Bioflex Ultra PTFE Hose
Bioflex Ultra in Comparison with Convoluted PTFE Hose
- Hygienic Cleanability - much better, due to no internal convolutions
- Flow Rates - more than 2 x higher
- Pressure Ratings - more than 1.5 x higher
- Self Draining - excellent self draining with PTFE lined fittings
- Non-Whistling - no whistling noise with gasses
Bioflex Ultra in Comparison with Conventional Smoothbore FEP, PFA or PTFE Lined Rubber Hose
- No Adhesives - no toxic adhesives used in the Bioflex Ultra construction, eliminating the possibilities of Process Fluid contamination in service
- Flexibility - much better flexibility
- Internal Shape Control - no distortions in bore when flexed
Bioflex Ultra in Comparison with Silicone Rubber Hose
- Hygienic Cleanability - much better, due to the non-stick PTFE Liner
- Chemical Resistance - considerably improved, particularly to strong oxidising acids and bases
- Temperature & Pressure Ratings - much higher temperature and pressure capability
- Steam Resistance - permanently resistant to steam sterilising (unlike silicone hose, which has a limited life)
Temperature vs Pressure
Due to its extremely strong construction, Bioflex Ultra has outstanding resistance to temperature and pressure, much higher than that of conventional convoluted PTFE lined hose.
Maximum Working Pressure (MWP) Variation with Temperature:
MWP for SS grade hose, also for RC, BK and SI grades are as given in the graph, BUT only within the temperature range for the particular grade of hose, as given below:
Min/Max Operating Temperatures:
Bioflex Ultra GP or AS SS -73ºC to +260ºC
Bioflex Ultra GP or AS SS,RC & SS, BK -40ºC to +150ºC
Bioflex Ultra GP or AS SS, SI -73ºC to +204ºC
Bioflex Ultra GP or AS PB - MWPs for PB are as given in the table up to 80ºC, then reduced by 50% between 80ºC and 100ºC (the maximum for PB). Min temperature -30ºC.
Temperature vs Vacuum
All sizes and grades of Bioflex Ultra hose are usable at vacuum to -0.9bar up to 200ºC (100ºC for TO grades). Above this, the vacuum resistance should be reduced 2% for every degree above 200ºC (100ûC for TO grades).
In practice, flow rates will vary with hose flexing, fluid viscosity, end fitting design and other parameters, but Bioflex Ultra hose flow rates are always around 2 times better than convoluted PTFE hose, when comparing hose assemblies with PTFE lined (non bore-restricted) end fittings.
Bioflex Ultra Hose - Flow Rate Calculation
If it is required to determine the flow rate of a particular hose assembly, or if it is required to determine the pressure required to generate a certain flow rate, then this can sometimes be approximately calculated by the Bioflex Ultra supplier.
It should be noted that calculations can only be made for fluids with a viscosity equal to water, and for hose assemblies with PTFE lined end fittings (no bore restrictions at the ends of the hose).
At Liquidyne, we prioritize our commitment to quality and consistency. In 2017 we achieved ISO 9001:2015 Quality Management System certification to ensure we can repeatedly deliver consistently high-quality products and solutions. Being an ISO 9001 facility, together with our USP Class VI Testing, ASME Bioprocessing Equipment (BPE), and EHEDG certification guarantee, we have the methodologies to assure quality. We will quickly and accurately rectify any issues if any of our products are ever in non-conformance.
"Thanks so much! What a quick turn around. It is a pleasure working with Liquidyne."
Process Development Manager
"I received the cart yesterday, thanks for the fast delivery! It feels sturdy. I sat on it. It does not bounce. It is also easy to clean and wipe or wash down."
Vice President, Analytical Development and Manufacturing
"Thanks again for reacting so quickly and meeting me halfway with the element. We will be able to get installed and have things keep moving overnight with the night crew. The little things like this are always greatly appreciated when working with Liquidyne."
“This pump cut our processing time from 3 days to 1 shift. I’m not giving this pump back. You will have to come and get it if you want it... and that won’t likely happen.”
VP Antibody Manufacturing