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Roots Vacuum Pump
Roots vacuum pump refers to a mechanical vacuum pump with a pair of 8-shaped rotors rotating synchronously at high speed. There are gaps between the rotor and the rotor, between the rotor and the pump body, and between the rotor and the side cover. There is no friction in the working chamber and no lubrication is required. Therefore, the operation is stable, the noise is low, the use is more reliable, and it can operate under high pressure difference for a long time. This pump cannot be used for air extraction alone, and only the front vacuum pump in series can be used。
关键词：
所属分类：
干式螺杆泵/罗茨泵/气冷罗茨泵
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Roots Vacuum Pump
Structure and Characters
Roots vacuum pump refers to a mechanical vacuum pump with a pair of 8-shaped rotors rotating synchronously at high speed. There are gaps between the rotor and the rotor, between the rotor and the pump body, and between the rotor and the side cover. There is no friction in the working chamber and no lubrication is required. Therefore, the operation is stable, the noise is low, the use is more reliable, and it can operate under high pressure difference for a long time. This pump cannot be used for air extraction alone, and only the front vacuum pump in series can be used。
Performance Characters:
1.Large pumping speed in a wide pressure range (1-1x104pa).
2.No oil in the pump chamber, which avoids oil steam polluting the vacuum system.
3.Low vibration and noise.
4.The mechanical friction loss is small, so the driving power is small.
5.Easy to maintain and repair, low cost and long service life.
6.Extractable condensable gas
7.Cannot be used alone, and a booster pump must be configured. It is not allowed to start under atmospheric pressure. It can only be started when the front stage pump pumps the roots pump pressure to the allowable inlet pressure. The front stage pumps are generally water ring vacuum pumps, rotary vane pumps, dry vacuum pumps, etc.
Performance Parameter
|
Model |
Pumping Speed(/S） |
Ultra-Pressure(«Pa) |
Max. different Press (Pa) |
RPM |
Motor Power(kw) |
Inlet Size(mm) |
Outlet Size(mm) |
Noise dB(A) |
|
ZJ-30 |
30 |
6x10-2 |
5300 |
2940 |
0.75 |
50 |
40 |
«78 |
|
ZJ-70 |
70 |
5300 |
2940 |
1.1 |
80 |
50 |
«78 |
|
|
ZJ-150 |
150 |
4500 |
2940 |
2.2 |
100 |
80 |
«82 |
|
|
ZJ-300 |
300 |
4500 |
2940 |
4 |
150 |
100 |
«83 |
|
|
ZJ-600 |
600 |
4000 |
2940 |
5.5 |
200 |
150 |
«86 |
|
|
ZJ-1200 |
1200 |
4000 |
2940 |
11 |
250 |
200 |
«90 |
Roots Pump Dimensions
|
Model |
Overall dimension（mm） |
Foundation（mm） |
Inlet and outlet positions（mm) |
|||||||
|
|
L |
B |
H |
L1 |
B1 |
n-d |
L2 |
B2 |
H1 |
H2 |
|
ZJ-30 |
1018 |
440 |
370 |
315 |
275 |
4-φ14 |
157.5 |
137.5 |
20 |
180 |
|
ZJ-70 |
|
|
|
|
|
|
|
|
|
|
|
ZJ-150 |
|
|
|
|
|
|
|
|
|
|
|
ZJ-300 |
|
|
|
|
|
|
|
|
|
|
|
ZJ-600 |
|
|
|
|
|
|
|
|
|
|
|
ZJ-1200 |
|
|
|
|
|
|
|
|
|
|
|
Model |
Overall dimension（mm） |
Foundation（mm） |
Inlet and outlet positions（mm) |
|||||||
|
|
L |
B |
H |
L1 |
B1 |
n-d |
L2 |
B2 |
H1 |
H2 |
|
ZJ-150 |
1018 |
440 |
370 |
315 |
275 |
4-φ14 |
157.5 |
137.5 |
20 |
180 |
|
ZJ-300 |
1078 |
440 |
370 |
315 |
275 |
4-φ14 |
157.5 |
137.5 |
20 |
180 |
|
ZJ-600 |
1317 |
540 |
475 |
430 |
343 |
4-φ18 |
215 |
171.5 |
10 |
225 |
|
ZJ-1200 |
1540 |
645 |
579 |
480 |
430 |
4-φ20 |
240 |
215 |
34 |
282 |
|
ZJ-2500 |
2040 |
1040 |
878 |
390 |
762 |
4-φ32 |
195 |
381 |
30 |
445 |
|
ZJ-3750 |
2345 |
1040 |
878 |
590 |
762 |
4-φ32 |
295 |
381 |
30 |
445 |
|
ZJ-5000 |
2585 |
1230 |
1128 |
545 |
940 |
4-φ36 |
272.5 |
470 |
50 |
578 |
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