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首页 > 行业新闻> 为HVAC系统选择合适的电球阀
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为HVAC系统选择合适的电球阀

选择合适的电球阀对于优化HVAC系统效率，可靠性和控制精度至关重要。这是要考虑的关键因素：

1。 尺寸和流量容量

将阀尺寸与HVAC管道直径（例如，½英寸至4英寸）匹配，以避免流动限制或过度压力下降。根据系统流速和压力差计算所需的流量系数（CV） - 量化阀可能会导致效率低下，而超大号的阀门可能导致控制准确性差。

2。 材料兼容性

阀体和内部成分必须抵抗HVAC流体（水，甘油混合物或制冷剂）的腐蚀。对于水基系统， 黄铜或铸铁具有成本效益且耐用。对于腐蚀冷却剂，选择不锈钢。密封应使用EPDM或Viton来确保与系统流体的紧密关闭和兼容。

3。 执行器类型和控制

在ON/OFF执行器之间选择简单的开放/关闭操作（例如，区域隔离），并调节执行器以进行精确的流动调节（例如，温度调节）。调节阀具有0-10V或4–20MA控制信号，为可变的空气或水流系统提供了更精细的调整。确保执行器的扭矩额定值匹配阀尺寸，以避免干扰。

4。 压力和温度等级

检查阀门的最大工作压力（通常为150-300 psi）和温度范围（大多数HVAC应用）以适合系统条件。高温系统（例如，水力加热）可能需要带有耐热密封和身体的阀门。
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5。 可靠性和安装

用耐用的电动执行器（IP65/IP67的水分耐药性等级）优先考虑阀门，以承受HVAC环境。寻找手动覆盖以进行紧急操作和易于安装（法兰或螺纹连接）之类的功能，以简化安装和维护。
通过专注于尺寸，材料，控制类型和操作评级，您可以选择一个增强HVAC系统性能并降低长期维护成本的电球阀。
July 24, 2025
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