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With by-pass valve
 

Roots vacuum pumps series GMa HV complete with bypass valve are mainly used coupled to our lubricated vacuum pumps to speed up pumping down times and to achieve vacuum level up to 0,01 mbar abs.

Bypass valve allows to start the Roots pump at the same time as the vane vacuum pump, protecting the Roots pump from any operation at high pressure.

 


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Performance:

Model Nominal capacity Rpm Motor
power 		Noise
level		 Weight (1) Absolute ultimate vacuum
m3/h min -1 Kw 1mbar db(A) Kg mbar (abs)
GMa 11.3 HV-BP
50 Hz
60 Hz
500
600
2950
3600
1,5
2,2
71
72
178
184
0,01
GMa 11.4 HV-BP
50 Hz
60 Hz
730
880
2950
3600
2,2
3
71
72
184
189
0,01
GMa 12.5 HV-BP
50 Hz
60 Hz
1000
1200
2950
3600
3
4
72
73
232
246
0,01
GMa 12.6 HV-BP
50 Hz
60 Hz
1400
1700
2950
3600
4
5,5
72
73
295
317
0,01
GMa 13.f7 HV-BP
50 Hz
60 Hz
2000
2420
2950
3600
5,5
7,5
75
76
387
410
0,01
GMa 13.8 HV-BP
50 Hz
60 Hz
2840
3420
2950
3600
7,5
11
75
76
513
526
0,01

 

 

 

Dimensions:
Model
A
B
C
D
E
F
G
H
I
L
M
N
O
P
R
S
T
U
V
 
 50 Hz
 60 Hz
50 Hz
60 Hz
50 Hz
60 Hz
GMa 11.3 HV-BP
928
953
418
446
M12
397
250
280
648
673
275
155
228
218
57
220
10
3”G
161
392
392
1/4”G
GMa 11.4 HV-BP
1053
1098
443
446
M12
430
250
330
723
768
275
168
228
218
57
220
10
3”G
161
442
454
1/4”G
GMa 12.5 HV-BP
1099
1108
463
496
M12
440
300
325
774
783
275
188
258
238
57
220
20
3”G
181
460
460
1/4”G
GMa 12.6 HV-BP
1220
1277
496
510
M12
552
300
381
839
896
293
203
258
252
57
250
 6
3”G
195
516
536
1/4”G
GMa 13.f7 HV-BP
1272
1272
550
633
M12
560
380
383
889
889
320
230
323
310
79
280
13
4”G
232
529
529
1/4”G
GMa 13.8 HV-BP
1412
1575
563
633
M12
700
380
453
959
1122
320
243
323
310
91
280
13
4”G
232
599
627
1/4”G


 

旭豪真空科技有限公司
SHANG HAUR INDUSTRIAL CO., LTD.
台北縣土城市大安路142號
NO.142,DAH AN Road, Tu Cheng City,
TAIPEI HSIEN, TAIWAN, R.O.C.
TEL:02-8076-3000　FAX:02-8076-3300
E-MAIL:sh.vacuum@msa.hinet.net