首先根據(jù)液壓系統(tǒng)的需要確定用漬的清潔度等級，再根據(jù)此清潔度等級按符表選擇濾油器的過濾精度。工程機械上zui常用的液壓油濾芯名義過濾清度為10μm。 液壓油清潔度濾芯的名義過濾精度（μm）應(yīng)用范圍 。評定液壓油濾芯的zui主要準則是按ISO4527-1981E（多通試驗）測定的β值，即讓混入標準試驗粉末的油多次循環(huán)通過濾油器，其進油口和出油口兩側(cè)的粒子數(shù)之比。流量特性 濾芯通過油液的流量與壓力降是流量特性的重要參數(shù)，應(yīng)按ISO3968—91標準進行流量特性試驗，以繪制流量-壓力降特性曲線圖。在額定供油壓力下，總壓降（濾殼壓降與濾芯壓降之和）一般應(yīng)在0.2MPa以下。濾芯強度 應(yīng)按ISO2941-83標準進行破裂-抗沖擊試驗。濾芯損壞時急劇下降的壓力差應(yīng)大于規(guī)定值。流動疲勞特性應(yīng)按ISO3724—90標準進行10萬次循環(huán)的疲勞試驗。賀德克（HYDAC）一種高壓油濾芯，在液壓系統(tǒng)中，用于濾除工作介質(zhì)中的固體顆粒及膠狀物質(zhì)，有效控制工作介質(zhì)的污染度。

固安縣百盛濾清器廠供應(yīng)賀德克濾芯型號：1300R
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