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首頁 > 行業新聞> 為HVAC系統選擇合適的電球閥
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為HVAC系統選擇合適的電球閥

選擇合適的電球閥對於優化HVAC系統效率，可靠性和控制精度至關重要。這是要考慮的關鍵因素：

1。 尺寸和流量容量

將閥尺寸與HVAC管道直徑（例如，½英寸至4英寸）匹配，以避免流動限製或過度壓力下降。根據系統流速和壓力差計算所需的流量係數（CV） - 量化閥可能會導致效率低下，而超大號的閥門可能導致控制準確性差。

2。 材料兼容性

閥體和內部成分必須抵抗HVAC流體（水，甘油混合物或製冷劑）的腐蝕。對於水基系統， 黃銅或鑄鐵具有成本效益且耐用。對於腐蝕冷卻劑，選擇不銹鋼。密封應使用EPDM或Viton來確保與系統流體的緊密關閉和兼容。

3。 執行器類型和控制

在ON/OFF執行器之間選擇簡單的開放/關閉操作（例如，區域隔離），並調節執行器以進行精確的流動調節（例如，溫度調節）。調節閥具有0-10V或4–20MA控制信號，為可變的空氣或水流系統提供了更精細的調整。確保執行器的扭矩額定值匹配閥尺寸，以避免干擾。

4。 壓力和溫度等級

檢查閥門的最大工作壓力（通常為150-300 psi）和溫度範圍（大多數HVAC應用）以適合系統條件。高溫系統（例如，水力加熱）可能需要帶有耐熱密封和身體的閥門。
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5。 可靠性和安裝

用耐用的電動執行器（IP65/IP67的水分耐藥性等級）優先考慮閥門，以承受HVAC環境。尋找手動覆蓋以進行緊急操作和易於安裝（法蘭或螺紋連接）之類的功能，以簡化安裝和維護。
通過專注於尺寸，材料，控制類型和操作評級，您可以選擇一個增強HVAC系統性能並降低長期維護成本的電球閥。
July 24, 2025
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