2XZ-2B/4B型直联旋片真空泵特点:Features:◆2XZ-2B/4B型直联旋片真空泵，采用了本厂获国家专利权的先进结构Our factory’s advanced structure which won national patent is adopted for this pump.◆极限真空度高，抽气速率高High ultimate vacuum and high pumping rate◆不喷油、停泵不返油Without oil spout and without back-streaming when pump stopped◆气镇性能好Good performance of gas-ballast◆换油周期长Long drain period◆噪音低，体积小、重量轻Low noise, small and light◆ 风冷，泵温低Wind cooling, Low pump temperature◆性能一致性好，运转可靠Consistent performance & reliable operation