寶德BURKERT2712型氣動截止式調節閥
寶德BURKERT2712型氣動截止式調節閥常閉、常開、彈簧復位執行機構
burkert2712電磁閥可靠性電磁閥分為常閉和常開二種；一般選用常閉型，通電打開，斷電關閉；但寶德BURKERT截止式調節閥在開啟時間很長關閉時很短時要選用常開型了。壽命試驗，工廠一般屬于型式試驗項目，確切地說我國還沒有電磁閥的專業標準，因此選用電磁閥廠家時慎重。
德國BURKERT寶德氣動截止式調節閥2712型

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