常開式壓力開關與常閉式壓力開關的特點
目前壓力開關廣泛應用于化工、機械、水文、電力等系統的壓力控制和自動化過程控制中，而其實壓力開關主要有兩種類型，一種是常開式，另一種是常閉式，二者之間工作原理類似，卻有著不同的特點：
1.常開式壓力開關和常閉式壓力開關均采用高精度、高穩定性的壓力傳感器，具有很強的密封性，此種密封式不銹鋼感應器安全性高，使用起來性能非常可靠。
2. 兩者都采用銅管焊接式安裝結構或英制管螺紋快速接頭，安裝靈活，使用方便，在使用和安裝上都不需要特殊的安裝固定。
3.兩種壓力開關可根據不用的壓力需求進行制造，對壓力的感應性極強，因此用戶在選擇壓力開關時，選擇性也較廣。
西安仕樂克控制器制造有限公司 (www.shelok.net)
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