Roots vacuum pumps are designed to create high and medium vacuum. The principle of Roots pump operation is baed on input and output of gas due to the rotation of two rotors inside the pump. The Roots pump cannot exhaust gas directly into the atmosphere; therefore, it is usually used in combination with a backing pump.
Some of the possible fields of application of Roots pumps are:
- vacuum degassing;
- vacuum melting;
- vacuum treatment of molten steel;
- vacuum heat treatment in metallurgy;
- chemical industry;
- medical applications;
- food production;
- motor manufacturing etc.
Specifications
| № |
Model |
GC-70 |
GC-150 |
GC-300 |
GC-600 |
GC-1200 |
||
| 1 | Nominal pump rate | 50 Hz |
m3/hour |
250 |
540 |
1080 |
2160 |
4320 |
| 60 Hz |
300 |
650 |
1300 |
2590 |
5200 |
|||
| 2 | Ultimate pressure |
Pa |
3×10-2 |
3×10-2 |
3×10-2 |
3×10-2 |
3×10-2 |
|
| 3 | Permissible pressure difference |
hPa |
100 |
80 |
60 |
45 |
53 |
|
| 4 | Ambient temperature range |
°C |
5-40 |
5-40 |
5-40 |
5-40 |
5-40 |
|
| 5 | Motor voltage, 50 Hz |
V |
380 |
380 |
380 |
380 |
380 |
|
| 6 | Motor power, 50 Hz |
kW |
1.1 |
2.2 |
4 |
7.5 |
11 |
|
| 7 | Rotation speed, 50 Hz |
rpm |
2825 |
2840 |
2890 |
2900 |
2900 |
|
| 8 | Protection | IP |
44 |
44 |
44 |
44 |
44 |
|
| 9 | Gearbox oil volume |
liters |
0.8 |
2.8 |
2.8 |
7.5 |
7.5 |
|
| 10 | Internal flange diameter | Inlet |
mm |
80 50 |
100 |
150 |
200 |
250 200 |
| outlet | ||||||||
| 11 | Cooling water supply |
l/hour |
/ |
/ |
/ |
150 |
150 |
|
| 12 | Weight with motor |
kg |
80 |
180 |
245 |
575 |
800 |
|
| 13 | Packaged weight |
kg |
110 |
240 |
315 |
660 |
950 |
|
| 14 | Noise (at ultimate pressure) |
dB |
65 |
68 |
72 |
75 |
78 |
|