Flex coil a/s


Expert guidance

Flex coil a/s was founded in 1992 by a team of four colleagues who for several years had been specialising in all types of heat exchangers for cooling, heating and ventilation.
Today Flex coil supplies coils in all sizes and virtually all material combinations in accordance with the needs, wishes and requirements of customers. In addition, its experts are always on-hand to provide advice and guidance on topics such as relevant materials, sound specifications, assembly, and operating and maintenance instructions for products.

The products available from Flex coil include dry coolers/condensers, coils, condenser/evaporator coils, electric heaters, standard stocked coils and special products (CO2 coolers,titanium heat exchangers, unit coolers, stainless steel heat exchangers and FSA steam coils).

The titanium coils available from the company are ideal for the offshore market, and in fact, Flex coil has delivered fan coils for the offshore industry for the past 15 years. The products delivered are condensers, evaporators, heating and cooling coils fitted with fans. The choice of materials for offshore installations is vital for the equipment’s longevity, and Flex coil is one of the leading suppliers of titanium heat exchangers for harsh environments that demand extra durable products.

FC 7 2013 bAccording to Flex coil, the maritime environment is one of the reasons for short lifetime when inappropriate materials are used. When it comes to fins, when corrosion begins, the fins exhibit reduced heat transfer and thus a lower efficiency of the coil. Tests conducted in a salt spray chamber confirmed that a pretinned copper fin gives superior resistance to corrosion.

Moving onto the coil tubes, in addition to being resistant to maritime atmospheres, they must also be resistant to the medium inside the tubes. For condensers, evaporators and heating coils it is sufficient to use pretinned copper or CuNi alloys. For seawater cooling coils however, it can be problematic finding materials. Previously, experts recommended CuNi alloys, and then SMO took over as the best material. However, Flex coil has trialled materials in a salt spray chamber and reached the conclusion that titanium is the most resistant material for this environment.

As a unit’s casing and the fan coil will also be exposed to a maritime atmosphere, Flex coil uses corrosion resistant steel with extra strengthening in the most exposed points in their construction.

Finally, when selecting fans/motors, Flex coil uses special software to design and ensure good quality and also to optimise the fan selection. Zone definition, temperature and type of protection will dictate the type of motor as well as materials for the fan unit.

Of course, alongside titanium, Flex coil also utilises a number of other materials in the manufacture of its products, including stainless steel, aluminium, copper, AIMg and galvanised steel in a variety of options. It is this flexibility to be able to supply coils in accordance with the needs of the customer that makes the company such an attractive partner. Optimal project solutions are adopted in all cases and customers benefit automatically from Flex coil’s expertise in the areas of thermo, aero and hydrodynamics and acoustics.

Flex coil also guarantees the thermal performance of its equipment (as shown on the performance datasheets) when the equipment is installed in accordance with good engineering practice. If after installation and start-up there is any question regarding thermal performance of the equipment, Flex coil will send its engineers – at the owner’s request – to the jobsite to conduct a performance test. This test may be observed by the owner and the consulting engineer or by their authorised representatives. If the results of the evaluation show the equipment to be deficient, Flex coil will make the necessary repairs or alterations to correct the deficiency. If the equipment is found to be performing in accordance with the performance datasheets, the owner is expected to reimburse the company for its costs associated with this performance test.

As an ISO 9001 company, Flex coil prioritises quality, and it also works actively for long-term, sustainable development that respects both people and the environment. Accordingly, it continuously optimises its activities in order to prevent or minimise any adverse impact on the environment and health and safety in the workplace. This is done by using sustainable, energy efficient and recyclable materials, by an open dialogue and through close co-operation with customers and other stakeholders.

Today Flex coil is a wholly owned subsidiary of EVAPCO inc. Since it was founded in 1976, EVAPCO Inc. has become an industry leader in the engineering and manufacturing of quality heat transfer products around the world. Its mission is to provide first class service and quality products.

EVAPCO is an employee-owned company with a strong emphasis on research and development and modern manufacturing plants. EVAPCO has earned a reputation for technological innovation and superior product quality by featuring products that are designed to offer the following operating benefits:

  • Higher system efficiency
  • Environmentally friendly
  • Lower annual operating costs
  • Reliable, simple operation and maintenance

With an ongoing commitment to research and development programmes, EVAPCO provides the most advanced products in the industry – and prides itself on manufacturing technology for the future, and making it available today.

Flex coil
Products: Coils in all sizes


Flex coil a/s