英國NORGREN脈沖閥8296700.8171.23050

空氣處理設備（各種過濾器、調壓閥、三聯(lián)件等）；

自保持型電磁闊：自保持型電磁就是只需瞬間通電即完成閥門開關動作,閥芯位置不需電來保持。它的優(yōu)點在于節(jié)約能源尤其是用電池作電源的場合，而且可不考慮溫升，從而線圈壽命長，在高低溫、防爆等場合有較高性。常見的有機械式保持和永磁體保持，又分雙線圈和單線圈，以單線圈磁保持結構為簡單。它是以改變直流電源極性改變對應閥門開關的兩種狀態(tài)。這種電磁單獨安裝線圈外部接線需加轉換開關，而與智能儀表配套則十分方便。費煤氣表和水表所配的電磁是儀表成敗的關鍵之一，其中的自保持技術又是電磁的成敗的重要因素，國內的自保持電磁已日趨成熟

8296700.8171.23050，

8296700.8171.02400

8296600.8171.23050

8296400.8171.23050，

8296400.8171.02400

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