales Co., LTD | rexroth hydraulic motor Rexroth Hydraulic Motor – Overview A Rexroth hydraulic moto... | |
| parker hydraulic pump supplier | 卖方: Baoding Dingsen Hydraulic Equipment Sales Co., LTD | parker hydraulic pump supplier Parker Hydraulic Pump Supplier – Simple Introduction ... | |
| eaton hydraulic pump remanufactured manufacturer | 卖方: Baoding Dingsen Hydraulic Equipment Sales Co., LTD | eaton hydraulic pump remanufactured manufacturer Remanufactured Eaton Hydraulic Pumps &ndash... | |
| danfoss hydraulic pump supplier | 卖方: Baoding Dingsen Hydraulic Equipment Sales Co., LTD | danfoss hydraulic pump supplier Danfoss Hydraulic Pump Supplier – Simple Overview A... |















