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真空節(jié)流破壞閥,smc板材,smc氣動(dòng)原件,KQZD10-03S一級(jí)經(jīng)銷(xiāo)商,*,歡迎選購(gòu)
- 型 號(hào):KQZD10-03S-X2
- 更新時(shí)間:2023-07-10
真空節(jié)流破壞閥,smc板材,smc氣動(dòng)原件,KQZD10-03S一級(jí)經(jīng)銷(xiāo)商,*,歡迎選購(gòu)內(nèi)置有2個(gè)滑閥。能夠用1個(gè)閥來(lái)控制真空吸著和破壞。閥寬10mm(與SJ3000系列相同)。帶有能夠調(diào)節(jié)空氣流量的節(jié)流閥。真空側(cè)與破壞側(cè)內(nèi)置多種可交換的過(guò)濾器。可以與4通電磁閥SJ2000/SJ3000混合使用。
真空節(jié)流破壞閥,smc板材,smc氣動(dòng)原件,KQZD10-03S一級(jí)經(jīng)銷(xiāo)商,*,歡迎選購(gòu)
真空破壞閥(Vacuum Breaker Valve)是一種安全閥。主要用于容器或管道中,在管道或容器因系統(tǒng)運(yùn)行或停止而產(chǎn)生負(fù)壓或真空逐步升高時(shí),該閥能自動(dòng)開(kāi)啟,破壞真空效應(yīng),使管道及其它設(shè)備不至產(chǎn)生癟、凹裂等現(xiàn)象,以保護(hù)設(shè)備的安全。
發(fā)展歷史
*代氣壓式
原始的氣壓式真空破壞閥由于需要專(zhuān)門(mén)的氣源和直流設(shè)備,已逐步淘汰。
第二代電動(dòng)式
第二代的電動(dòng)式真空破壞閥同水泵同通電,斷電。一旦出現(xiàn)非事故的停電,此閥就能自動(dòng)馬上打開(kāi),破壞虹吸,截?cái)嗨?,防止水流倒灌?huì)產(chǎn)生主機(jī)的葉輪飛揚(yáng)的事件。
此閥門(mén)關(guān)閉動(dòng)力源是采用100%節(jié)能電磁鐵,工作電源是采用220V,50Hz,其維護(hù)工作電壓只要300毫安。能長(zhǎng)時(shí)間工作,電磁鐵的溫升只要10K。開(kāi)閥動(dòng)力采用蓄能彈簧,能在2~5秒之間打開(kāi)。還設(shè)有手動(dòng)開(kāi)閥、關(guān)閥的裝置。人工操作方便、安全系數(shù)大。
但由于此閥耗電且一旦其電路發(fā)生故障即*失效,所以也沒(méi)有*得到市場(chǎng)的認(rèn)可。
第三代機(jī)械式
第三代真空破壞閥為機(jī)械式結(jié)構(gòu)。在系統(tǒng)形成真空時(shí)由大氣壓力直接頂開(kāi)擋板往系統(tǒng)加氣,迅速破壞真空,防止負(fù)壓危害。0.2bar的密封壓力保證了在系統(tǒng)正壓時(shí)*不滲漏。由于不需要耗電,使用壽命長(zhǎng),破真空及時(shí)而得到市場(chǎng)的*歡迎。
真空節(jié)流破壞閥,smc板材,smc氣動(dòng)原件,KQZD10-03S一級(jí)經(jīng)銷(xiāo)商,*,歡迎選購(gòu)
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