力士樂波登管壓力開關HED3是液壓-電氣壓力開關。它們的基本構成是殼體（1），帶有觸發(fā)觸點（3）的波登管（2），微動開關（4）和兩個調節(jié)元件（5）。壓力開關所承擔的任務是隨壓力變化接通或斷開電路。被監(jiān)控的壓力作用于波登管（2）。波登管（2）發(fā)生彎曲，固定在其上的觸發(fā)觸點（3）將波登管（2）的運動傳遞到微動開關（4）。于是，電路就根據電路的設置接通或斷開。當壓力繼續(xù)增加時，波登管（2）將進一步彎曲，這將引發(fā)觸發(fā)觸點（3）操作第二個微動開關，并根據電路的設置接通或斷開電路。 切換壓力的調節(jié)——所需的兩個切換壓力由微動開關的位置決定，能夠在兩個調節(jié)元件（5）上相互獨立地分別進行調節(jié)。當使用開關繼電器時，切換壓差會發(fā)生無級變化。 
公司可以從德國采購的力士樂波登管壓力開關HED 3型號如下： HED3OA4X/25 HED3OA4X/25Q HED3OA4X/25L24 HED3OA4X/25L24Q
HED3OA4X/25L110 HED3OA4X/25L110Q HED3OA4X/25L220 HED3OA4X/25L220Q
HED3OA4X/25K HED3OA4X/25KQ HED3OA4X/25KL24 HED3OA4X/25KL24Q
HED3OA4X/25KL110 HED3OA4X/25KL110Q HED3OA4X/25KL220 HED3OA4X/25KL220Q
HED3OA4X/25K6 HED3OA4X/25K6Q HED3OA4X/25K6L24 HED3OA4X/25K6L24Q
HED3OA4X/25K6L110 HED3OA4X/25K6L110Q HED3OA4X/25K6L220 HED3OA4X/25K6L220Q
HED3OA4X/63 HED3OA4X/63Q HED3OA4X/63L24 HED3OA4X/63L24Q
HED3OA4X/63L110 HED3OA4X/63L110Q HED3OA4X/63L220 HED3OA4X/63L220Q
HED3OA4X/63K HED3OA4X/63KQ HED3OA4X/63KL24 HED3OA4X/63KL24Q
HED3OA4X/63KL110 HED3OA4X/63KL110Q HED3OA4X/63KL220 HED3OA4X/63KL220Q
HED3OA4X/63K6 HED3OA4X/63K6Q HED3OA4X/63K6L24 HED3OA4X/63K6L24Q
HED3OA4X/63K6L110 HED3OA4X/63K6L110Q HED3OA4X/63K6L220 HED3OA4X/63K6L220Q
HED3OA4X/100 HED3OA4X/100Q HED3OA4X/100L24 HED3OA4X/100L24Q
HED3OA4X/100L110 HED3OA4X/100L110Q HED3OA4X/100L220 HED3OA4X/100L220Q
HED3OA4X/100K HED3OA4X/100KQ HED3OA4X/100KL24 HED3OA4X/100KL24Q
HED3OA4X/100KL110 HED3OA4X/100KL110Q HED3OA4X/100KL220 HED3OA4X/100KL220Q
HED3OA4X/100K6 HED3OA4X/100K6Q HED3OA4X/100K6L24 HED3OA4X/100K6L24Q
HED3OA4X/100K6L110 HED3OA4X/100K6L110Q HED3OA4X/100K6L220 HED3OA4X/100K6L220Q
HED3OA4X/200 HED3OA4X/200Q HED3OA4X/200L24 HED3OA4X/200L24Q
HED3OA4X/200L110 HED3OA4X/200L110Q HED3OA4X/200L220 HED3OA4X/200L220Q
HED3OA4X/200K HED3OA4X/200KQ HED3OA4X/200KL24 HED3OA4X/200KL24Q
HED3OA4X/200KL110 HED3OA4X/200KL110Q HED3OA4X/200KL220 HED3OA4X/200KL220Q
HED3OA4X/200K6 HED3OA4X/200K6Q HED3OA4X/200K6L24 HED3OA4X/200K6L24Q
HED3OA4X/200K6L110 HED3OA4X/200K6L110Q HED3OA4X/200K6L220 HED3OA4X/200K6L220Q
HED3OA4X/400 HED3OA4X/400Q HED3OA4X/400L24 HED3OA4X/400L24Q
HED3OA4X/400L110 HED3OA4X/400L110Q HED3OA4X/400L220 HED3OA4X/400L220Q
HED3OA4X/400K HED3OA4X/400KQ HED3OA4X/400KL24 HED3OA4X/400KL24Q
HED3OA4X/400KL110 HED3OA4X/400KL110Q HED3OA4X/400KL220 HED3OA4X/400KL220Q
HED3OA4X/400K6 HED3OA4X/400K6Q HED3OA4X/400K6L24 HED3OA4X/400K6L24Q
HED3OA4X/400K6L110 HED3OA4X/400K6L110Q HED3OA4X/400K6L220 HED3OA4X/400K6L220Q HED 3的注意事項：壓力開關的用處波登管壓力開關只能應用于衰減的機械振動（在安裝橡膠緩沖器的情況下）。要補償泵脈動，我們建議通過測壓軟管（DN大約2毫米，zui小長度1米）連接壓力開關。切換壓差要確保切換信號的可靠性，獲得的實際壓差必須大于壓力開關的現(xiàn)有切換壓差。切換點的長期漂移 由于設置的切換點會隨時間發(fā)生變化，壓力開關不適用于安全應用。 |
