Assentech has an enviable reputation for delivering quality at a competitive price. When dealing with Assentech , you can be assured that our expertise and devotion to quality will translate into efficiency and safety and our every effort will demonstrate our commitment to provide quality products, innovative solutions and comprehensive services.

IFR‘s are fitted for one reason- to stop vapours leaking to the atmosphere. Tank inspection periods run from between 10 years and up to 20 years in some industries so Why do operators buy cheap IFR’s that only Seal efficiently for 3-5 years?. Our stainless steel shoe seals IFR’s  last for at least 25 years. We feel that our fitted IFR’s give the best life cycle cost through sound engineering solutions.

Here are Some of the many design problems that exist in other well-known IFR brands and How Assentech and Matrix Applied Technologies IFR’s overcome them

The picture above shows the following common problem:

Most IFR brands use Decking sheeting 0.50mm, Frequently we have found that damage to thin sheeting has occurred when workmen have been working on the IFR.

 Assentech and MATRIX Applied Technologies Internal Floating Roofs (IFR’s)

API 650 Appendix H used to specify a minimum deck sheeting thickness of 0.46mm (0.018”). This was recently increased to a minimum of 0.51mm (0.020”). A Lot of IFR brands on the market design the sheet based on 0.51mm but over 25 Experience shows that this is still too thin. Sheeting can corrode over the years depending on ambient air moisture levels.

Because we design our product to last and withstand the most extreme conditions Matrix Applied Technologies uses 0.6mm (0.024”) sheet as standard, with other thicknesses available on application. We believe that 0.6mm sheet offers a reasonable compromise between cost, weight & strength

The picture above shows the following common problems:

• Conventional IFR Structure showing rim and parallel main beams running at 90º to the pontoons.
• Pontoons are connected to the rim and to each other end-to-end.
• Landing legs are located at the pontoon end connections.
• Typical sheeting tears on conventional IFR’s having the legs connected to the pontoons
• Pontoon end cracking caused by flexing during operation, this is caused by landing on uneven tank floors or tank turbulence

 Assentech and MATRIX Applied Technologies Internal Floating Roofs (IFR’s)

Our Heavy Duty IFR has a proper frame, with regularly spaced cross beams; legs are connected to the frame & not to the pontoons. This eliminates the likelihood of pontoon end cracking (Pontoon end cracking is a common phenomenon with conventional design IFR’s due to in-tank turbulence).

In our Heavy duty IFR’s, main beam-to-rim connections are made so that the top of the main beam is flush with the top of the rim. This allows proper sheet clamping right to the rim. Most lightweight IFR designs run the main beams under the rim flange and then bolt to the rim. This does not allow proper sheet clamping at the rim.

The picture above shows the following  problem:

Landing leg without insulating leg pad inserts can result in electrolysis between dissimilar metals (aluminium leg to steel floor). Additionally, the leg design shown, (if there is a seal between the leg & floor) could result in some flammable liquid retained in the leg, which would be dangerous in the event of hot-work in the tank.

 Assentech and MATRIX Applied Technologies Internal Floating Roofs (IFR’s)

landing leg always installed with insulating leg pad inserts

The picture above shows the following common problem:

Weak sheet metal rim means rim distortion, rim leg movement, sheeting damage and also mean the rim cannot support an IFR Shoe Seal.

 Assentech and MATRIX Applied Technologies Internal Floating Roofs (IFR’s)

Our IFR’s design uses Extruded Rims: The Heavy duty rim we use in our IFR’s is better able to resist deformation caused by wave action in the tank. Frequent wave action occurs in the tank due to turbulence caused by pumping, use of gas mixers and gas slugs. These events especially gas slugs have been known to cause serious damage to lightweight sheet metal IFR rims. Having an Extruded Rims allow easy fitment of shoe seal without rim reinforcement

ASSENTECH SUPPLY, INSTALL AND SERVICE A FULL RANGE OF STORAGE TANKS AND FLUID TRANSFER EQUIPMENT IN THE UK AND EUROPE.

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