进口动态流量平衡阀 定流量阀 美国RETZ瑞茨

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

　　进口定流量阀、动态流量平衡阀主要用于解决流体输配管网水力失调的难题，当系统压力在工作压差范围内波动时它能动态地平衡这种变化而保持所在管道的流量恒定retz The constant flow valve and dynamic flow balance valve aremainly used to solve the problem of hydraulic imbalance in fluid transmissionand distribution pipelines. When the system pressure fluctuates within theworking pressure difference range, they can dynamically balance this change andmaintain a constant flow rate in the pipeline where they are located

　　进口动态流量平衡阀技术参数 Technicalparamete

　　1.压差低于最小工作压差时，阀芯全开，与孔板功能一致，流量随压差增大而增大（图1）When the pressuredifference is lower than the minimum working pressure difference, the valvecore is fully opened, which is consistent with the function of the orificeplate, and the flow increases with the increase of the pressure difference(Fig. 1)

　　2.压差在工作压差范围内时，阀芯根据系统压差的变化改变开度，保证设计流量在±5%的偏差范围内变化（图2）RETZ When the pressure difference is within the working pressuredifference range, the valve core changes the opening according to the change ofthe system pressure difference to ensure that the design flow changes withinthe deviation range of ± 5% (Fig. 2)

　　3.压差大于工作压差时，阀芯开度最小，与孔板功能一致，流量随压差增大而增大（图3）When the pressuredifference is greater than the maximum working pressure difference, the openingof the valve core is the smallest, which is consistent with the function of theorifice plate. The flow increases with the increase of the pressure difference(Fig. 3)

　　4.在工作压差范围内，流量保持恒定（图4）The flow rate remainsconstant in the range of operating differential pressure (Figure 4)

　　进口动态流量平衡阀性能特点∶ Performance characteristics

　　1.动态平衡∶当系统压差产生波动时，阀芯自动调整可变流道开度，能实现被控区域恒定流量RETZ Dynamic balance: when the pressure difference of the systemfluctuates, the valve core automatically adjusts the opening of the variableflow channel, which can realize the constant flow in the controlled area

　　2.准确校准的阀芯可确保流量恒定在±5%的偏差范围内 The preciselycalibrated spool ensures that the flow is constant within ± 5% of the deviation

　　3.流量出厂设定，每个尺寸具有多个压差范围可供选择 Flow factory setting, eachsize has multiple pressure difference ranges for selection

　　4.不需现场调试，减少人力成本 No on-site commissioning isrequired to reduce labor cost

　　5.系统变化后，不需对系统进行再平衡设计 After the system changes,there is no need to rebalance the system

　　进口动态流量平衡阀选型参数

　　尺寸：2"-20" Size: 2 "- 20"

　　工作温度：0~110℃ Working temperature: 0 ~ 110 ℃

　　承压等级：PN16/PN25 Pressurebearing grade: PN16 / PN25

　　误差：±5% Error: ± 5%

　　压差范围∶14-220KPa，35-410KPa Pressure differencerange: 14-220kpa, 35-410kpa

　　工作介质∶冷热水、乙/丙二醇溶液 Working medium: cold and hot water, ethylene / propylene glycolsolution

　　连接方式∶法兰、对夹连接 Connectionmethod: flange and clamp connection

　　零部件材质 Component material

　　①阀体：球墨铸铁 Valve body:ductile iron

　　②阀胆：阀芯：不锈钢/青铜，弹簧：不锈钢 Valve liner: valve core: stainless steel / bronze, spring:stainless steel

　　③O型圈：EPDM O-ring: EPDM

　　④测量嘴：不锈钢/黄铜 Measuring nozzle: stainless steel / brass

　　⑤吊环螺钉∶不锈钢304 Eyebolt:stainless steel 304

　　安装说明 Installationinstructions

　　1.根据阀门选型正确使用阀门，避免用错流量及压差 Use the valve correctly according to the valve selection to avoidwrong flow and pressure difference

　　2.注意系统管道排气，系统存气，可能会引起介质堵塞、调节功能失效、或噪声过大 Pay attention to the exhaust of the system pipe and the air in thesystem, which may cause medium blockage, regulation function failure orexcessive noise

　　3.该阀门可水平安装亦可垂直安装，安装过程中应注意介质流向，方向装反会失去功能 The valve can be installed horizontally or vertically. Payattention to the flow direction of medium during installation. If the directionis reversed, it will lose its function

　　4.阀门进水端建议加过滤器或清洗管路，可避免大颗粒杂质堵塞阀门控制元件 It is recommended to add a filter or clean the pipeline at thewater inlet end of the valve to avoid blocking the control element of the valvewith large particles

　　5.注意检测孔的保护，碰掉或变形会引起泄露或以后的维护困难 Pay attention to the protection of the inspection hole. If it istouched or deformed, it will cause leakage or later maintenance difficulties