详细说明
罗茨水环真空机组是以罗茨真空泵为主泵，水环真空泵作前级泵的成套设备。它除了可以用来抽除一般气体外，还可以抽吸含水有水分、有机溶剂或少量粉尘的气体。罗茨水环真空机组具有高真空度及在高真空度下抽速大的特点。
罗茨水环机组的前级泵的工作液多采用水，也可采用有机溶剂（可用甲醇、乙醇、丙酮等有机溶剂）或其它液体，将前级泵作为闭路循环系统使用，可减少对环境的污染，同时大大提高了对有机溶剂的回收。其极限真空度由工作液的饱和蒸汽压决定。
JZJ2S 系列罗茨水环真空机组参数
| 机组型号 Model of system | 泵型号 Model of pump | 抽速 （L/s） Pumping speed | 极限压力 （Pa） Ultimate pressure | 总功率 kw Total power |
| 主泵 The major pump | 前级泵 The backing pumps |
| JZJ2S30-1 | ZJ-30 | 2SK-1.5 | 30 | 2.67×102 | 4.75 |
| JZJ2S70-2 | ZJ-70 | 2SK-1.5 | 70 | 2.67×102 | 5.5 |
| JZJ2S70-1 | ZJ-70 | 2SK-3 | 70 | 2.67×102 | 9 |
| JZJ2S150-2 | ZJ-150 | 2SK-3 | 150 | 2.67×102 | 10.5 |
| JZJ2S150-1 | ZJ-150 | 2SK-6 | 150 | 2.67×102 | 18 |
| JZJ2S300-2 | ZJ-300 | 2SK-6 | 300 | 2.67×102 | 19 |
| JZJ2S300-1 | ZJ-300 | 2SK-12 | 300 | 2.67×102 | 26 |
| JZJ2S600-2A | ZJ-600 | 2SK-12 | 600 | 2.67×102 | 27.5 |
| JZJ2S600-2B | ZJ-600 | 2SK-20 | 600 | 2.67×102 | 42.5 |
| JZJ2S70-2.1 | ZJ-70 | ZJ-30,2SK-1.5 | 70 | 6.7×10 | 6.25 |
| JZJ2S150-2.1 | ZJ-150 | ZJ-70,2SK-3 | 150 | 6.7×10 | 12 |
| JZJ2S150-2.2 | ZJ-150 | ZJ-70,2SK-1.5 | 150 | 6.7×10 | 8.5 |
| JZJ2S300-2.1 | ZJ-300 | ZJ-150,2SK-6 | 300 | 6.7×10 | 22 |
| JZJ2S300-2.1 | ZJ-300 | ZJ-150,2SK-3 | 300 | 6.7×10 | 14.5 |
| JZJ2S300-4.2 | ZJ-300 | ZJ-70,2SK-1.5 | 300 | 6.7×10 | 9.5 |
| JZJ2S300-4.1 | ZJ-300 | ZJ-70,2SK-3 | 300 | 6.7×10 | 13 |
| JZJ2S600-2.1 | ZJ-600 | ZJ-300,2SK-12 | 600 | 6.7×10 | 33.5 |
| JZJ2S600-2.2 | ZJ-600 | ZJ-300,2SK-6 | 600 | 6.7×10 | 26.5 |
| JZJ2S600-4.2 | ZJ-600 | ZJ-150,2SK-3 | 600 | 6.7×10 | 16 |
| JZJ2S600-4.1 | ZJ-600 | ZJ-150,2SK-6 | 600 | 6.7×10 | 23.5 |
| JZJ2S1200-2.1 | ZJ-1200 | ZJ-600,2SK-20 | 1200 | 6.7×10 | 63.5 |
| JZJ2S1200-2.2 | ZJ-1200 | ZJ-600,2SK-12 | 1200 | 6.7×10 | 40.5 |
| JZJ2S1200-4.2 | ZJ-1200 | ZJ-300,2SK-6 | 1200 | 6.7×10 | 30 |
| JZJ2S1200-4.1 | ZJ-1200 | ZJ-300,2SK-12 | 1200 | 6.7×10 | 37 |
| JZJ2S2500-1.2A | ZJ-2500 | ZJ-600,2SK-12 | 2500 | 6.7×10 | 44.5 |
| JZJ2S2500-1.2B | ZJ-2500 | ZJ-600,2SK-20 | 2500 | 6.7×10 | 59.5 |
| JZJ2S70-2.2.1 | ZJ-70 | ZJ-30,ZJ-30,2SK-1.5 | 70 | 5×10-1 | 7 |
| JZJ2S150-2.2.1 | ZJ-150 | ZJ-70,ZJ-30,2SK-1.5 | 150 | 5×10-1 | 9.25 |
| JZJ2S300-2.2.1 | ZJ-300 | ZJ-150,ZJ-70,2SK-3 | 300 | 5×10-1 | 16 |
| JZJ2S300-2.2.1 | ZJ-300 | ZJ-70,ZJ-30,2SK-1.5 | 300 | 5×10-1 | 10.25 |
| JZJ2S300-4.2.1 | ZJ-300 | ZJ-300,ZJ-150,2SK-6 | 300 | 5×10-1 | 20 |
| JZJ2S600-2.2.2 | ZJ-600 | ZJ-300,ZJ-150,2SK-3 | 600 | 5×10-1 | 20.5 |
| JZJ2S600-4.2.1 | ZJ-600 | ZJ-150,ZJ-70,2SK-3 | 600 | 5×10-1 | 17.5 |
| JZJ2S1200-2.2.2 | ZJ-1200 | ZJ-600,ZJ-300,2SK-6 | 1200 | 5×10-1 | 37.5 |
| JZJ2S1200-4.2.1 | ZJ-1200 | ZJ-300,ZJ-150,2SK-6 | 1200 | 5×10-1 | 33 |
| JZJ2S2500-4.2.1 | ZJ-2500 | ZJ-600,ZJ-300,2SK-12 | 2500 | 5×10-1 | 43.5 |