The diaphragm valve is practically the all-rounder among the valves; it can be used for countless applications in all industrial sectors. One of its major advantages is that only two components come into contact with the working medium – the diaphragm and the valve body. In the closed position, the diaphragm is pressed onto the sealing weir of the valve body and can therefore shut off up to 10 bar operating pressure. The media wetted inner geometry is designed to keep flow turbulences as low as possible, and there is almost no opportunity for product deposits or sediment, which means that it is very easy to clean. The diaphragm valve is known for its "minimal deadleg" valve type. The EHEDG certified diaphragm sealing system makes it ideal for use in the food and beverage industries, as well as for the biotechnology and pharmaceutical industries. The large material selection also means that it is ideally suited for corrosive, abrasive or high viscosity media, which are often found in the chemical industry and environmental engineering, or in processing industries. It is also used in water treatment, whether as a simple process water for heating or cooling circuits, for the manufacture of drinking water or the production of ultra pure water for microelectronics or semiconductor production. In addition to the previously described conventional weir-type diaphragm valve, there is also a full bore diaphragm valve, which provides practically unhindered through flow in the open position. This makes it the ideal choice for highly abrasive media with a high solid matter content. Typical areas of application include mining, manufacture and processing of wood pulp, paper, granules, plaster, cement, etc.

For all the valve types specified, GEMÜ offers numerous customized accessories for automation and process optimization. Electr. position indicator, position and process controllers, sensor systems and measurement devices, are easily and quickly fitted, adjusted and integrated in the existing process control technology.