进口流量控制阀 恒定压差阀 美国RETZ瑞茨

　　品牌：RETZ瑞茨/美国，我们一直致力于流体控制领域的持续创新，始于2005……

　　功能：控制管道中介质的流量，不因进口压力升高而引起流量增大

　　Function: Control the flow rate of themedium in the pipeline, without causing an increase in flow rate due to anincrease in inlet pressure

　　应用区域：建筑、水处理等。

　　进口流量控制阀产品详情 Productdetails

　　流量控制阀主要安装在配水管路需要控制流量的管路中，将上游的高压降为低压，保持预定的流量不变，将过大流量限制在一个预定值，即使上游的压力变化，也不影响主阀下游的流量，利用管路中的水压自动操作主阀瓣的上下移动，控制阀口开度，主阀安装在送配水管路控制流量的管线中。可先设定调正阀门上部向导调节阀及导阀某一固定流量，就可使通过主阀的流量保持不变，即使主阀上游的压力发生变化，也不会影响。总之该产品是生活给水、消防系统及工业给水系统的理想产品The flow control valve is mainly installed in the pipeline where theflow needs to be controlled in the water distribution pipeline. It reduces theupstream high pressure to low pressure, maintains the predetermined flow rate,and limits excessive flow to a predetermined value. Even if the upstreampressure changes, it does not affect the flow downstream of the main valve. Thewater pressure in the pipeline automatically operates the up and down movementof the main valve disc to control the valve opening. The main valve is installedin the pipeline where the flow is controlled in the water supply anddistribution pipeline. You can first set a fixed flow rate for the upper guideregulating valve and guide valve of the adjustment valve to maintain the flowrate through the main valve unchanged, even if the pressure upstream of themain valve changes, it will not affect it. In short, this product is an idealproduct for domestic water supply, fire protection systems, and industrialwater supply systems

　　进口流量控制阀工作原理 Workingprinciple

　　当阀门从进口端给水时，水流过针阀进入主阀控制室，并经过导阀、球阀流出主阀控制室到出口，此时主阀处于全开或浮动状态。调定主阀上部的流量调节阀，可为主阀设定一定开度。调节针阀开度和调节导阀弹簧压力，即可使主阀开度保持在设定开度，并在压力变化时导阀进行自动调节，保持流量不变。

　　进口流量控制阀结构特点 Structuralcharacteristics

　　维持水泵前后的恒定压差，控制水泵扬程，起到限制水泵工作流量，防止水泵过载，防止停泵回流的作用

　　技术参数：

　　公称通径：DN50~DN500

　　公称压力：PN16-N25

　　适用温度：0℃~80℃

　　适用介质：清水

　　阀体材质：球墨铸铁、碳钢、不锈钢

　　膜片材质：丁腈尼龙强化橡胶、三元乙丙尼龙强化橡胶