PTFE Pressure Seals
The widest product range in the sector
Due to their elastomer sealing lip, standard radial shaft seals have only a limited application range with respect to pressure , temperature and media loads.
High performans sealing lips made from modified PTFE , cause very low friction , thanks to their stick-slip-free running , suffer little wear and tear, reducing the heat development and permitting higher peripheral speeds.
Advantages of PTFE seals are :
• Low friction seal material
• Low and high temperature range (-60 to +260 ºC
• High pressure capability (up to 25 bar )
• High speed ability ( 40 m/s )
• Outstanding resistance to chemical media
• Fits Standard oil seal installation groove.
Given the many different needs involved in practical applications, TOKEZ offers users many different product versions , ranging from standard one lip , ready to-install , available from stock; right through to customized special designs.
Materials
Sealing Lip
1- Standard material with exceptional wear and friction characteristics.For lubricated or dry running. Carbon filled , Black colour.
2- Special material for all lubricating and non-lubricating fluids and suitable for soft counter-surfaces. Moly filled , Grey colour.
3- Special application such as food stuff , pharmaceutical and chemical industries. Colour : Tan to dark brown.
Case Material
Standard material : Stainless steel AISI 316 Ti.
Material No: 1.4571
Gasket Elastomer
Standard material : Fluoroelastomer (-25 to +200 C)
Typical applications
• Centrifuge machinery
• Pumps
• Mixers
• Separators
• Agitators
• Spiral conveyors
• Rotary lead-throughs