BOLA Glass Stirrer Bearings, PTFEGlossaryPTFE Polytetrafluoroethylene

Material: PTFEGlossaryPTFE Polytetrafluoroethylene

Temperature resistance: from -200°C to +250°C

Chemical resistance: +++ universal

Vacuum: suitable

Product description
Combination of a borosilicate glass piece with ground joint, an interior PTFEGlossaryPTFE Polytetrafluoroethylene shaft guide with integrated special gasket and a GL screw cap made of PPSGlossaryPPS Polyphenylsiloxan . The special gasket made of PTFEGlossaryPTFE Polytetrafluoroethylene and an FPMGlossaryFPM Elastomer on the base of fluorocaoutchouc, more familiar as VITON® (DuPont). Many O-rings, lip seals and sleeves are made of FPM. It has a very good resistance to heat, chemicals, weather and ozone. Furthermore, it is resistant to sulphurated mineral oils and fats and to hardly inflammable HFD liquids (basis phosphor ester or chlorinated hydrocarbon). It is not resistant to anhydrous ammonia, caustic soda, potassium, ketones, ether, dioxane as well as some amines and organic acids. For BOLA products, FPM is mainly used as sealing material, mostly protected from the medium by a PTFEGlossaryPTFE Polytetrafluoroethylene sealing lip. o-ring which is compressed by a GL screw cap provide a good sealing of the stirrer shaft. This gasket can be exchanged after wearing.

Applications
Suitable for vacuum, perfect bearing for stirrer shafts made of stainless steel, glass and for BOLA Stirrer Shafts.