Valve size 20*20
Thread Content
Cameron ball valve for pipes, DN500 diameter. The first 20 probably refers to 20 inches (500 mm), but what does the second one mean?
The control valve body contains a seat component, and the size of the seat is generally indicated in this way. For example, 25*20mm means that the nominal diameter is 25, and the diameter of the flow cross-section is 20. This is a ball valve; when it’s fully open, the value is naturally 20. But this is not the case with V-type control ball valves.