華德溢流閥DBW10B-1-50B/315X6CG24N9Z4
華德溢流閥DBW10B-1-50B/315X6CG24N9Z4
電磁閥基本原理
追朔電磁閥的發(fā)展史,到目前為止,國內外的電磁閥從原理上分為三大類(即:直動式、分步童先導式),而從閥瓣結構和材料上的不同與原理上的區(qū)別又分為六個分支小類(直動膜片結構、分步重片結構、先導膜式結構、直動活塞結構、分步直動活塞結構、先導活塞結構)。
直動式電磁閥
原理:通電時,電磁線圈產(chǎn)生電磁力把關閉件從閥座上提起,閥門打開;斷電時,電磁力消失,彈簧把關閉件壓在閥座上,閥門關閉。
特點:在真空、負壓、零壓時能正常工作,但通徑一般不超過25mm。
分布直動式電磁閥
原理: 它是一種直動和先導式相結合的原理,當入口與出口沒有壓差時,通電后,電磁力直接把先導小閥和主閥關閉件依次向上提起,閥門打開。當入口與出口達到啟動壓差時,通電后,電磁力先導小閥,主閥下腔壓力上升,上腔壓力下降,從而利用壓差把主閥向上推開;斷電時,先導閥利用彈簧力或介質壓力推動關閉件,向下移動,使閥門關閉。
特點: 在零壓差或真空、高壓時亦能可靠動作,但功率較大,要求必須水平安裝。
先導式電磁閥
原理:通電時,電磁力把先導孔打開,上腔室壓力迅速下降,在關閉件周圍形成上低下高的壓差,流體壓力推動關閉件向上移動,閥門打開;斷電時,彈簧力把先導孔關閉,入口壓力通過旁通孔迅速腔室在關閥件周圍形成下低上高的壓差,流體壓力推動關閉件向下移動,關閉閥門。
特點: 流體壓力范圍上限較高,可任意安裝(需定制)但必須滿足流體壓差條件。
北京華德液壓全系列 具體型號及報價請聯(lián)系客服
北京華德先導式溢流閥部分型號:
DB20A-2-30B/50 DB30-1-50B/100
DB20A-2-30B/50X DB30-1-50B/200
DB20A-2-30B/50XY DB30-1-50B/315
DB20A-2-30B/50Y DB30-1-50B/50
DB20A-3-30B/100 DB30-2-30B/100
DB20A-3-30B/100X DB30-2-30B/200
DB20A-3-30B/100XY DB30-2-30B/315
DB30B-1-30B/200Y DB30-2-30B/50
DB30B-1-30B/315 DB30-2-50B/100
DB30B-1-30B/315X DB30-2-50B/200
DB30B-1-30B/315XY DB30-2-50B/315
DB30B-1-30B/315Y DB30-2-50B/50
DB30B-1-30B/50 DB30A-1-30B/200
DB30B-1-30B/50X DB30A-1-30B/200X
DB30B-1-30B/50XY DB30A-1-30B/200XY
DB30B-1-30B/50Y DB30A-1-30B/200Y
DB30B-3-30B/100 DB30A-1-30B/315
DB30B-3-30B/100X DB30A-1-30B/315X
DB30B-3-30B/100XY DB30A-1-30B/315XY
DB30B-3-30B/100Y DB30A-1-30B/315Y
DB30B-3-30B/200 DB30AG-2-50B/100
DB30B-3-30B/200X DB30AG-2-50B/100X
DB30B-3-30B/200XY DB30AG-2-50B/100XY
北京華德液壓全系列 具體型號及報價請聯(lián)系客服
北京華德先導式溢流閥部分型號:
DB30B-3-30B/200Y DB30AG-2-50B/100Y
DB30B-3-30B/315 DB30AG-2-50B/200
DB30B-3-30B/315X DB30AG-2-50B/200X
DB30B-3-30B/315XY DB30AG-2-50B/200XY
DB30B-3-30B/315Y DB30AG-2-50B/200Y
DB30B-3-30B/50 DB30AG-2-50B/315
DB30B-3-30B/50X DB30AG-2-50B/315X
DB30B-3-30B/50XY DB30AG-2-50B/315XY
DB30B-3-30B/50Y DB30AG-2-50B/315Y
DB30G-1-30B/100 DB30AG-2-50B/50
DB30G-1-30B/200 DB30AG-2-50B/50X
DB30G-1-30B/315 DB30AG-2-50B/50XY
DB30G-1-30B/50 DB30AG-2-50B/50Y
DB30G-1-50B/100 DB30B-1-30B/100
DB30G-1-50B/200 DB30B-1-30B/100X
DB30G-1-50B/315 DB30B-1-30B/100XY
DB30G-1-50B/50 DB30B-1-30B/100Y
DB30G-2-30B/100 DB30B-1-30B/200
DB30G-2-30B/200 DB30B-1-30B/200X
DB30G-2-30B/315 DB30B-1-30B/200XY
DB30G-2-30B/50 DB30B-1-30B/200Y
DB30G-2-50B/100 DB30B-1-30B/315
DB30G-2-50B/200 DB30B-1-30B/315X
DB30G-2-50B/315 DB30B-1-30B/315XY
DB30G-2-50B/50 DB30B-1-30B/315Y