EXHIBITIONS
India, China and South Africa offer a lot of potential, even despite economic growth slowing down in the five emerging markets in the last few years. The outlook is nonetheless positive, as sales are expected to grow in the respective countries. “The role of the pharmaceutical markets in the BRICS states will continue to increase for the pharmaceutical industry,” emphasises the BPI.
Life expectancy is growing The BPI sees several reasons for the continued growth of the pharmaceuticals market: “To date, many diseases are unresponsive to therapy; life expectancy of people is on the rise and the changed consumer interest, as well as the search for more quality of life, increases demand for health-related services and products”.
A further important market for manufacturers and dealers of stainless steel valves is the food industry. While profitable, development of sales isn’t positive worldwide. Germany serves as an example. Here, turnover in March 2016 decreased by 3.1 percent compared to the same period a year earlier. The mid-term business outlook of the sector for 2016 is quite restrained, at least according to the Federation of German Food and Drink Industries (BVE). Last year, sales contracted, and a seen to remain flat in 2016. Several reasons speak for
the restrained expectations in Germany. “Uncertainties and increased pressure on earnings are growing for the food industry,” explains Laura Busch, a consultant at the BVE. Higher labour costs, increased demand for skilled workers, as well as the growing demands of consumers for quality and sustainability are the greatest concerns of companies this year, according to a survey of the federation. “The increasing market concentration and consolidation in the food industry and consumers’ need for information of origin and production methods are further
burdens, as well as high prices and scarcity of resources, and more and more regulation and red tape”.
Pharmaceutical valvesa role model Despite all of this, the consumer climate in Germany is “better than in the European neighbour states,” states the BVE. German consumers are prepared to spend more on higher quality products. Even though the food industry serves a rather sensitive market, it is a very large market that requires scores of stainless steel valves. After all, worldwide demand for foodstuffs is growing, owing to the fact the worldwide population will grow from currently 7.1 billion people to 9.1 billion people in the year 2050. Both the pharmaceutical and food industry increasingly have the same requirements for valves. Based on requirements continuing to rise, experts believe valves used in food production will be comparable to valves used in pharmaceutical plants. An important role in
the sanitisation process in food production and drug manufacturing is the principle of steam drying in clean rooms. “Under this process, the components to be dried are exposed to steam which is generated from distilled water and must be as free as possible from condensate,” explains Mankenberg. A liquid separator separates the condensate from
the steam under operating pressure, using the centrifugal principle. The interaction between high temperatures and the highly reactive pure water quickly leads to intergranular corrosion, which is also called intergranular attack. The company therefore uses a low-carbon stainless steel, “which ensures a high corrosion resistance in the event that very aggressive media are separated”.
Controlling steam pressures For a more complex manufacturing process numerous pressure control valves are required. In the food industry, beverages are often enough aerated. Carbon dioxide is supplied as a fluid, due to high pressure. It becomes gaseous again when depressured. Here, pressure reducing valves are necessary to achieve the change in state.
Pressure reducing valves allow the controlled vaporisation of fluid carbon dioxide coming from cylinder batteries, thereby creating gas. The gas won in the process is used to aerate mineral water. “A valve should have a high flow coefficient for CO2 pressure reduction,” states Mankenberg, “as the regulator could freeze over due to thermal expansion. The valve would basically freeze up“. In drug manufacturing and food production, valves are responsible for a large number of functions such as mixing, separating, discharging, feeding or cleaning, and nearly all of these
are sterile processes. This is why Gemü places its bets on multiport valve blocks. Residual volume has to be low, and there may be no internal welds. Stainless steel is the preferred material. Trend towards heat sterilisation When developing valves for the
pharmaceutical and food industry, manufacturers need to make sure dead space, cavities and gaps are eliminated, otherwise there is a risk of corrosion and bacterial growth. Various types of valves are
used, ranging from shut-off and control valves to diaphragm valves, butterfly and safety valves. Both the pharmaceutical and food industries are increasingly replacing cold sterilisation with heat sterilisation, a development requiring manufacturers to take note. Seals need to be designed to deal with higher cleaning temperatures.
The individual requirements of customers and the versatility of stainless steel, for instance in handling critical media in food production and drug manufacturing, have seen Berluto expand its stainless steel business. The company therefore now offers numerous different float valves made from stainless steel. And Berluto is not an isolated case.
Focus on specialists Spending money here will bring a return on investments for the valve industry. There is no doubt that the requirements for components to be used in the pharmaceutical and food industry will continue to rise, just like the global population. Stainless steel valves will increasingly be in the limelight. The stage is set for companies specialised in such products.
Press Contact Valve World Expo 2016 Petra Hartmann-Bresgen, M.A. Ulrike Osahon Tel.: +49 (0)211 4560-541 Fax: +49 (0)211 4560 87 541 E-Mail: HartmannP@messe-
duesseldorf.de
www.internationalmetaltube.com IMT September 2016 37
Source: GEMÜ/Krones
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