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发明授权
CN101514762B 改进的旁通压力调节阀 有权

改进的旁通压力调节阀
摘要：
一种旁通压力调节阀(1)，具有：通过主管道(13)相互连通的进口(10)和出口(11)；旁通口(12)。旁通压力调节阀(1)包括：在阻断主管道(13)和旁通口(12)之间的流体连通的至少闭合位置和不阻断该流体连通的至少打开位置之间移动的闭塞器(20)；预先设置成将闭塞器(20)移离闭合位置的操作压力控制装置(30)；用于确定穿过主管道(13)的流体的流动压力损失的装置(40)，其沿着主管道(13)设置以将主管道(13)上游的第一管道(13a)与下游的第二管道(13b)分开；由主管道(13)的第一管道(13a)和第二管道(13b)之间的流体压差控制的闭塞器操控装置(50)，其区别于操作压力控制装置(30)但与闭塞器(20)操作性地连接。
摘要（英）：

A by-pass and pressure regulator valve (1), comprising:: an inlet mouth (10) and an outlet mouth (11) set in reciprocal communication by a main conduit (13); a by-pass mouth (12). The by-pass and pressure regulator valve (1) comprises: an obturator (20), mobile between at least a closed position which interrupts fluid communication between the main conduit (13) and the by-pass mouth (12), and at least an open position, in which the fluid communication is not interrupted; operating pressure control means (30), predisposed to move the obturator (20) from the closed position; means for determining a flow pressure loss (40) in fluids crossing the main conduit (13), arranged along the main conduit (13) in order to separate a first tract (13a) upstream of the main conduit (13) from a second tract (13b) downstream thereof; obturator (50) command means governed by a fluid pressure difference between the first tract (13a) and the second tract (13b) of the main conduit (13), distinct from the operating pressure control means (30) but operatively connected to the obturator (20).

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