动态平衡调节阀
DYNAMIC BALANCE CONTROL VALVE
应用
动态平衡电动调节阀与电动执行器配合使用应用于空调系统如预冷空调箱(PAU)、空调箱(AHU)、新风机组(MAU)等末端设备或者采暖系统板换等末端设备，根据空调区域温度需求和控制系统信号调节被控末端流量，并维持管网压差恒定，确保被控末端不受管网系统中其它设备运行影响，保持系统高效节能、稳定运行。
Apply
The dynamic balance electric control valve is used in combination with the electric actuator for air conditioning systems such as pre-cooled air conditioning box (PAU), air conditioning box (AHU), fresh air unit (MAU) and other end equipment or heating system board change and other end equipment, according to the temperature demand of the air conditioning area and the control system signal to adjust the controlled end flow, and maintain the constant pressure difference of the pipe network. Ensure that the controlled end is not affected by the operation of other devices in the pipe network system, and keep the system efficient, energy saving and stable operation.
特点
● 等百分比控制特性
● 保持调节阀两端压差恒定
● 电子预设定最大流量，方便现场调试
● 具有故障自动诊断和报警功能，电源带过载保护功能
● 行程自动检测功能
● 该阀门的调节阀芯采用角行程驱动，驱动扭矩小，流量范围大且控制精确，阀门整体尺寸小
peculiarity
● Equal percentage control features
● Keep the pressure difference at both ends of the regulating valve constant
● Electronic pre-set maximum flow rate, convenient field debugging
● With automatic fault diagnosis and alarm function, power supply with overload protection function
● Automatic stroke detection function
● The regulating spool of the valve is driven by Angle stroke, the driving torque is small, the flow range is large and the control is accurate, and the overall size of the valve is small
技术规格
尺 寸：DN40~DN250
工作温度：-10~120℃
承压等级：PN16
工作介质：空调冷热水、乙/丙二醇溶液
连接方式：法兰连接
连接标准：EN1092-1/2GB/T17241.6-2008
流量误差：≤5%
工作电压： 24VAC
控制信号：0-10VDC/4-20mA
工作压差范围： 30-420KPa
执行器防护等级： IP54/65
控制特性： 等百分比特性
材 质： ①阀体：球墨铸铁
②阀芯：不锈钢
③阀杆：不锈钢
④膜片：EPDM
⑤弹簧：不锈钢
⑥密封材料：NBR
⑦执行器：外壳材料：阻燃PC+压铸铝
执行器内件：增强POM
Technical specification
Size: DN40~DN250
Operating temperature: -10~120℃
Pressure class: PN16
Working medium: air conditioning cold and hot water, B/propylene glycol solution
Connection mode: flange connection
Connection standard: EN1092-1/2GB/T17241.6-2008
Flow error: ≤5%
Working voltage: 24VAC
Control signal: 0-10VDC/4-20mA
Working pressure difference range: 30-420KPa
Actuator protection class: IP54/65
Control characteristics: equal percentage characteristics
Material: ① Valve body: ductile iron
② Spool: stainless steel
③ Valve stem: stainless steel
④ Diaphragm: EPDM
⑤ Spring: stainless steel
⑥ Sealing material: NBR
⑦ Actuator: Housing material: flame-retardant PC+ die-cast aluminum
Actuator internals: Enhanced POM
工作原理
动态平衡电动调节阀结构分为流量调节结构和动态平衡结构两部分流量调节结构可完成阀门流量的设定和调节，配合执行器可实现阀门的电动调节、开关功能。
动态平衡结构可实现阀门流量的动态平衡，该结构的核心部件为感压膜片和弹簧，感压膜片感应阀门入口和平衡阀芯内腔之间的压差(P1-P2),
在此压差作用下调节可变流道的流通面积，保持压差(P1-P2)基本恒定从而保持流量不变。
Working principle
Dynamic balance electric control valve structure is divided into flow regulation structure and dynamic balance structure two parts flow regulation structure can complete the valve flow setting and regulation, with the actuator can achieve the valve electric regulation, switching function.
The dynamic balance structure can realize the dynamic balance of valve flow. The core components of the structure are pressure sensing diaphragm and spring. The pressure sensing diaphragm senses the pressure difference between the valve inlet and the balance valve core cavity (P1-P2).
Under the action of this pressure difference, the flow area of the variable flow channel is adjusted to keep the pressure difference (P1-P2) basically constant so as to keep the flow constant.
流量特性
Flow characteristic
安装说明
Installation instructions
安装注意事项：
1、 安装前请详细阅读说明书，检查产品型号和参数，根据要求设定工作电压和输入信号；
2、 尽可能保证垂直安装，预留空间以方便维护；
3、 安装时应注意保证水流方向与阀体上箭头所指方向一致；
4、 建议设计系统旁路连通，灌装时应该由旁路将管路中杂质冲洗干净否则可能会引起阀门堵塞；
5、 安装时应保证阀门前后预留一定长度的直管段，一般在进口预留管道直径10倍长度的直管段，出口预留管道直径5倍长度的直管段。
Installation precautions:
1, please read the instructions carefully before installation, check the product model and parameters, set the working voltage and input signal according to the requirements;
2, as far as possible to ensure vertical installation, reserve space for easy maintenance;
3. Pay attention to ensure that the water flow direction is consistent with the direction indicated by the arrow on the valve body during installation;
4. It is recommended that the design system be connected by bypass, and the impurities in the pipeline should be washed out by bypass when filling, otherwise it may cause valve blockage;
5, the installation should ensure that the valve before and after the reservation of a certain length of the straight pipe section, generally reserved in the inlet pipe diameter of 10 times the length of the straight pipe section, the outlet pipe diameter of 5 times the length of the straight pipe section.