ZJ Series Roots Vacuum Pump is a positive displacement pump, also known as mechanical booster pump, which is one of the main equipment to obtain the middle and high vacuum degree. Its working principle is similar to roots blower, which use two figure 8 rotor synchronous rotation in the pump shell, so as to complete the suction and exhaust process.
Features:
The main advantage of ZJ series roots vacuum pump is a high pumping speed at the lower inlet pressure with high ultimate vacuum. Since the pump running parts have no contact, such as rotors and the end cover, so the pump performance is stable and long service time. low maintenance cost
Applications:
They’re widely used in vacuum smelting, vacuum welding, vacuum casting, vacuum coating, vacuum drying, vacuum dynamic experiment and chemical pharmaceutical, electric vacuum device manufacturing industries.
In view of the chemical, pharmaceutical and other industries require huge vapor degassing capablity. the sealing structure of ZJ roots vacuum pump chamber and the bearing chamber has improved, which greatly reducing the bearing cavity and gear cavity oil emulsification. Thus, ZJ roots vacuum pump is more suitable for pumping large quantities of water vapor and solvent with water ring vacuum pump.
| Model | ZJ-150 | ZJ-300 | ZJ-600 | ZJ-1200 | |
| Pumping speed（L/s） | 150 | 300 | 600 | 1200 | |
| Ultimate pressure （Pa） |
1stage piston pump as backing pump | 5×10-2 | |||
| 2 stage piston pump as backing pump | 1×10-1 | ||||
| Max. allowable diff. pressure（Pa） | 8×103 | 5×103 | |||
| Motor rotary speed（RPM） | 3000 | ||||
| Suitable motor power（kW） | 2.2 | 4 | 7.5 | 11 | |
| Flange size | Inlet（mm） | 100 | 150 | 200 | 250 |
| outlet（mm） | 100 | 150 | 200 | 200 | |
| Cooling water consumption（L/h） | 120 | 150 | |||
| Allowable temperature（℃） | 100 | ||||
| Vacuum pump oil | 100# | ||||
| Weight(without motor)（kg） | 195 | 250 | 760 | 860 | |
Remark: The ultimate vacuum is detected by the Mcleod vacuum meter. If other vacuum gauges are used for detection, such as the Pirani vacuum gauge, the vacuum degree will decay by an order of magnitude.
If possible, kindly suggest please your working industry/process, working pressure, working medium, etc. Given detailed request helps to gain better-matched customized solution. Thanks for your patience.
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