北部精機(jī)電磁換向閥SWH-G02-B21-A220-10

北部精機(jī)電磁換向閥SWH-G02-B21-A220-10

北部精機(jī)電磁換向閥SWH-G02-B21-A220-10

優(yōu)點(diǎn)編輯
動(dòng)作準(zhǔn)確、自動(dòng)化程度高、工作穩(wěn)定可靠，但需附設(shè)驅(qū)動(dòng)和冷卻系統(tǒng)，結(jié)構(gòu)較為復(fù)雜；閥瓣式結(jié)構(gòu)則較簡(jiǎn)單，多用于流量較小的生產(chǎn)工藝上。
在石油、化工、礦山和冶金等行業(yè)中，六通換向閥是一種重要的流體換向設(shè)備。該閥安裝在稀油潤(rùn)滑系統(tǒng)輸送潤(rùn)滑油的管道中。通過(guò)變換密封組件在閥體中的相對(duì)位置，使閥體各通道連通或斷開(kāi)，從而控制流體的換向和啟停。
換向閥的主要性能編輯
以電磁閥的項(xiàng)目為最多，它主要包括下面幾項(xiàng)：
1.工作可靠性
指電磁鐵通電后能否可靠地?fù)Q向，而斷電后能否可靠地復(fù)位。電磁閥也只有在一定的流量和壓力范圍內(nèi)才能正常工作。這個(gè)工作范圍的極限稱為換向界限。
2.壓力損失
由于電磁閥的開(kāi)口很小，故液流流過(guò)閥口時(shí)產(chǎn)生較大的壓力損失。
3.內(nèi)泄漏量
在各個(gè)不同的工作位置，在規(guī)定的工作壓力下，從高壓腔漏到低壓腔的泄漏量為內(nèi)泄漏量。過(guò)大的內(nèi)泄漏量不僅會(huì)降低系統(tǒng)的效率，引起過(guò)熱，而且還會(huì)影響執(zhí)行機(jī)構(gòu)的正常工作。
4.換向和復(fù)位時(shí)間
交流電磁閥的換向時(shí)間一般為0.03～0.05s，換向沖擊較大;而直流電磁閥的換向時(shí)間為0.1～0.3s，換向沖擊較小。通常復(fù)位時(shí)間比換向時(shí)間稍長(zhǎng)。
5.換向頻率
換向頻率是在單位時(shí)間內(nèi)閥所允許的換向次數(shù)。目前單電磁鐵的電磁閥的換向頻率一般為60次/min。
6.使用壽命
電磁閥的使用壽命主要取決于電磁鐵。濕式電磁鐵的壽命比干式的長(zhǎng)，直流電磁鐵的壽命比交流的長(zhǎng)。
7.滑閥的液壓卡緊現(xiàn)象
滑閥的液壓卡緊現(xiàn)象不僅在換向閥中有，其他的液壓閥也普遍存在，在高壓系統(tǒng)中更為突出，特別是滑閥的停留時(shí)間越長(zhǎng)，液壓卡緊力越大，以致造成移動(dòng)滑閥的推力（如電磁鐵推力）不能克服卡緊阻力，使滑閥不能復(fù)位。
引起液壓卡緊的原因，有的是由于臟物進(jìn)入縫隙而使閥芯移動(dòng)困難，有的是由于縫隙過(guò)小在油溫升高時(shí)閥芯膨脹而卡死，但是主要原因是來(lái)自滑閥副幾何形狀誤差和同心度變化所引起的徑向不平衡液壓力。為了減小徑向不平衡力，應(yīng)嚴(yán)格控制閥芯和閥孔的制造精度，在裝配時(shí)，盡可能使其成為順錐形式，另一方面在閥芯上開(kāi)環(huán)形均壓槽，也可以大大減小徑向不平衡力



臺(tái)灣北部精機(jī)電磁換向閥SWH-G02-C8-A220-10
臺(tái)灣北部精機(jī)電磁換向閥SWH-G02-C8M-A220-10
臺(tái)灣北部精機(jī)電磁換向閥SWH-G02-C88M-A220-10
臺(tái)灣北部精機(jī)電磁換向閥SWH-G02-C9-A220-10
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臺(tái)灣北部精機(jī)電磁換向閥SWH-G02-C3B-A220-10
臺(tái)灣北部精機(jī)電磁換向閥SWH-G02-C4B-A220-10
臺(tái)灣北部精機(jī)電磁換向閥SWH-G02-C40B-A220-10
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臺(tái)灣北部精機(jī)電磁換向閥SWH-G02-C8B-A220-10
臺(tái)灣北部精機(jī)電磁換向閥SWH-G02-C9B-A220-10


北部精機(jī)電磁換向閥SWH-G02-N2-A220-10
北部精機(jī)電磁換向閥SWH-G02-N3-A220-10
北部精機(jī)電磁換向閥SWH-G02-D2-A220-10
北部精機(jī)電磁換向閥SWH-G02-D3-A220-10
北部精機(jī)電磁換向閥SWH-G02-B2-A220-10
北部精機(jī)電磁換向閥SWH-G02-B20-A220-10
北部精機(jī)電磁換向閥SWH-G02-B21-A220-10
北部精機(jī)電磁換向閥SWH-G02-B3-A220-10
北部精機(jī)電磁換向閥SWH-G02-B51-A220-10
北部精機(jī)電磁換向閥SWH-G02-B2S-A220-10
北部精機(jī)電磁換向閥SWH-G02-B3S-A220-10
北部精機(jī)電磁換向閥SWH-G02-B4S-A220-10
北部精機(jī)電磁換向閥SWH-G02-B20S-A220-10
北部精機(jī)電磁換向閥SWH-G02-B51S-A220-10
北部精機(jī)電磁換向閥SWH-G02-C2BS-A220-10
北部精機(jī)電磁換向閥SWH-G02-C3BS-A220-10
北部精機(jī)電磁換向閥SWH-G02-C4BS-A220-10

SWH-G02-C2-D24-20
SWH-G02-C2M-D24-20
SWH-G02-C22M-D24-20
SWH-G02-C23-D24-20
SWH-G02-C3-D24-20
SWH-G02-C3M-D24-20
SWH-G02-C4-D24-20
SWH-G02-C4M-D24-20
SWH-G02-C40-D24-20
SWH-G02-C40M-D24-20
SWH-G02-C48-D24-20
SWH-G02-C48M-D24-20
SWH-G02-C5-D24-20
SWH-G02-C6-D24-20
SWH-G02-C6M-D24-20
SWH-G02-C60-D24-20
SWH-G02-C60M-D24-20
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SWH-G02-C8M-D24-20
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SWH-G02-C7B-D24-20
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SWH-G02-N3-D24-20
SWH-G02-D2-D24-20
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SWH-G02-B2-D24-20
SWH-G02-B20-D24-20
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SWH-G02-B3S-D24-20
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SWH-G02-B20S-D24-20
SWH-G02-B51S-D24-20
SWH-G02-C2BS-D24-20
SWH-G02-C3BS-D24-20
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SWH-G02-C2-A220-20
SWH-G02-C2M-A220-20
SWH-G02-C22M-A220-20
SWH-G02-C23-A220-20
SWH-G02-C3-A220-20
SWH-G02-C3M-A220-20
SWH-G02-C4-A220-20
SWH-G02-C4M-A220-20
SWH-G02-C40-A220-20
SWH-G02-C40M-A220-20
SWH-G02-C48-A220-20
SWH-G02-C48M-A220-20
SWH-G02-C5-A220-20
SWH-G02-C6-A220-20
SWH-G02-C6M-A220-20
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SWH-G02-C60M-A220-20
SWH-G02-C7-A220-20
SWH-G02-C8-A220-20
SWH-G02-C8M-A220-20
SWH-G02-C88M-A220-20
SWH-G02-C9-A220-20
SWH-G02-C92-A220-20
SWH-G02-C2B-A220-20
SWH-G02-C3B-A220-20
SWH-G02-C4B-A220-20
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SWH-G02-C60B-A220-20
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SWH-G02-N3-A220-20
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SWH-G02-B20-A220-20
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SWH-G02-B3-A220-20
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SWH-G02-C4BS-A220-20

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SWH-G03-C2M-D24-10
SWH-G03-C22M-D24-10
SWH-G03-C23-D24-10
SWH-G03-C3-D24-10
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SWH-G03-C4-D24-10
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SWH-G03-C6M-D24-10
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SWH-G03-C7-D24-10
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SWH-G03-B2-A220-10
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SWH-G03-B3-A220-10
SWH-G03-B51-A220-10
SWH-G03-B2S-A220-10
SWH-G03-B3S-A220-10
SWH-G03-B4S-A220-10
SWH-G03-B20S-A220-10
SWH-G03-B51S-A220-10
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SWH-G03-C3BS-A220-10
SWH-G03-C4BS-A220-10
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SWH-G03-C2M-D24-20
SWH-G03-C22M-D24-20
SWH-G03-C23-D24-20
SWH-G03-C3-D24-20
SWH-G03-C3M-D24-20
SWH-G03-C4-D24-20
SWH-G03-C4M-D24-20
SWH-G03-C40-D24-20
SWH-G03-C40M-D24-20
SWH-G03-C48-D24-20
SWH-G03-C48M-D24-20
SWH-G03-C5-D24-20
SWH-G03-C6-D24-20
SWH-G03-C6M-D24-20
SWH-G03-C60-D24-20
SWH-G03-C60M-D24-20
SWH-G03-C7-D24-20
SWH-G03-C8-D24-20
SWH-G03-C8M-D24-20
SWH-G03-C88M-D24-20
SWH-G03-C9-D24-20
SWH-G03-C92-D24-20
SWH-G03-C2B-D24-20
SWH-G03-C3B-D24-20
SWH-G03-C4B-D24-20
SWH-G03-C40B-D24-20
SWH-G03-C5B-D24-20
SWH-G03-C6B-D24-20
SWH-G03-C60B-D24-20
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SWH-G03-B3-D24-20
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SWH-G03-C4-A220-20
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SWH-G03-B3-A220-20
SWH-G03-B51-A220-20
SWH-G03-B2S-A220-20
SWH-G03-B3S-A220-20
SWH-G03-B4S-A220-20
SWH-G03-B20S-A220-20
SWH-G03-B51S-A220-20
SWH-G03-C2BS-A220-20
SWH-G03-C3BS-A220-20
SWH-G03-C4BS-A220-20