Product Overview The main function of rotary ball valve is that it can not only seal well under forward pressure, butalso seal well when reverse pressure or reverse pressure is greater than positive pressure. When the positive pressure is applied,…

Product Overview Ball valves are widely used in oil, gas, coal and ore mining, refining and processing and pipeline transportation systems; in chemical products, medicine and food production systems; in hydropower, thermal power and nuclear power power power production systems;…