STOKES迴轉活塞式真空幫浦
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| Model | 146H | 148H | 149H | 149HS | 212J | 412J | 612J | 912H | |
| Displacement | Cfm | 30 | 50 | 80 | 100 | 150 | 300 | 600 | 728 |
| m3/hr | 50 | 85 | 135 | 170 | 255 | 510 | 1020 | 1240 | |
| Pump Speed(Rpm) | 800 | 610 | 490 | 615 | 500 | 490 | 490 | 438 | |
| Motor(Hp) | 1-1/2 | 2 | 3 | 5 | 1-1/2 | 10 | 10(2) | 30 | |
| Pipe Connections Suction Discharge | In.(Flg) | 2 | 1-1/2 | 2 | 2 | 3 | 4 | 6 | 6 |
| In.(NPT) | 1-1/4 | 1-1/2 | 1-1/2 | 1-1/2 | 2 | 3 | 3(2) | 5Flg | |