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 , containers, pumps, high frequency communication equipment and wireless electrical equipment with high performance requirements.
PTFE seal has 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.
If you want to know more kinds of mechanical seal cover, please contact us.
With years' experience, China Sealcon Seals has provided numerous solutions for different industries. Adopting advanced sealing technology, Sealcon's mechanical seals are sold worldwide and receive good comments.
Contact : Michael Yu, +86 571 86958675
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This page is about importers and exporters of PTFE Seal Search in a category : Women clothing Search in a category : ptfe, seal |
Friday, October 11, 2013
Quantity : 3000 - Price : $12
Model: SF-5042 Size: 154*73*12mm Battery: 12000mAh Material: ABS+PC N. Weight: 274g Life Time: >500 Input: 5V, 1A Output: 5V, 2.1A/1.2A Colors: White, Pink, Black MOQ: 1000pcs Product Features 1. Large capacity: it is a portable battery for cellphone with two USB outputs...
Solar Focus Co., Limited
- komiclarry
- 852 - Hong Kong
- +85 2 30 69 70 60
Wednesday, December 18, 2013
Quantity : 12 - Price : 37.50 €
Baby Girls Christening Shoes - Rose - White Style Number - Bss 11613-805 Material - 100% Polyester ; Lining: 65% Polyester, 35% Cotton Sizes - 0/6, 6/12, 12/18 Months (UK Shoe Sizes 1,2,3) Colour : White Sold in Packs of 12 Pairs Assorted Sizes Price - £2.50 each EAN: 503532016805...
Sheldon International Ltd.
- Sheldon
- LE5 0HJ - Leicester
- +44 116 2761069
Saturday, October 12, 2013
Quantity : 3000 - Price : $12
Model: SF-5042B Size: 155*73*16mm Battery: Polymer 20000mAh Material: ABS+PC N. Weight: 383g Life Time: >500 Input: 5V, 1A Output: 5V, 2.1A/1.2A Colors: White, Black, Pink MOQ: 1000pcs Product Features 1. Large capacity: it is a mobile charger for cellphone with two USB outputs...
Solar Focus Co., Limited
- komiclarry
- 852 - Hong Kong
- +85 2 30 69 70 60





