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    • 1. 发明授权
    • A control valve
    • Steuerventil
    • EP2894536B1
    • 2017-03-15
    • EP15150472.7
    • 2015-01-08
    • FlowCon International ApS
    • Ibsen Wittendorff, BjarneMøller, Carsten EnøeVestergaard Lorenzen, LasseSveje Bøjgaard, Mille
    • F16K39/02G05D7/01
    • F16K39/026G05D7/0113G05D16/0641
    • A control valve (1) for controlling differential pressure in a heating and/or cooling installation. The control valve (1) comprises a valve housing (2) with an inlet (3), an outlet (4) and a control port (67), and a pressure regulating arrangement with a pressure chamber (8) upstream of the pressure regulating arrangement. The pressure regulating arrangement is configured for maintaining an essentially constant differential pressure between a control pressure (P0) provided via the control port (67) and an intermediate pressure (P2) in the pressure chamber (8). The pressure regulating arrangement comprises a diaphragm guide (46) and diaphragm (47) that cooperates with a plurality of exit openings (43). The diaphragm (47), which preferably is a rolling diaphragm, closes the exit openings (43) in one of its position. The control valve further comprises at least one drain passage (54) connecting the pressure chamber (8) to the outlet (4) with the drain passage (54) still allowing liquid in the pressure chamber (8) to drain to the outlet (4) when the diaphragm (47) is in the position where it closes the exit openings (43).
    • 一种用于控制加热和/或冷却装置中的液体流动的控制阀(1)。 控制阀(1)包括具有入口(3)和出口(4)的阀壳体(2),用于调节进入开口的流动面积的流动面积调节器,流过控制阀 )从入口(3)到出口(4)必须通过,流量调节器包括至少一个阀构件(24),其可在对应于进入开口的最大可能流动面积的完全打开位置 53)和完全关闭位置,其对应于进入开口基本上封闭的入口的最小可能流动面积;在流动区域调节器下游的压力调节装置,其中在流动的上游具有压力室(8) 压力调节装置构造成用于在入口(3)中的压力(P1)和压力室(3)内的压力(P2)之间保持基本上恒定的压差, (8)和将压力室(8)连接到出口(4)的排水通道(54)。