成本比較：長期使用的電動與氣閥

在評估長期成本時，電動和氣閥在關鍵領域之間有很大差異：

初始成本：由於更簡單的執行器設計，氣動閥的前期更便宜（比電動型號低30-50％）。電動閥最初的成本更高，由電動機，電子設備和精確控制驅動。

運營成本：氣閥依賴壓縮空氣，其空氣壓縮機的高能費用（年費用：500-1500美元）。電動閥使用最少的電力（每年僅$ 10- $ 50），隨著時間的推移大大節省。

維護：氣動系統需要經常維護（密封件更換，過濾器清潔），價格為$ 200- $ 800。電動閥的活動部件較少，將維護成本降低到$ 50- $ 300/年，並減少了停機時間。

總壽命成本：在10年中，由於能源和維護費用降低，電動閥的總擁有成本通常低15–30％。氣閥只能在現有空氣基礎設施的小型設置中脫穎而出。

在大多數情況下，電球閥證明了更具成本效益的長期，而氣動選項適合特定方案，並具有預安裝的壓縮空氣系統。

July 22, 2025

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