型号Model | 2X—4A | 2X—8A | 2X—15A | 2X—30A | 2X—70A | 备注 Remarks | |||
抽气速率Pumping speed L/s | 4 | 8 | 15 | 30 | 70 | | |||
极限压力Ultimate pressure ≤Pa | 气镇关Without gas ballast | ≤ 6×10-2 | 用座式压缩式水银真空计在泵口测量。 With a Mcleod gauge | ||||||
气镇开With gas ballast | | ≤6×10-1 | ≤1.33 | ||||||
极限全压强 Ultimate total pressure Pa | ≤1 | ~6×10-1 | 用热偶计,电阻计等全压强计计量。 | ||||||
电机功率 Motor power kw | 0.55 | 1.1 | 2.2 | 3 | 5.5 | ||||
泵温升 Temperature arise ℃ | ≤40 | ||||||||
噪声 Lp/Lw dB(A | ≤75 | ≤78 | ≤80 | ≤82 | ≤86 | | |||
进气口径Diaof inlet mm | 25 | 40 | 40 | 65 | 80 | ||||
转速 Speed r.p.m | 450 | 320 | 450 | 420 | |||||
用油量 Oil capacity L | 1.0 | 2.0 | 2.8 | 2.0 | 4.2 | ||||
外型尺寸Overall dimensions cm(L×B×H) | 49×31×41 | 79×43×54 | 79×53×54 | 78×50×56 | 91×65×70 | ||||
重量Weight kg | 59 | 129 | 168 | 194 | 343 |