VALVE WORLD


with high temperatures, high pressure levels and critical fluids. Here, materials play a major role, for instance, diaphragm valves for the chemical industry. Gemü has focused on coming to grips with this task. Diaphragm valves, which are especially suited for aggressive media, can be precisely matched with different materials to the operating media, the company explains. In addition, diaphragm valves can be made using high tech plastics such as PFA or PVDF. This combines the media resistance of plastics with the robustness of diaphragm valves. Such flexibility in materials ensures the highest degree of process and plant safety, plus offering optimal, customer- specific solutions. Customer specific solutions are a very important phrase in the chemical industry. Valve series should be developed in close coordination with leading chemical companies, explains Samson, and


TUBE 2014


diversity is demanded. As a main valve vendor, Samson supplies light and heavy-duty valves, in modular design, and made of all common materials and exotic alloys according to DIN, ANSI and JIS to high-pressure valves complying with important company standards for the chemical industry. This is why forged bodies, live-loaded packings, metal bellows, pressure-balanced


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plugs, heating jackets as well as corrosion-resistant, low-noise and low-wear valve trims are included in the company’s product range.


Protecting man and environment Leser is a company striving to fulfill that very goal, and have developed their type 441 safety valve to reduce emissions. The valve is employed


in plants handling phosgene, hydrogen sulphide and hydrosilicon. It is composed of a stainless steel bellows, special gaskets and additional seals with o-rings. It includes a lift indicator to monitor pressure and the operating status. Companies developing such valves for the chemical industry will still find lucrative business opportunities – especially in the emerging markets. Three years ago, 45% of the worldwide chemicals turnover were centred in the Asian states, followed by Europe with around 25% and the USA with 20%. Things are continuing to develop in that direction. Asia, and especially China, is a global chemical power, and a market which can be served best locally, at least according to some companies. More and more companies are


being driven into emerging markets by the huge potential on offer. Many new plants are being constructed, these often the subsidiaries of European manufacturers - Lanxess


International Metal Tube


IMT International Metal Tube


The leading independent magazine for metal tube & pipe producers and processors


Magazine and Digital Versions published 6 times a year. To subscribe visit our website: www.internationalmetaltube.com


www.internationalmetaltube.com IMT February/March 2014 29


photo by Messe Dusseldorf


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