BSFD动态流量平衡阀
BSFD DYNAMIC FLOW BALANCING VALVE
应用
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。
Apply
The dynamic flow balancing valve is mainly used to solve the hydraulic imbalance problem of the fluid transmission and distribution network. When the system pressure fluctuates within the working pressure difference range, it can dynamically balance the change and keep the flow rate of the pipeline constant.
特点
● 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
● 精确校准的阀芯可确保流量恒定在士5%的偏差范围内
● 流量出厂设定，每个尺寸具有多个压差范围可供选择
● 不需对现场调试，减少人力成本
● 系统变化后，不需对系统进行再平衡设计
peculiarity
● Dynamic balance: When the system pressure difference fluctuates, the spool automatically adjusts the opening of the variable flow channel to achieve constant flow in the controlled area
● Precisely calibrated spool ensures constant flow within a deviation range of 5%
● Flow rate factory setting, each size has multiple differential pressure range to choose from
● No need for on-site commissioning, reducing labor costs
● After the system changes, there is no need to rebalance the system
技术规格
尺 寸：DN50~DN500
工作温度：0~110℃
承压等级：PN16/PN25
工作介质：冷热水、乙/丙二醇溶液
连接方式：对夹连接
连接标准：EN1092-1/2GB/T 17241.6-2008D
控制精度：①阀体：球墨铸铁
材 质：
②阀胆：阀芯：不锈钢
弹簧：不锈钢
③O型圈：EPDM
④测量嘴：黄铜
⑤吊环螺钉：不锈钢304
Technical specification
Size: DN50~DN500
Operating temperature: 0~110℃
Pressure class: PN16/PN25
Working medium: hot and cold water, B/propylene glycol solution
Connection mode: Clamp connection
Connection standard: EN1092-1/2GB/T 17241.6-2008D
Control accuracy: ① Valve body: ductile iron
Material:
② Valve: spool: stainless steel
Spring: stainless steel
③ Type 0 ring: EPDM
④ Measuring nozzle: brass
⑤ Ring screw: stainless steel 304
工作原理
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)
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，保证设计流量在土5%的偏差范围内变化(图2)
3、压差大于最大工作压差时，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)
4、在工作压差范围内，流量保持恒定(图4)
Working principle
1. When the pressure difference is lower than the minimum working pressure difference, the spool is fully opened, consistent with the function of the orifice plate, and the flow rate increases with the increase of the pressure difference (Figure 1).
2. When the pressure difference is within the working pressure difference range, the spool changes the opening according to the change of the system pressure difference to ensure that the design flow rate changes within the deviation range of 5% of the soil (FIG. 2)
3. When the pressure difference is greater than the maximum working pressure difference, the spool opening is the smallest, consistent with the function of the orifice plate, and the flow rate increases with the increase of the pressure difference (Figure 3).
4, within the range of working pressure difference, the flow rate remains constant (Figure 4)
安装说明
1、根据阀门选型正确使用阀门，避免用错流量及压差；
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；
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；
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；
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。
Installation instructions
1. Use the valve correctly according to valve selection to avoid wrong flow rate and pressure difference;
2, pay attention to the system pipe exhaust, system gas storage, may cause the medium blockage, adjustment function failure, or excessive noise;
3, the valve can be installed horizontally or vertically, the installation process should pay attention to the flow of the medium, the direction will lose function;
4, the valve inlet end is recommended to add a filter or cleaning pipeline, to avoid large particles of impurities clogging the valve control element;
5, pay attention to the protection of the detection hole, knock off or deformation will cause leakage or later maintenance difficulties.