1, ordinary hard sealed ball valve only open, close two positions, in the control accuracy requirements of high and stable parameters, please choose a number of hard sealed ball valve; Z3CF three-position normally open hard sealed ball valve, with micro open, full open and closed three flow; Zdf-z1/1 combination multi-functional hard seal ball valve with full open, large open, small open, full open four kinds of flow.
2, action time: refers to the electrical signal connected or cut off to the main valve action completion time, only the company's patented product multi-functional hard seal ball valve can be opened and closed time respectively, not only to meet the control accuracy requirements, but also to prevent water hammer damage.
3. The leakage value given on the leakage sample is a common economic grade. If it is too high, please make special orders.
