No query specified.

distributor iconLog in

BFM Fitting Frequently Asked Questions

It is not recommended. It is preferable to reduce the IG to < 2m and use the Seeflex 040AS (antistatic).

More info

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.

More info

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.

More info

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.

More info

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.

More info

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.

More info

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.

More info

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.

More info

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.

More info

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.

More info

Yes, sodium sulphate has a pH of 7 and will be suitable for Seeflex 040E.

More info

Yes – our ‘Blackout Cover’ is perfect to fit on the outside of a BFM® connector and will cut out 100% of the light.

More info

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.

More info

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.

More info

The Teflex will work on vibration, as long as the movement is not too much, too fast – 10mm is fine.

More info

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.

More info

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.

More info

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.

More info

Yes – LM4 is fine with caustic soda in concentrations of up to 5%.

More info

For standard Seeflex 040E connectors from 700mm (27.5 inches) to 1,000mm (39.5 inches) in diameter, a maximum length of 500mm (20 inches) applies. For connectors from 1,050mm (41 inches) up to the maximum of 1,650mm (65 inches) in diameter, a maximum length of 200mm (8 inches) applies. Under certain circumstances (and depending on the application) there may be a possibility for a slightly longer length, however, this would need to be discussed with BFM®.

Refer to our Quick Ref. Limitations Summary here for more information.

More info

BFM® fittings are available in many industry approved medias, and a whole range of sizes. Most of the BFM® standard range is 3A approved and conforms with FDA, EC and Atex regulations. The Seeflex 040E is used on a majority of applications, but there is also a light weight version and other application specific medias. The BFM® connector can also be manufactured with stainless steel rings, with tapers and many sizes to suit. Please ask a Distributor for more information on which connector will suit you. 

More info

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.

More info

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.

More info

The FDA do not actually specifically certify products unless manufactured and exported from the US. We are, however, FDA compliant – it is not possible to get 3A certification without FDA compliance. In essence, the FDA is a reference organisation that stipulates and classifies substances that are compliant for food and pharmaceutical use. Find out more on the FDA website.

More info

When installing the BFM® fitting you need to weld the spigots in place so that the correct Installation Gap (IG) is created for your connector length. The connector length will then depend on how much space is available for the installation, what length needs to be covered, and if there is movement. The tails of the BFM® spigot can be cut back by up to 40mm which allows flexibility to create the correct IG when installing the fittings. In most applications the best connector length is to pick a standard (stocked) item, 100mm – 200mm Long. If there is movement (such as a sifter) or an offset installation, having a longer connector is always preferable – as a rule the connector should be no less than 1.5x the diameter in these applications. The IG will need to be adjusted to allow for the movement with offset and oscillating installations, and a calculator is available to help size the IG correctly– contact BFM® for more information.  You can also check out 'Getting the Perfect Fit'.

More info

The BFM® fitting at longer lengths is more susceptible to pressure and vacuum. The larger diameter connectors also become less rigid in the spigot and there is a possibility that the large diameters with long lengths will cause problems by pulling out of the spigot.

More info

For these diameters, the minimum connector length is 150mm long. Refer to ‘BFM® Guidelines: Tapered Connectors’ information sheet for guidance.

More info

There a number of reasons the Seeflex 040E could go yellow. It could be due to use with chemicals, oils, fats or exposure to UV light. In most of these situations this is purely staining of the media, and there is no loss of strength or integrity. Please contact one of our representatives if you have any concerns. If you are using with a CIP (clean in place) solution you simply need to ensure that you thoroughly wash all the chemicals off the BFM spigot and connector before you start up again. If there is any caustic or acid left sitting on the cuff area, it will go yellow over time.

More info

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.

More info

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.

More info

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.

More info

Yes, sodium sulphate has a pH of 7 and will be suitable for Seeflex 040E.

More info

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.

More info

Yes – LM4 is fine with caustic soda in concentrations of up to 5%.

More info

There a number of reasons the Seeflex 040E could go yellow. It could be due to use with chemicals, oils, fats or exposure to UV light. In most of these situations this is purely staining of the media, and there is no loss of strength or integrity. Please contact one of our representatives if you have any concerns. If you are using with a CIP (clean in place) solution you simply need to ensure that you thoroughly wash all the chemicals off the BFM spigot and connector before you start up again. If there is any caustic or acid left sitting on the cuff area, it will go yellow over time.

More info

Yes – both CIP and manual washing is possible. Refer to the washing guidelines for Seeflex and Woven connectors.

More info

Although you can wash the FM1 Breather Bags, it is not recommended.  The media has a dust release surface which helps keep it efficient and aids dust release - washing this will deterioate it making it less effective each time it is washed.  The best method is to blow an airgun through (in reverse and not too close), use a vacuum or shake/brush any dust from the breather bag.

More info

The FDA do not actually specifically certify products unless manufactured and exported from the US. We are, however, FDA compliant – it is not possible to get 3A certification without FDA compliance. In essence, the FDA is a reference organisation that stipulates and classifies substances that are compliant for food and pharmaceutical use. Find out more on the FDA website.

More info

3A and FDA are closely linked but they are not the same

3A is a certifying process that incorporates three cornerstones:

  1. FDA – approved products
     
  2. Customer – compliance with needs
     
  3. Supplier – compliance through procedure and traceability. In order to get a 3A certificate, a company must prove to an independent assessor that its product is on the FDA-approved list of substances and that its manufacturing facilities, procedures and procurements meet strict standards.

Are BFM® fitting products FDA certified?

The FDA does not actually specifically certify products unless they are manufactured and exported from the US. We are, however, FDA compliant – it is not possible to get 3A certification without FDA compliance. In essence, the FDA is a reference organisation that stipulates and classifies substances that are compliant for food and pharmaceutical use. View more information on the FDA website.

Do BFM® fitting products have 3A certification?

We have 3A certifications for the plastic used in Seeflex connectors and certification for the BFM® fitting connector and spigot. The BFM® fitting range meets the design framework for hygiene and safety. There are also a large number of other administrative and traceability requirements that must be met, making conformance with 3A a far better indicator of our quality. View BFM® fitting 3A certifications.

The 3A certificates prove BFM® fitting FDA compliance. The FDA does not specifically certify products unless manufactured and exported from the US. In essence, the FDA is a reference organization that stipulates and classifies substances that are compliant for food and pharmaceuticals.

How can BFM® fitting help you meet your regulatory compliance?

BFM® fitting has a wide variety of products that conform to important global standards such as 3A, USDA, FDA, EC & ATEX. We work closely with many global manufacturing companies to test and create products that can solve factory problems.


View our Certifications Explore the BFM® fitting difference

More info
The EN779 classifications are a standard for ventilation filters. These are intake filters on building, in hospitals and the like. Breather bags are made from a dust filter media, which are tested and specified differently. For this reason we cannot report on an unrelated classification. However, for a rough comparison, then the FM1 is 97% efficient @ 3microns, or F7. If the airflow or pressure is low the efficiency will increase. This then depends on surface area, particle size and type etc. More info

No – BFM® Global Ltd certifies that in the manufacturing of our products we do not intentionally use any of the below mentioned substances and it is not foreseen that they could be produced: Bisphenol-A (BPA) Bis (2-ethylhexy) phthalate (DEPH) Dibutyl Phthalate (DBP) Benzyl Butyl Phthalate (BBP). Refer to our Seeflex Safety Declaration for more information.

More info

Seeflex 040E is a synthetic organic material that does contain substances derived from tallow sources. Our suppliers have assured us that processing conditions used in the production of this tallow derivative product are in compliance with the minimum conditions described below for the processing of rendered fats listed in Annex XIII, Chapter XI of the EU Regulation 142/2011/EC, and the Notes for Guidance EMA/410/01 Rev 3. Additionally, this tallow derivative product is compliant with the U.S. Food and Drug Administration regulations regarding the use of prohibited cattle materials in food (21 CFR § 189.5) and cosmetics (21CFR § 700.27), as prohibited cattle materials do not include tallow derivatives.

More info

No, to the best of our knowledge, BFM®'s material suppliers do not use or intentionally incorporate any of the following agents into the Seeflex 040E, 040As or 020E that we use for production of our connectors:

  • Bisphenol-A (BPA)
  • Bis (2-ethylhexy) phthalate (DEPH)
  • Dibutyl Phthalate (DBP)
  • Benzyl Butyl Phthalate (BBP) or any other Phthalates
  • Cyanuric Acid
  • Latex
  • Melamine
  • Nonylphenols
  • Oleamide
  • Silicone

 

Please refer to the Seeflex Materials Safety Declaration.

More info

Yes - BFM® fitting has been approved as Halal certified manufacturer.  See our letter of approval here.

More info

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.

More info

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.

More info

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.

More info

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.

More info

The FDA do not actually specifically certify products unless manufactured and exported from the US. We are, however, FDA compliant – it is not possible to get 3A certification without FDA compliance. In essence, the FDA is a reference organisation that stipulates and classifies substances that are compliant for food and pharmaceutical use. Find out more on the FDA website.

More info

3A and FDA are closely linked but they are not the same

3A is a certifying process that incorporates three cornerstones:

  1. FDA – approved products
     
  2. Customer – compliance with needs
     
  3. Supplier – compliance through procedure and traceability. In order to get a 3A certificate, a company must prove to an independent assessor that its product is on the FDA-approved list of substances and that its manufacturing facilities, procedures and procurements meet strict standards.

Are BFM® fitting products FDA certified?

The FDA does not actually specifically certify products unless they are manufactured and exported from the US. We are, however, FDA compliant – it is not possible to get 3A certification without FDA compliance. In essence, the FDA is a reference organisation that stipulates and classifies substances that are compliant for food and pharmaceutical use. View more information on the FDA website.

Do BFM® fitting products have 3A certification?

We have 3A certifications for the plastic used in Seeflex connectors and certification for the BFM® fitting connector and spigot. The BFM® fitting range meets the design framework for hygiene and safety. There are also a large number of other administrative and traceability requirements that must be met, making conformance with 3A a far better indicator of our quality. View BFM® fitting 3A certifications.

The 3A certificates prove BFM® fitting FDA compliance. The FDA does not specifically certify products unless manufactured and exported from the US. In essence, the FDA is a reference organization that stipulates and classifies substances that are compliant for food and pharmaceuticals.

How can BFM® fitting help you meet your regulatory compliance?

BFM® fitting has a wide variety of products that conform to important global standards such as 3A, USDA, FDA, EC & ATEX. We work closely with many global manufacturing companies to test and create products that can solve factory problems.


View our Certifications Explore the BFM® fitting difference

More info

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.

More info

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.

More info

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.

More info

The smallest gap you can have between the BFM® spigots is 65mm (2.5") for an 80mm (3") long BFM® connector. Note that this gap may not be suitable for frequently changed connectors or for those with more than just a slight vibratory movement. Please also take some time to read the fitting instructions on the BFM® spigots page.

More info

The BFM® Spigots come in a range of exact sizes, eliminating the imprecise nature of current connector widths and ensuring a perfect fit with the BFM® connector. You choose the spigot that closely matches your pipe size. Check out Getting the Perfect Fit  for more information.

More info

The Teflex will work on vibration, as long as the movement is not too much, too fast – 10mm is fine.

More info

It is possible, however, Morris couplings need straight length equivalent to 1 1/2 times coupling length, so there would need to be enough space to fit this. You would want at least an inch of the spigot to remain to get enough clamping area.

More info

When installing the BFM® fitting you need to weld the spigots in place so that the correct Installation Gap (IG) is created for your connector length. The connector length will then depend on how much space is available for the installation, what length needs to be covered, and if there is movement. The tails of the BFM® spigot can be cut back by up to 40mm which allows flexibility to create the correct IG when installing the fittings. In most applications the best connector length is to pick a standard (stocked) item, 100mm – 200mm Long. If there is movement (such as a sifter) or an offset installation, having a longer connector is always preferable – as a rule the connector should be no less than 1.5x the diameter in these applications. The IG will need to be adjusted to allow for the movement with offset and oscillating installations, and a calculator is available to help size the IG correctly– contact BFM® for more information.  You can also check out 'Getting the Perfect Fit'.

More info

Because the stainless steel spigot will not directly weld to aluminium, another technique will need to be used, such as welding a flange to the spigot and then attaching by bolt or rivet to the pipe or using a Morris coupling to attach the spigot to the existing aluminium pipe.

More info

Square-to-round transition adaptations are easily achieved - see examples below:

More info

We have currently tested a single Pneumatic Monitoring System on spigots up to Ø350mm.  For spigots Ø400mm and over, we advise installing additional sensors. Please contact BFM® Global for specific recommendations on this. 

More info

For standard Seeflex 040E connectors from 700mm (27.5 inches) to 1,000mm (39.5 inches) in diameter, a maximum length of 500mm (20 inches) applies. For connectors from 1,050mm (41 inches) up to the maximum of 1,650mm (65 inches) in diameter, a maximum length of 200mm (8 inches) applies. Under certain circumstances (and depending on the application) there may be a possibility for a slightly longer length, however, this would need to be discussed with BFM®.

Refer to our Quick Ref. Limitations Summary here for more information.

More info

The smallest gap you can have between the BFM® spigots is 65mm (2.5") for an 80mm (3") long BFM® connector. Note that this gap may not be suitable for frequently changed connectors or for those with more than just a slight vibratory movement. Please also take some time to read the fitting instructions on the BFM® spigots page.

More info

Yes – there are two options for high temperatures: our Teflex NP (non-permeable) material can handle 300ºC / 572ºF, and surges of up to 316ºC / 600ºF.  Our other pure-Teflon material, Teflex, can handle 260ºC / 500ºF as an operating temperature (and surges up to 280ºC / 536 ºF). It is a permeable material but is woven quite tight.  

More info

It is not recommended. It is preferable to reduce the IG to < 2m and use the Seeflex 040AS (antistatic).

More info

The BFM® fitting at longer lengths is more susceptible to pressure and vacuum. The larger diameter connectors also become less rigid in the spigot and there is a possibility that the large diameters with long lengths will cause problems by pulling out of the spigot.

More info

No - all of our spigots are manufactured with the same thickness of steel - 2mm. The 100mm BFM® spigots are sized to fit standard tube which is measured externally, all other BFM® spigot diameters are measured internally to accommodate nominal bore standard pipe.

More info

For these diameters, the minimum connector length is 150mm long. Refer to ‘BFM® Guidelines: Tapered Connectors’ information sheet for guidance.

More info

100mm (4"): 0.10 bar 150mm (6"): 0.07 bar 200mm (8"): 0.06 bar 250mm (10"): 0.06 bar 300mm (12"): 0.02 bar

More info

The wire used for the rings and Kevlar/Blackout cover holders is 6mm 304g stainless steel with a tensile strength of approximately 800MPa.

More info

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.

More info

There a number of reasons the Seeflex 040E could go yellow. It could be due to use with chemicals, oils, fats or exposure to UV light. In most of these situations this is purely staining of the media, and there is no loss of strength or integrity. Please contact one of our representatives if you have any concerns. If you are using with a CIP (clean in place) solution you simply need to ensure that you thoroughly wash all the chemicals off the BFM spigot and connector before you start up again. If there is any caustic or acid left sitting on the cuff area, it will go yellow over time.

More info

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.

More info

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.

More info

Yes – our ‘Blackout Cover’ is perfect to fit on the outside of a BFM® connector and will cut out 100% of the light.

More info

Yes – there are two options for high temperatures: our Teflex NP (non-permeable) material can handle 300ºC / 572ºF, and surges of up to 316ºC / 600ºF.  Our other pure-Teflon material, Teflex, can handle 260ºC / 500ºF as an operating temperature (and surges up to 280ºC / 536 ºF). It is a permeable material but is woven quite tight.  

More info

Yes – Seeflex 040E is one of the strongest flexible connector materials available with abrasion and tear resistance in both directions. This extra strength in comparison to other materials means it does not need to be as thick, whilst offering greater flexibility.

More info

No – BFM® Global Ltd certifies that in the manufacturing of our products we do not intentionally use any of the below mentioned substances and it is not foreseen that they could be produced: Bisphenol-A (BPA) Bis (2-ethylhexy) phthalate (DEPH) Dibutyl Phthalate (DBP) Benzyl Butyl Phthalate (BBP). Refer to our Seeflex Safety Declaration for more information.

More info

Seeflex 040E is a synthetic organic material that does contain substances derived from tallow sources. Our suppliers have assured us that processing conditions used in the production of this tallow derivative product are in compliance with the minimum conditions described below for the processing of rendered fats listed in Annex XIII, Chapter XI of the EU Regulation 142/2011/EC, and the Notes for Guidance EMA/410/01 Rev 3. Additionally, this tallow derivative product is compliant with the U.S. Food and Drug Administration regulations regarding the use of prohibited cattle materials in food (21 CFR § 189.5) and cosmetics (21CFR § 700.27), as prohibited cattle materials do not include tallow derivatives.

More info

Yes, you can definitely reuse them - typically companies will use them until they start to show a little wear.

More info

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.

More info

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.

More info

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.

More info

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.

More info

Yes, you can definitely reuse them - typically companies will use them until they start to show a little wear.

More info

The BFM® fitting at longer lengths is more susceptible to pressure and vacuum. The larger diameter connectors also become less rigid in the spigot and there is a possibility that the large diameters with long lengths will cause problems by pulling out of the spigot.

More info

The wire used for the rings and Kevlar/Blackout cover holders is 6mm 304g stainless steel with a tensile strength of approximately 800MPa.

More info

Although we have tested the TR version of the BFM® Seeflex fittings under vacuum to over 0.8 bar vacuum, we would not recommend a Seeflex connector for that much pressure (refer to the ‘BFM® Limitations: Negative Pressure’ document). However, depending on the length of the connector and the type of vacuum (i.e. will it be gradual increases, is it continuous, is it sudden and/or occasional) it may be possible with the insertion of rings in the connector. The length is the most critical element as greater lengths will cause the walls to suck in further, potentially placing them in the product flow increasing likely abrasion. If having a non-transparent connector is an option, the LM4 connector is a good option. Because it is a woven fabric, the LM4 will suck in outside air which is filtered through the material.

More info

We have currently tested a single Pneumatic Monitoring System on spigots up to Ø350mm.  For spigots Ø400mm and over, we advise installing additional sensors. Please contact BFM® Global for specific recommendations on this. 

More info

Although we have tested the TR version of the BFM® Seeflex fittings under vacuum to over 0.8 bar vacuum, we would not recommend a Seeflex connector for that much pressure (refer to the ‘BFM® Limitations: Negative Pressure’ document). However, depending on the length of the connector and the type of vacuum (i.e. will it be gradual increases, is it continuous, is it sudden and/or occasional) it may be possible with the insertion of rings in the connector. The length is the most critical element as greater lengths will cause the walls to suck in further, potentially placing them in the product flow increasing likely abrasion. If having a non-transparent connector is an option, the LM4 connector is a good option. Because it is a woven fabric, the LM4 will suck in outside air which is filtered through the material.

More info

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.

More info

Although we have tested the TR version of the BFM® Seeflex fittings under vacuum to over 0.8 bar vacuum, we would not recommend a Seeflex connector for that much pressure (refer to the ‘BFM® Limitations: Negative Pressure’ document). However, depending on the length of the connector and the type of vacuum (i.e. will it be gradual increases, is it continuous, is it sudden and/or occasional) it may be possible with the insertion of rings in the connector. The length is the most critical element as greater lengths will cause the walls to suck in further, potentially placing them in the product flow increasing likely abrasion. If having a non-transparent connector is an option, the LM4 connector is a good option. Because it is a woven fabric, the LM4 will suck in outside air which is filtered through the material.

More info

The BFM® fitting at longer lengths is more susceptible to pressure and vacuum. The larger diameter connectors also become less rigid in the spigot and there is a possibility that the large diameters with long lengths will cause problems by pulling out of the spigot.

More info

100mm (4"): 0.10 bar 150mm (6"): 0.07 bar 200mm (8"): 0.06 bar 250mm (10"): 0.06 bar 300mm (12"): 0.02 bar

More info

Copyright © 2022 BFM® Global

BFM® Fitting is a trademark of BFM Global Ltd.

Privacy Policy

Performance website by unfld