Seeflex 040E can be used outdoors. It has been proven for use in both the sun and the water. Extended exposure to UV will cause the Seeflex 040E to turn a little yellow, but the media will not lose any strength or integrity.
If the contact with the ethanol is permanent the Seeflex 040E is not suitable. If it is sporadic and low temperature then you should have no problem. You may need to run a few tests on the media to check the suitability, as it will depend on time and temperature of contact with the solvent and the application. Please contact one of our representatives to discuss this further.
Seeflex 040E is very strong and has been used with sugar, crystallized lactose, aggregates etc. Installing with an internal flow correction system is an additional way to further improve the system and avoid undue abrasion.
Yes, although the fat may stain Seeflex 040E, and cause it to go a little yellow, the strength of the media will not be affected greatly.
Yes, although the BFM® fitting is designed to provide a 100% seal on powder applications, we do not make this statement with liquid. The Seeflex 040E works very well and is used in a number of applications, although there may also be the occasional very small leak (drips). The composition of the liquid would also need to be checked to ensure compatibility with Seeflex.
Between 3 and 9 pH is generally acceptable, and outside this it is largely dependent on concentration, application and duration of contact. It’s important to remember that the pH scale alone doesn’t specifically help determining resistance of the materials – the pH scale will provide an indication of the strength, but product type, concentrations and temperatures are far more important. Our woven Teflex is an excellent alternative for use with acids or alkalis. This is a pure PTFE media which can be used on most products and up to very high temperatures. It is best to double check with us if there are any concerns regarding media compatibility.
The resistance of the connector materials to chemicals is very dependent on the strength (concentration) of the chemical, the process and how the system is maintained (cleaned). The LM4 is a 100% Polyester woven fabric so its capability with either chemical is limited. Seeflex 040E is also limited with these chemicals – it is important to know the concentrations and the application. Teflex is the optimum material for use with chemicals as it is resistant to acids.
It depends on the type of oil. Some oils are very aggressive and would degrade the polyurethane and the tight seal of the spigot connections can also be adversely affected by oils.
Yes, Seeflex 040E is used by many companies around the world who regularly use nitrogen to purge lines with no problem.
It should be noted, however, that we have not undertaken gas leak testing to a specified industry leak rate standard. We have completed air leak testing (a 600mm connector held a low vacuum pressure for more than 10 minutes).
The BFM® is not certified or recommended for gas sealing in safety of life or mission critical applications.
Yes, sodium sulphate has a pH of 7 and will be suitable for Seeflex 040E.
Yes – our ‘Blackout Cover’ is perfect to fit on the outside of a BFM® connector and will cut out 100% of the light.
A Seeflex 040E with rings will be more resilient to the vacuum than the Flexi. You could also use TR for extra resistance. Try and keep the connector as short as possible, and small gaps between rings.
There are Seeflex 040E fittings running through a number of metal detectors around the world with no problem. Metal detectors have an arc in which there can be no metal, you just need to ensure the spigots are welded outside of this arc (ie. welded to the pipe both above and below the metal detector). The BFM® connector then runs right through the metal detector. In the very unlikely event Seelfex 040E were to have any problems with false results, then the Seelfex 040AS could be used without issue. The metal detector specs will often tell you what ohm resistance the material needs to be within, you could check these.
The Teflex will work on vibration, as long as the movement is not too much, too fast – 10mm is fine.
This will depend somewhat on what is in the laundry soap. In general the Seeflex 040E will work well. There is often Sodium Carbonate or Sodium salt which may start to break down the Seelfex over an extended period. Unilever in New Zealand run the BFM® fitting on soap product without issue.
We have BFM® fitting running with coffee in a number of plants around the world. There is no difference in terms of connector life than any other general application, it will depend on the conditions. There have been no problems with oils from coffee affecting the media.
Yes – LM3 is perfect for this application as it can operate comfortably down to -70 degrees C (-94 degrees F). However, we recommend a separate FM1 Breather Bag installed elsewhere in the system to handle the breathing/venting of the air. In other words, although the LM3 is air permeable, it needs to act as a connector, otherwise it may become clogged.
Yes – LM4 is fine with caustic soda in concentrations of up to 5%.