As Roots vacuum pump is gradually used by more people, more and more applications, more and more manufacturers. Different manufacturers will produce different types of products to increase the competitiveness of their products in the market. What are the specific Roots vacuum pump models?
ZJ Roots Vacuum Pump
Roots vacuum pump applications:
1. vacuum vapor phase drying
2. vacuum exhaust
3. vacuum smelting
4. vacuum coating
5. vacuum heat treatment
6. vacuum impregnation
7. vacuum dedusting
8. vacuum freezing.
| 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 | |
Common type: Gas can not be discharged directly into the atmosphere alone. When used, it needs to be connected in series with the front vacuum pump, and the exhausted gas is discharged into the atmosphere through the front vacuum pump.
1.general type pump: the maximum allowable pressure difference is in the range of 2000Pa 10000pa.
2. Pump with bypass valve: the allowable pressure difference is limited to the range of 2000Pa 4000Pa.
When the pressure difference exceeds the prescribed value of each specifications of the pump, the by-pass valve will automatically jack, the gas at the pump outlet through the by-pass valve back into the pump inlet, so that the safe operation of the pump.
Direct exhaust air type: gas can be directly discharged into the atmosphere, the maximum allowable pressure difference of this pump can reach 88000Pa. If carefully distinguished, it can be divided into:
1. Air cooled straight row roots pump
2. Water-cooled direct-exhaust atmospheric Roots vacuum pump: low vacuum direct-exhaust atmospheric dry roots pump and wet roots pump, medium vacuum roots pump, high vacuum roots pump.
Now the main product types are the above two types, and with technological innovation, product types, Roots vacuum pump model is more specific, can be more perfect to complete the work of everyone needs.
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.
your request will be responsed within 3 hours, kindly pay attention to your email please.
