Steps and Basis for Electric Ball Valve Selection
In the fluid piping system, the electric ball valve is the control element, and its main purpose is to cut off the flow, adjust the flow, prevent backflow, adjust and drain the pressure. It is very important to choose the most suitable piping system. It is related to the safety, flow loss, cost, etc. of the piping system. You must be familiar with the characteristics and the selection steps and basis. Electric ball valve industry so far, the pressure-bearing materials are cast copper, cast iron, ductile iron, high silicon cast iron, cast steel, forged steel, high and low alloy steel, stainless acid-resistant steel, Hastelloy, Inconel, Mongolia Nail alloy, duplex stainless steel, titanium alloy, etc.
We can support the production of various electric, pneumatic and hydraulic drive devices. Faced with so many varieties and such complicated various working conditions, to choose the most suitable product for installation in the piping system, I believe that the characteristics that should be understood first; secondly, the steps and basis for selection should be mastered; and the principle of selection should be followed.
Compared with the above-mentioned types, it is lighter, larger in diameter, and lower in price. It was adopted by some gas companies in the early 1980s. After about ten years of use, it is generally considered that the effect is not good. The isolation width of the sealing pair is too narrow, which will easily cause the valve clack to be over or not in place during the closing process, which will affect the sealing; the vacuum valve clack is in the middle of the valve cavity, and the flow resistance is large, and it cannot pass through the cleaner; because the middle of the seal is part of rubber or poly four Vinyl fluoride is easy to damage or fall off during gas scouring and has a short service life.
