賀德克濾芯采用德國進(jìn)口過濾玻纖材料加工，技標(biāo)如下：
材料代號(hào)G，E 濾芯壓塌、破裂耐受力按照ISO 2941：30bar 210bar(僅用材料代號(hào)H，F(xiàn) 濾芯壓塌、破裂耐受力按照ISO 2941： 于高壓過濾器) HYDAC賀德克濾芯
HYDAC賀德克濾芯0030D020P，0030D025W，0030D010BN，0030D05BN/HC,0030D003BN3HC，0060D020P，0060D025W，0060D010BN，0060D005BN/HC，0060D003BN3HC，0110D020P，0110D025W 01100D010BN，0110D005BN/HC，0110D003BN3HC，0140D020P,0140D025W，01400D010BN，0140D005BN/HC，0140D003BN3HC,0160D020P，0030R020P，0030R025W，0030R010BN 0030R5BN/HC，賀德克濾芯0030R03BN3HC，0060R20P，0060R25W，0060R10BN,0060R05BN/HC，0060R03BN3HC，0110R20P，0110R25W，0110R010BN,0110R05BN/HC，0110R03BN3HC，0160R020P，0160R025W，0160R010BN，0160R005BN/HC，0160R003BN3HC，0240R020P，0160D025W，01600D010BN，0160D005BN/HC，0160D003BN3HC,0240D020P，0240D025W，02400D010BN，0240D005BN/HC,0240D003BN3HC，0280D020P，0280D025W，02800D010BN，0280D005BN/HC，0280D003BN3HC，0330D020P，0330D025W,03300D010BN，0330D005BN/HC，0330D003BN3HC，0480D020P,0480D025W，04800D010BN，0480D005BN/HC，0480D003BN3HC, 賀德克濾芯0500D020P，0500D025W，05000D010BN，0500D005BN/HC,0500D003BN3HC，0660D020P，0660D025W，06600D010BN 0660D005BN/HC，0660D003BN3HC，0990D020P，0990D025W,09900D010BN，0990D005BN/HC，0990D003BN3HC，0240R025W,0240R010BN，0240R005BN/HC，0240R003BN3HC，0330R020P,0330R025W，賀德克濾芯0330RD010BN，0330R005BN/HC，0330R003BN3HC,0660R020P，0660R025W，0600R010BN，0660R005BN/HC 0660R003BN3HC，0850R020P，0850R025W，0850R010BN，0850R005BN/HC，0850R003BN3HC，0950R020P，0950R025W,0950RD010BN，0950R005BN/HC，0950R003BN3HC,1300R020P，1300R025W，1300R010BN，1300R005BN/HC,1300R003BN3HC，1320R020P，1320R025W，1320R010BN,1320R005BN/HC，1320R003BN3HC，1700R20P，1700R025W 1700R010BN，1700R005BN/HC，1700R003BN3HC,2600R020P，2600R025W，2600R010BN，2600R005BN/HC,2600R003BN3HC替代進(jìn)口HYDAC系列濾清器如下：0060D003BHHC 0060D003BN3HC 0060D003BNHC 0060D005BHHC 0060D005BN3HC 0060D005BNHC 0060D010BH3HC 0060D010BHHC 0060D010BN3HC 0060D010BNHC 0060D020BHHC 0060D020BN3HC 0060D020BNHC 0060D005BH3HC 0060D020BH3HC 0060D020BH3HCV 0060D003BHHC 0060D003BNHC 0060D005BHHC 0060D005BNHC 0060D010BHHC 0060D010BNHC 0060D020BHHC 0060D020BNHC 0110D003BH3HC 0110D003BH3HCV 0110D003BHHC 0110D003BN3HC 0110D003BNHC 0110D003BNHCV 0110D005BHHC 0110D005BHHCV 0110D005BN3HC 0110D005BNHC 0110D010BH3HC 0110D010BHHC 0110D010BN3HC 0110D010BNHC 0110D020BHHC 0110D020BN3HC 0110D020BNHC 0110D005BH3HC 0110D020BH3HC 0160D003BH3HC 0160D003BHHC 0160D003BN3HC 0160D003BNHC 0160D005BH3HC 0160D005BHHC 0160D005BN3HC 0160D005BNHC 0160D010BH3HC 0160D010BHHC 0160D010BN3HC 0160D010BNHC 0160D020BH3HC 0160D020BHHC 0160D020BN3HC 0160D020BNHC 0160MA003BN 0160MA005BN 0160MA010BN 0160MA020BN 0180MA003BN 0180MA005BN 0180MA010BN 0180MA020BN 02055751 02055907 02060838 2059434 2059435 2059436 2059437 2059438 2060608 2062446 2063951 0240D003BN3HC 0240D003BN3HCV 0240D003BNHC 0240D005BN3HC 0240D005BNHC 0240D010BN3HC 0240D010BNHC 0240D020BN3HC 0240D020BNHC 0330D005BHHC 0330D020BHHC 0330D003BHHC 0330D003BN3HC 0330D003BNHC 0330D005BN3HC 0330D005BNHC 0330D010BHHC 0330D010BNHC 0330D020BN3HC 0330D020BNHC 0660D005BHHC 0660D010BHHC 0660D020BHHC 0660D003BHHC 0660D003BN3HC 0660D003BNHC 0660D005BN3HC 0660D005BNHC 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一、用環(huán)氧樹脂成形的無機(jī)纖維
二、納污量大
三、具有三維迷宮式構(gòu)造，深度過濾，對(duì)于細(xì)微的顆粒有很高的分離度
四、有優(yōu)異的價(jià)格/性能比
我公司濾芯依照下述國際標(biāo)準(zhǔn)檢驗(yàn)：
一、ISO 2943 與液壓介質(zhì)的相容性
二、ISO 3968 流量特性曲線
三、ISO/DIS 3724 流通疲勞強(qiáng)度
四、ISO/DIS 4572 多次通過試驗(yàn)
五、ISO 2942 質(zhì)量保證（氣泡試驗(yàn)）
六、ISO 3723 端蓋負(fù)載試驗(yàn)
七、ISO 2941 破裂試驗(yàn)
濾芯的評(píng)定：
評(píng)定過濾器的最重要的準(zhǔn)則是β值。此值是按照國際標(biāo)準(zhǔn)ISO/DIS 4572用所謂多次通過試驗(yàn)來測得的。
定義： β值是指上游液體中大于給定尺寸x的顆粒數(shù)與下游液體中大于相同的給定尺寸x的顆粒數(shù)的比值。
Nv Nv=過濾前的尺寸大于x的顆粒數(shù)
βx= Nh=過濾后的尺寸大于x的顆粒數(shù)
Nh X=顆粒尺寸
根據(jù)β值的定義可以很容易地推導(dǎo)出一個(gè)公式，用此公式可以求得某種濾材分離大于一定尺寸的顆粒的效率： β值/過濾效率比值
βx-1 β值 過濾效率
Ex= *100 Ex=效率% 1 0，00%
Βx 2 50，00%
示例：顆粒度 10μm 20 95，00%
9360 208-1 50 98，00%
β10= =208 E10= *100=***% 75 98，67%
45 208 100 99，00%
所有海德克玻璃纖維濾芯其名義過濾精度的β值均大于200。 200 99，50%
1．000 99，90%
10．000 99，99%
過濾器最佳規(guī)格的確定
在進(jìn)行計(jì)算之前，首先要了解下述參數(shù)：
一、 要求濾器達(dá)到的最大流量Q已知（升/分鐘）
二、 工作介質(zhì)的運(yùn)動(dòng)粘度υ已知（mm2/S或cSt）
三、 工作介質(zhì)的密度ρ
四、 過濾精度μm
五、 濾材
最終目的是要選擇一個(gè)合適的濾器，其自身的總壓差ΔΡ總在潔凈狀態(tài)下對(duì)于高壓過濾器不應(yīng)大于ΔΡ最大=***,對(duì)于回油過濾器不應(yīng)大于ΔΡ最大=***。這個(gè)極限值可以保證濾器在實(shí)際使用中達(dá)到流量及壽命的最佳化。
與濾器規(guī)格相關(guān)的額定流量很重要。在選擇濾器時(shí)，它應(yīng)比實(shí)際上已知的流量大一些：
Q額定>Q已知
現(xiàn)在就可以檢查一下，預(yù)選的濾器是否能滿足實(shí)際要求：ΔΡ總≤***(高壓過濾器)以及
ΔΡ總≤***(回油過濾器);理論上的總壓差ΔΡ總為空濾殼的壓差和濾芯的壓差之和。此時(shí)要注意工作介質(zhì)的運(yùn)動(dòng)粘度和密度，因?yàn)楹竺嫠械牧髁壳€是依據(jù)運(yùn)動(dòng)粘度ν=30cSt以及密度ρ=***3測得的。下面是近似計(jì)算總壓差的公式，只需將運(yùn)動(dòng)粘度cSt以及密度kg/dm3的數(shù)值填進(jìn)去即可：
Ρ Ρ υ
ΔΡ總= 。ΔΡ濾殼+ . . ΔΡ濾芯
0．86 *** 30
如果ΔΡ總<ΔΡ最大的條件得到滿足,則表示已選擇到合適的濾器規(guī)格。但是，若ΔΡ總>
ΔΡ最大，則要用下一個(gè)較大規(guī)格的濾器來重新進(jìn)行計(jì)算，直至上述條件得到滿足。
下面用兩個(gè)計(jì)算示例來具體說明。
示例一：回油過濾器的選擇
在一臺(tái)液壓設(shè)備里，回流的油要用一個(gè)濾紙做濾芯的回油過濾器過濾。
注意：若在液壓設(shè)備里有差動(dòng)油缸或蓄能器工作，其最大回流量會(huì)超過泵送量的好幾倍。我們要以這種回流量作為計(jì)算的立足點(diǎn)。
已知：Q已知=90升/分鐘 ν已知=32cSt ρ=***; 過濾精度20μm
預(yù)選:規(guī)格RF030,Q額定=110升/分鐘>Q已知
根據(jù)流量曲線圖求得在額定粘度為30cSt時(shí)的壓力損失:
ΔΡ濾殼=*** ΔΡ濾芯=***
求得實(shí)際上的壓力損失為: *** *** 32
ΔΡ總= ?***+ ? ?***
*** *** 30
ΔΡ總=***<ΔΡ最大=***
此濾器在潔凈狀態(tài)下滿足了ΔΡ總≤ΔΡ最大=***的條件,故已選擇到合適的規(guī)格,沒有必要進(jìn)一步計(jì)算。
本公司經(jīng)營賀德克濾芯，質(zhì)量保證，歡迎咨詢洽談。
