BSFP动态压差平衡阀
BSFP DYNAMIC DIFFERENTIAL PRESSURE BALANCING VALVE
应用
动态压差平衡阀是一种自动恒定压差的的平衡阀，用于恒定空调或供热系统中控制阀、末端设备或管网之路供水之间的压差，避免管网压差变化对其动态干扰，实现动态水力平衡。
Apply
Dynamic differential pressure balancing valve is a kind of automatic and constant differential pressure balancing valve, which is used to constant the pressure difference between the control valve, the end equipment or the water supply of the pipe network in the air conditioning or heating system, to avoid the dynamic interference of the pipe network pressure difference change, and to achieve dynamic hydraulic balance.
工作原理
其工作原理为当系统管网资用压差增大，动态压差平衡阀依靠自身高低压腔压力变化，使作用于膜片两侧的力重新平衡，同时带动阀杆运动减小阀门开度，吸收增大的资用压差，保证被控制侧的压差恒定。
Working principle
The working principle is that when the available pressure difference of the system pipe network increases, the dynamic differential pressure balancing valve re-balances the force acting on both sides of the diaphragm by relying on the pressure change of its own high and low pressure chamber, while driving the valve stem movement to reduce the valve opening, absorbing the increased available pressure difference and ensuring the constant pressure difference on the controlled side.
特点
1、自力式压差控制，不需要外部动力源，恒定被控压差
2、可现场设定压差值
3、可控压差范围宽
4、手轮带有压差设定指示
5、具有压力测量口
6、配有三通测量接头
Peculiarity
1, Self-controlled pressure difference control, no external power source, constant controlled pressure difference
2, can set the pressure difference value on site
3. Wide range of controllable pressure difference
4, hand wheel with pressure difference setting instructions
5, with pressure measuring port
6, equipped with tee measuring joint
技术规格
尺 寸：DN50~DN500
工作温度：-10~120C
承压等级：PN16
工作介质：水、乙二醇溶液
连接方式：法兰连接
连接标准：EN1092-1/2GB/T172416-2008
控制精度：土8%
最大工作压差：<400KPa
材 质：①阀体:球墨铸铁 ②阀芯:不锈钢 ③阀杆:不锈钢 ④弹簧:不锈钢 ⑤膜片:EPDM ⑥密封:NBR ⑦手轮:PA
Technical specification
Size: DN50~DN500
Operating temperature: -10~120C
Pressure class: PN16
Working medium: water, glycol solution
Connection mode: flange connection
Connection standard: EN1092-1/2GB/T172416-2008
Control accuracy: soil 8%
Maximum working pressure difference: <400KPa
Material: ① Valve body: ductile iron ② spool: stainless steel ③ Valve stem: stainless steel ④ Spring: stainless steel ⑤ Diaphragm :EPDM ⑥ Seal :NBR ⑦ Handwheel :PA
工作范围
安装说明
动态压差平衡阀可以单独使用，亦可与静态平衡阀配合使用。水流方向需与阀体箭头方向符合一致。安装之前应当冲洗管路，并建议在前端安装过滤器。毛细管应连接在供水管路的上方或水平处，但不可位于管路下方，以防被灰尘微粒堵塞，水系统打压测试之前，必须把毛细信号管安装连接好并且旋转阻断阀。 否则压力过大会导致压差调节器的损坏。
动态压差平衡阀始终安装于回水管上，当与静态平衡阀配合使用时，如下图所示静态平衡阀安装与供水管。
①一动态压差平衡阀
②一静态平衡阀
③一电动调节阀
Installation instructions
The dynamic differential pressure balancing valve can be used alone or in combination with the static balancing valve. The water flow direction must be consistent with the arrow direction of the valve body. The line should be flushed prior to installation and it is recommended to install a filter at the front end. The capillary tube should be connected above or at the level of the water supply line, but not under the pipe, to prevent the dust particles blocked, the capillary signal tube must be installed and connected before the water system pressure test and the blocking valve must be rotated. Otherwise, too much pressure will cause damage to the differential pressure regulator.
The dynamic differential pressure balancing valve is always installed on the return water pipe. When used with the static balance valve, the static balance valve is installed with the supply water pipe as shown in the following figure.
① A dynamic differential pressure balancing valve
② A static balance valve
③ An electric regulating valve
外形尺寸Overall dimension
