平板闸阀的流量特性分析

带导流孔的平板闸阀，其流量特性等同于同规格的管道，呈等百分比特性，不带导流孔的平板闸阀，其中腔跨度较楔式闸阀小，且属于规则的圆柱体，所以，其本上除压力损失较带导流孔的大外，其余特性基本接近。不带导流孔调节型的平板闸阀其对流量的调节特性优于普通不带导流孔的平板闸阀。

阀门开度—Cv特性曲线表 Valve-opening —Cv characteristic graph



Flow charalteristic
    The flow characteristic of flat gate valves with a diversion hole is equal to that of pipelines of thesame specification.The characteristic is shown in per centum form.As for valves without a diversion hole,its cavity fly span is smaller than that of wedge gate vales and it is a regular cylindrical object,therefore,characteristics of the valves are similar except that they have a larger pressure loss.Besides,their flux adjustment behavior is better than that of the ones with a deversion hole.