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1：液壓系統(tǒng)用的介質(zhì)必須過濾，過濾精度至少20um。 
S30P3.0B北京華德單向閥***
2：液壓系統(tǒng)用的油箱必須密封；并加空氣過濾器。 

3：不帶底板。 

4：固定螺栓請按樣板中列的參數(shù)選用。 

5：與閥連接的表面粗糙度要求：0.8。 

6：于閥連接的平面度要求0.01/100mm。 

內(nèi)部抵抗、許容背壓大幅提高。 

油浸式電磁設計，作動平穩(wěn)，噪音小。 

線圈采一體成型，防潮效果佳，散熱好，耐高溫。