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.
Send product request
Other supplier products
 |
Double Cartridge Seals D11 | Replacement for: John Crane SE2 safematic Features： Pulp and paper plant Sulzer APP pumps Performance Capabilities safematic sealD11 Temper... |
 |
Flygt Mechanical Seals FSU-90 | Replacement for: FSU-90 upper parts for flygt 3230, 3500, 3501 pump FSU-90 upper parts for flygt 3300, 3305, 3310, 3311, 3312, 3350, 3351, 3355, ... |
 |
Carbon Seal | Graphite is an isoform of element carbon. In 1971, the United States studied the successful flexible graphite sealing material, which solved the le... |
 |
DIN Standard Double Cartridge Seals D21 with ANSI Bore Replacing Burgman Cartex DN | Double Cartridge Seals D21 Replacement for: BURGMAN CARTEX DN Features: DIN standard ANSI bore Performance Capabilities of cartex mechanica... |
 |
Types of PTFE Wedge Mechanical Seals | Hangzhou Sealcon Fluid Machinery Co., Ltd is a professional wedge gasket suppliersfor PTFE Wedge mechanical seals to suit all the major pump equipm... |
Same products
 |
Zbk03 Series Roots Vacuum Pump/Roots Pump | Seller: Greentech International (Zhangqiu) Co., Ltd | ZBK series roots vacuum pump is a kind of coarse vacuum acquisition of equipment, it is widely us... |
 |
"Brand Assurance Globe valve GR2-0-KB-G5/30X48 for power generation | Seller: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD | "Brand Assurance Globe valve GR2-0-KB-G5/30X48 for power generation YOYIK is a large number of st... |
 |
Wear Resistance Electric stop valve NKJ961Y-16C for thermal power plant | Seller: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD | "Wear Resistance Electric stop valve NKJ961Y-16C for thermal power plant YOYIK professional produ... |
 |
Brand Assurance Stop valve J61Y-600CL for power generation | Seller: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD | "Brand Assurance Stop valve J61Y-600CL for power generation YOYIK is a large number of steam turb... |
 |
JWSP-1 Oil Sampling Pumps | Seller: Shenzhen Joinwe Smart Co.,Ltd | JWSP-1 Oil Sampling Pumpis made of imported PA material, 303 stainless steel and 6061 aluminum al... |
