Aluminium Covers Convincing covering devices for storage tanks
in Vapour Control Customers in 80 Countries 100 years of experience
in Aluminium Over 4,000 References 500,000 m³ of saved valuable product every year
Our unique range of products focusing on tank equipment provides optimum solutions worldwide.
Complete service from one and the same source for the construction of new or the retrofitting of existing systems.
Tank systems need to meet a whole variety of different demands. If your requirements involve round tanks, you will definitely benefit from the products and solutions we have developed. Our tank covers and accessories protect stored products against contamination while minimizing evaporation. Thus our tank equipment proves a real money-saver as well as making a decisive contribution to preserving the health of your personnel and the environment. We provide individual solutions from one and the same source, a complete service that covers consultation and advice, technical design, production and assembly. It goes without saying that our products conform to all international standards.
Description of Internal Cover Floating Roof (VaconoDeck) :
Lightweight internal floating cover made of aluminium and/or stainless steel to limit the emissions which occur where volatile hydrocarbons are stored in fixed roof tanks.
The VACONODECK is a light-weight compact internal
floating deck made of high-quality aluminium, stainless
steel or from a combination of the two materials, to be
used inside a fixed roof tank for the storage of volatile
hydrocarbons. The system is designed as a pontoon construction
floating on the stored product and functions as a gas
barrier thereby reducing vapour losses by 95%. The system
thereby not only ensures a substantial increase in tank
operation profitability but also protects the atmosphere
thereby making an effective contribution towards the elimination
of environmental pollution.
||Very short "Payback"
Each VACONODECK is individually designed and
tailor-made to fit the corresponding tank in compliance
with the national and international industrial standards,
such as API 650 App. H, TRbF 120 or BS 2654 App. E, which
are observed within the petroleum and chemical industries.
The VACONODECK owes its perfect fit in part to its customised,
extruded peripheral profile that guarantees a constant
distance of 190 mm between the floating deck and the internal
wall of the tank. This increases the efficiency of the
sealing systems which have been especially developed for
the VACONODECK to seal off the annular space. The application
of light-weight sealing materials permits the minimisation
of evaporative loss. It goes without saying that all the
materials used have been carefully selected in accordance
with the aspects of quality, duration and compatibility
with the products to be stored.
Maximum tank capacity
The use of 8" diameter ( 10" diameter for
stainless steel or stainless steel / aluminium VACONODECKS
) with a maximum length of 5600 mm, each individually tested
under pressure in the workshop, guarantees an equal displacement
of buoyancy under the entire area of the VACONODECK. A 100%
reserve buoyancy being warranted for, should an individual
float fail during operation no significant reduction in buoyancy
||Further the application of 8"
floats together with the special prefabricated peripheral
profiles ensures for a low construction thereby guaranteeing
minimal loss of tank capacity. If a tank is taken out
of operation for inspection maintenance and/or repair,
an optimum in the number of deck supports provides for
a uniform distribution of the specific weight and further
guarantees for its passability by personnel over its entire
||Long service life
In addition to high rigidity and stability warranted
through its design and construction, the long service
life of the floating cover is further ensured through
the excellent corrosion resistance exhibited by the materials
selected. A unique feature of the VACONODECK is the use
of "cladded" deck sheets. These sheets are coated
on both sides with a special aluminium alloy containing
zinc which prevents the perforation of the panel by localised
pitting. This form of corrosion can occur as a result
of an electrolytic reaction of the water condensate in
connection with rust particles falling from the roof and
walls of the tank onto the floating deck.
The unique VACONODECK construction is practically maintenance-free
due to the unique design.
The VACONODECK is designed as a modular system
which can be easily erected on site by local crews on
compliance with the provided erection documents - our
specialists can supervise the on-site erection worldwide,
if this is required. All components, especially the floats,
profiles and clamp bars as well as the metal sheets are
prefabricated in Rheinfelden, ensuring simple, rapid and
economical erection and also the high quality of this