High Quality Valve and Frange for Paper Making Machine

High Quality Valve and Frange for Paper Making Machine 

A flange valve is a particular type of valve where a raised surface, usually in the shape of a lip or ring on the end of the valve fitting, is mated to a groove on the facing to which it attaches. This gives the valve connection increased strength in heavy-duty piping such as for that used in the chemical and petroleum industries. Visual illustrations of what a flange looks like can be commonly seen on railway car wheels or those of city trolley cars, where the steel lip or flange of the wheel fits within a groove on the track that it runs along. Flange sizes and joints are made to conform to one of several dominant standards, which include the British Standard (BS) adopted from the European Standard (EN) 1092 in June, 2007, to which the American Society of Mechanical Engineers (ASME) standard also conforms. A flange valve can also be made to similar American National Standards Institute (ANSI) specifications largely used in the US.