optimising exchange rates Valmex

OPTIMISING ExCHANGE RATES

Italian company Valmex is a market leader in the design and manufacture of heat exchangers for heating, cooling and air-conditioning. Its consistent success is based upon its dedicated mission to offer the best possible heating and cooling solutions for its diverse range of clients. Philip Yorke reports.

Valmex SpA was founded in Italy in 1999 and has since seen consistent growth thanks to its superior engineering and innovative heat exchange solutions. The company designs and manufactures heating, cooling and air-conditioning systems, cold pressed metal parts, assemblies and sub-groups, which are designed specifically for both European and international market requirements.

Today Valmex has a broad product portfolio and offers heat exchangers for domestic gas boilers, including copper heat exchangers for traditional domestic boilers, and aluminium heat recuperators for semi-condensing and fully condensing gas boilers. These products are in addition to its advanced heat exchangers for condensing boilers and mini-channel aluminium condensers.

Valmex’s broad product portfolio is sold through various sales network organisations in eastern Europe, the Baltics, Scandinavia, and the Russian federation as well as in many other overseas countries. In November 2015 Valmex became a subsidiary of MVM Investments Srl and this strategic move has enabled it to continue to increase its global presence and new product development capabilities.

Today Valmex offers a full range of specialised products and services. Its customers receive their finished products that have been created from initial concept through to design, prototyping, certification, assembly and testing, and finally on to commercial production and delivery. Currently Valmex is one of the world’s main producers of copper, aluminium and stainless steel heat exchangers for gas boilers, and is a leading supplier for heat exchangers in the industrial refrigeration market for many diverse applications. optimised parallel-flow systems

The corporate mission of Valmex is to offer the world’s manufacturers of heating, cooling and air-conditioning systems the optimal solutions for their individual client needs and applications.

In response to demands for even more efficient and increasingly reliable condensers, Valmex has developed a range of new, high-performance parallel-flow condensers for a wide range of industrial applications. These have totally replaced the traditional mechanical condensers in the automotive industry. Identical demands are being created in all heating and cooling-related industries, including those involved in commercial and industrial air-conditioning systems and industrial refrigeration markets.

The growing demand for this new kind of condenser is gathering pace as further applications are catered for by Valmex. Parallel-flow condensers are made exclusively in aluminium and brazed in the company’s state-of-the-art plant in Italy with a special brazing-weld process using a special Nocolok furnace. All the condensers’ components are braze-welded to provide unrivalled solidity and perfect conductivity characteristics.

Purpose-built performance

In keeping with its commitment to a programme of continuous improvement, Valmex has developed a new, single-purpose, integrated and compact heat exchanger that is based upon a simple stainless steel coil with a special oval section. The all-new ‘Circond’ condensing stainless steel heat exchanger is composed of a com-

bustion chamber, a condensing area and an insulated metallic disc that is protected with a silicon ceramic ‘bur’ which in turn separates the two areas of operation.

The many benefits of the new stainless steel condenser include simpler interchangeability, higher performance, greater reliability and a broad range of parameters designed to accommodate a full range of domestic applications. Further benefits of a single-coil heat exchanger include completely weld-free construction, a minimum number of moving components, a unique auto-cleaning feature, and higher overall efficiency and robustness.

New functional principles mean that the hot flue gases produced in the combustion chamber cross the first coils before the metallic disc and then travel outside towards the external casing in one simple operation. Upon detecting the high temperature of the unit the flue gas goes beyond the baffle and subsequently passes across the last coils, thus creating the low temperature heat exchange, which then pre-heats the water inlet through the condensation of the exhaust gasses. Following this process, the condensated product then drains out of the bottom of the ‘Circond’ system, whilst on the opposite side of the unit, the flue gases exit at the top of the exchanger. For further details of the latest, innovative products from Valmex visit: www.valmex.it/en

Distinctive features

The Circond range by Valmex is comprised of three models that differ from each other by the number of coil windings involved; this in turn affects the external dimensions of each one. Noticeably, one of the Circond’s most distinctive features is that the metal disc separates the combustion chamber from the condensing area and this makes the position of the disc infinitely variable. This unique feature also guarantees an optimised condensing heat exchange for each specific power unit size.

This special property affects both the flue pressure drops and the quantity of condensate that is produced, resulting in much improved heat exchanger efficiency. n