Protective coating Bioflex Ultra AS

PTFEfor hosesfor hygienic applications

Bioflex Ultra AS is an essential requirement in applications where there is the risk of an electrostatic charge build-up on the inside surface of the PTFE tube which may then discharge through the tube wall. Media passing through which create such a risk are fluids which have a Conductance of less than 10-8 S/m (Siemens per Metre), or 104 pS/m such as fuels, solvents, freons, some WFI (ultra-pure “Water for Injection”) and non-polar organics which are being transferred at a medium to high flow velocity. All twin or multi phase media, and any non-mixing media, such as powder in air, or water droplets in steam, in gases or in oil, also colloidal fluids constitute a particular hazard for static charge generation, and always require grade AS. If in doubt, either order AS grade, or consult Aflex Hose. Design & Approvals Bioflex Ultra AS is an anti-static PTFE liner manufactured from FDA 21 CFR 177.1550 approved PTFE, mixed with less than 2.5% of ‘high purity’ Carbon Black material to FDA requirement 21 CFR 178.3297. Bioflex Ultra AS grade also meets the requirements of EC Directive 2007/19/EC. The carbon is encapsulated by the PTFE, and in normal, non-abrasive applications will not come loose to contaminate any fluid passing through. Bioflex Ultra AS also conforms to USP Class VI, at 37˚C (99˚F), 70˚C (158˚F) and at 121˚C (250˚F) - see Quality Assurance & Certification.