进口动态平衡电动二通阀 技术参数 Technical paramete

动态平衡电动二通阀在制冷和供热系统中，风机盘管通常由电动二通阀控制。当一些风机盘管关闭时，其他运行的风机盘管流量将增加，引发室温波动。STV系列是集动态流量平衡阀和电动二通阀于一体的产品，由电热执行器控制。在阀门开启时，通过动态平衡阀的恒流作用维持流经设备的流量不变而不受系统压力波动的影响，使控制精度更高。在制冷或供热系统中，当室温达到房间温控器设定值时，房间的温控器发送信号到电热执行器，令阀门关闭。当室温高于或低于设定温度时，房间温控器发送信号到电热执行器，令阀门开启。通过阀门关闭和开启，使室温始终保持在房间温控器设定的温度范围内。内置平衡阀芯会自动保持流量恒定 RETZ dynamic balance electric two-way valve In refrigeration and heating systems, fan coil units are usually controlled by electric two-way valves. When some fan coils are closed, the flow of other fan coils in operation will increase, causing room temperature fluctuations. STV series is a product integrating dynamic flow balance valve and electric two-way valve, which is controlled by electric actuator. When the valve is opened, the constant flow of the dynamic balance valve keeps the flow through the equipment unchanged without being affected by the system pressure fluctuation, so that the control accuracy is higher. In the refrigeration or heating system, when the room temperature reaches the set value of the room temperature controller, the room temperature controller sends a signal to the electric actuator to close the valve. When the room temperature is higher or lower than the set temperature, the room temperature controller sends a signal to the electric actuator to open the valve. By closing and opening the valve, the room temperature is always kept within the temperature range set by the room temperature controller. The built-in balance valve core will automatically keep the flow constant.

规格说明 Description

连接口径∶螺纹G1/2"-G1"   Connection diameter: thread G1 / 2 "- G1"

公称压力∶2.0Mpa  Nominal pressure: 2.0MPa

介质温度∶2～90℃  Medium temperature: 2 ～ 90 ℃

适用介质∶冷、热水或30%乙二醇溶液  Applicable medium: cold, hot water or 30% ethylene glycol solution

驱动电源∶AC24V、AC110V、AC220V 50/60Hz  Driving power supply:AC24V、AC110V、AC220V 50/60Hz 

功能消耗∶2VA   Function consumption: 2VA

控制误差：≤5%  Control error: ≤ 5%

工作压差∶20-200KPa/30-300KPa  Working pressure difference: 20-200kpa / 30-300kpa

防护等级∶IP44  Protection grade: IP44

驱动控制∶NO/OFF  Drive control: NO/OFF

连接螺套∶30×1.5mm  Connecting screw sleeve: 30 × 1.5mm

动作时间∶<6min  Action time: < 6min

进口动态平衡电动二通阀零部件材质 Component material

①阀体：黄铜  Valve body: Brass

②阀胆：黄铜/不锈钢 Valve liner: Brass / stainless steel

③阻断片：EPDM  Blocker: EPDM

④阀杆：不锈钢 Valve stem: stainless steel

⑤弹簧：不锈钢 Spring: stainless steel

⑥密封材料：NBR  Sealing material: NBR

⑦执行器：外壳材料阻燃PC，执行器内件∶增强POM  Actuator: shell material flame retardant PC, actuator internals: reinforced POM

流量特性 Flow characteristics

性能特点∶ Performance characteristics

通过控制系统信号实现开/关控制 On / off control via control system signal

动态流量平衡，消除末端设备的相互干扰  Dynamic flow balance to eliminate mutual interference of terminal equipment

系统调控精度更高，比传统的变流量系统更舒适 The system has higher regulation accuracy and is more comfortable than the traditional variable flow system

工厂预置流  Factory preset flow

不需要现场调试，系统运行效率更高 No on-site debugging is required, and the system operation efficiency is higher

安装说明 Installation instructions

·将设备要求的额定参数与产品上标示的额定参数进行对照，确保产品的额定流量满足应用的要求  Compare the rated parameters required by the equipment with the rated parameters marked on the product to ensure that the rated flow of the product meets the requirements of the application

·安装人员必须经过培训或富有经验，以确保安装工作顺利完成  Installation personnel must be trained or experienced to ensure the smooth completion of installation

·在安装结束后必须进行彻底地检查以确保安装无误  After installation, a thorough inspection must be carried out to ensure that the installation is correct

·为确保安装工作不出现任何意外，在产品安装前必须对管道系统进行彻底的清洗（必要时采用化学试剂），以确保管道系统的清洁、无锈蚀和污垢，在冲洗前必须移去所有的过滤装置以确保管道通畅  In order to ensure that there is no accident in the installation, the pipeline system must be thoroughly cleaned before the installation of the product (chemical reagent is used if necessary) to ensure that the pipeline system is clean, free of rust and dirt. All filter devices must be removed before flushing to ensure that the pipeline is smooth

·注意该设备不要使用在介质含有较多油脂，矿物油等粘度较高或有腐蚀性的地方  Note: the equipment should not be used in places with high viscosity or corrosivity such as medium containing more grease and mineral oil

·在安装时应注意确保水流方向与阀体标识的箭头方向 During installation, attention shall be paid to ensure that the water flow direction is the same as the arrow direction marked on the valve body