| Model No | HP | Display in LPM | Vacuum in MM/HG | OIL |
| JHV1-50 | 1/4 | 50 | 760 | 1 |
| JHV1-100 | 1/4 | 100 | 760 | 1.5 |
| JHV1-200 | 1/2 | 200 | 760 | 2 |
| JHV1-325 | 1 | 325 | 760 | 3 |
| JHV1-600 | 1*1/2 | 600 | 760 | 5 |
| JHV1-1000 | 3 | 1000 | 760 | 9 |
| JHV1-2000 | 5 | 2000 | 760 | 18 |
| JHV1-3000 | 7.5 | 3000 | 760 | 20 |
| JHV1-5000 | 10 | 5000 | 760 | 32 |
| JHV1-7500 | 12.5 | 7500 | 760 | 38 |
| Model No | HP | Display in LPM | Vacuum in MM/HG | OIL |
| JHV2-50 | 1/4 | 50 | 0.005 | 1 |
| JHV2-100 | 1/4 | 100 | 0.005 | 1.5 |
| JHV2-200 | 1/2 | 200 | 0.005 | 2 |
| JHV2-325 | 1 | 325 | 0.005 | 3 |
| JHV2-600 | 2 | 600 | 0.005 | 5 |
| JHV2-1000 | 3 | 1000 | 0.005 | 9 |
| JHV2-2000 | 5 | 2000 | 0.005 | 18 |
| JHV2-3000 | 7.5 | 3000 | 0.005 | 20 |
| JHV2-5000 | 10 | 5000 | 0.005 | 35 |
| JHV2-7500 | 12.5 | 7500 | 0.005 | 40 |
