Butterfly valves are the preferred solution when required accession small size and weight, easy installation and minimal maintenance. The combination of simple structure, stable and reliable operation is the stuffing - characteristic advantage of this type of equipment. Mix to our cover versions of connection between the flanges, with one or two ring with nickel-plated stainless wire or disk. Various measures of elastic wristband seal comply with the conditions - water supply systems, waste water and other corrosive impurities, transport of petroleum and petroleum products, rayon, abrasive and aggressive fluids, sanitary requirements. Versions with a double eccentric disk have additional qualities: secured leak and reduced force of friction at work. For all the variations possible with the equipment triggered accessories: reducers, electric or pneumatic drives.