Operating manual liquid ring vacuum pumps and compressors series TRH - TRS - TRM - TRV - SA & Systems type HYDROSYS - OILSYS
13
7.7 - SERVICE LIQUID (H
2
O at 15°C) FLOW (in m
3
/h) FOR VACUUM PUMPS
The listed values are referred to the system with “Once-through” service liquid, handling dry air at 20°C (for more
specific data see the pump’s performance curve).
To reduce the amount of service liquid flow read the information given in chapter 19.
If the pump is handling saturated or condensable gases at relatively high temperatures, there will be condensation
inside the pump. In those cases the service liquid flow listed below can be increased up to 25% to reduce the discharge
temperature and minimise the danger of pump cavitation at high vacuum.
Tab. 2
PUMP
MODEL
SUCTION PRESSURE (in mbar)
PUMP
SUCTION PRESSURE (in mbar)
33 - 200
> 200 - 600
> 600
MODEL
200 - 600
> 600
TRH 32-4
0,20
0,20
0,16
TRS 32-20
0,34
0,24
TRH 32-20
0,36
0,30
0,28
TRS 32-50
TRH 32-45
TRS 40-55
0,78
0,44
TRH 32-60
0,90
0,70
0,60
TRS 40-80
TRH 40-110
TRS 40-100
0,96
0,57
TRH 40-140
TRS 40-150
1,17
0,72
TRH 40-190
1,00
0,85
0,70
TRS 50-220
2,40
1,29
TRH 50-280
2,40
1,70
0,90
TRS 100-550
2,90
1,74
TRH 50-340
3,00
2,22
1,20
TRS 100-700
3,30
2,10
TRH 50-420
3,60
2,76
1,60
TRS 100-980
9,00
5,40
TRH 80-600
2,50
1,98
1,30
TRS 125-1250
8,70
4,20
TRH 80-750
3,00
2,40
1,60
TRS 125-1550
9,90
4,50
TRH 100-870
7,40
5,70
3,80
TRS 200-1950
18,00
11,40
TRH 100-1260
TRS 200-2500
20,10
11,70
TRH 100-1600
TRS 200-3100
25,80
17,40
TRH 150-2000
12,00
9,60
6,00
TRH 150-2600
13,20
11,10
6,60
TRH 150-3100
16,20
14,10
8,70
PUMP
MODEL
SUCTION PRESSURE (in mbar)
33 - 200
> 200 - 600
> 600
TRM 25-30
0,24
0,18
0,12
TRMX & TRVX 257
0,30
0,23
TRM 32-50
0,48
0,24
0,15
TRM 32-75
0,72
0,41
0,34
TRMX 327
0,63
0,53
0,36
TRM-TRV 40-110
1,20
0,80
0,50
TRM-TRV 40-150
0,54
TRM-TRV 40-200
1,30
0,90
0,60
TRMX & TRVX 400
1,14
0,72
0,54
TRM-TRV 50-300
1,60
1,20
0,80
TRV 65-300
TRV 65-450
2,40
1,68
0,90
TRVX 650
TRVX 1000
2,60
1,80
1,30
TRVX 1250
5,25
3,64
2,76
TRVN 40-70
0,25
0,23
0,21
TRVN 40-110
0,50
0,49
0,45
TRVN 65-250
2,00
1,80
1,00
TRVN 80-350
2,0
1,95
1,85
TRVN 80-500
3,00
2,50
2,00
TRVN 80-600
3,4
3,1
2,7
For the above pumps running as compressors without the specific performance curves, please contact
POMPETRAVAINI.
7.8 - SERVICE LIQUID FLOW (H
2
O at 15°C) AND PRESSURE FOR COMPRESSORS SERIES “SA”
Values are applicable when the compressor suction is barometric pressure (1013 mbar) and the gas is air at 20°C.
SA0E3U
= 0,90 m
3
/h
SA0G2D
= 1,00 m
3
/h
constant throughout the field work
SA0G2G
= 1,50 m
3
/h
The minimum pressure inlet of the service liquid should be (according to the use of the compressor):
SA0E3U
= 0,90 m
3
/h
at minimum pressure of 2,5 to 3 bar
SA0G2D
= 1,00 m
3
/h at minimum pressure of 2 to 3,5 bar
SA0G2G
= 1,50 m
3
/h at minimum pressure of 2 to 3,5 bar
}