Danfoss HPBV PN16 高压差旁通阀

描述

HPBV 是一款自力式压差旁通阀,主要用于空调系统。调节阀平时关闭,当阀前压力超过设定值时开启。调节阀内部有一个控制弹簧和用于压差设定的手轮。

主要数据:

应用

适用于需要保证最低流量的热泵系统。HPBV 确保当系统热负荷较低时以及系统供回水压差升高时,保证通过热泵的最小循环流量。

订购信息

图片DN (mm)接口压差设定范围 (bar)公称压力最高温度 (°C)产品代码
[Valve Image Placeholder]25G10.5-2.5PN1690003H6005
32G1¼0.5-2.5003H6006
40G1½1.0-3.0PN16003H6007

压差流量曲线

文档包含三张图表,展示了不同阀门尺寸(DN25、DN32、DN40)在不同压力设定值(0.5 bar 至 3.0 bar)下的压差(Δp,单位:bar)与流量(Q,单位:m³/h)之间的关系。

DN25 曲线: 显示了在 0.5 bar 至 2.5 bar 的设定范围内,不同设定值下的压差与流量关系。

DN32 曲线: 显示了在 0.5 bar 至 2.5 bar 的设定范围内,不同设定值下的压差与流量关系。

DN40 曲线: 显示了在 1.0 bar 至 3.0 bar 的设定范围内,不同设定值下的压差与流量关系。

设计与材料

序号说明材质
1阀体CW617
2阀锥PPS
3弹簧SS304
4O型圈EPDM
5阀盖CW617
6设定杆CW614
7导向套PTFE
8设定手轮PA (塑料)

安装

安装时,请遵守阀体上标注的流体流向指示。安装阀门之前,请确保管道清洁无杂质。

设置

压力设定通过旋转手轮完成,该手轮调节阀体内选择的设定弹簧。设定的值显示在手轮上。

尺寸

DN (mm)abL1H1H2S
25G1G1413710541
32G1¼G1¼504610950
40G1½G1½504813455

选型示例

给定数据: 热泵运行所需的最小流量为 1.4 m³/h,循环泵扬程为 1.2 bar。当所有末端设备打开且系统处于额定热负荷时,系统的供回水管道压差为 0.95 bar。当一些末端用户关闭且系统运行在热泵所需的最低流量时,系统的供回水管道压差为 1.2 bar。

解决方案: 由于在额定负荷下系统供回水管道的压差为 0.95 bar,因此旁通阀设定值应为 1 bar(高于额定负荷下系统的压差)。检查 DN25 图表中的 1 bar 设定曲线,该曲线显示 1.2 bar 泵头阀支持 1.4 m³/h 流量,因此 DN25 阀门为合适的口径。

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