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Liquid-Gas Eductors and Water Jet Vacuum Pumps

Liquid-Gas Eductors and Water Jet Vacuum Pumps

Liquid-gas eductor specifications, suction performance, applications, and water jet vacuum pump data.

Liquid Jets Gas Eductor

GW52000 Air Suction Performance Data

PI 0.7 1.1 1.4 2.1 2.8 3.5 4.2 4.9 5.6
PI Qs
0.00 5.2 6.3 7.3 9.0 10.3 11.6 12.7 13.7 14.6
0.07 4.1 5.5 6.6 8.4 9.8 11.1 12.3 13.3 14.3
0.14 2.9 4.6 5.9 7.8 9.3 10.7 11.9 12.9 13.9
0.21 1.5 3.6 5.0 7.2 8.8 10.2 11.4 12.5 13.6
0.28 2.5 4.2 6.5 8.3 9.8 11.0 12.2 13.2
0.35 1.1 3.2 5.8 7.7 9.3 10.6 11.8 12.9
0.49 0.7 4.3 6.5 8.3 9.7 11.0 12.1
0.79 1.5 4.5 6.6 8.3 9.7 10.9
1.06 3.3 5.5 7.3 8.8
1.41 2.1 4.3 6.4
1.76 1.0 3.5
Qi 3.2 3.9 4.5 5.5 6.3 7.1 7.7 8.3 8.9
Wp 0.1 0.1 0.2 0.3 0.5 0.7 0.9 1.1 1.3
Model GW52000-25 GW52000-50 GW52000-80 GW52000-100 GW52000-125 GW52000-150 GW52000-200
Factor 0.25 1 2.56 4 6.3 9 16
Terminology Pi(Motive pressure) Pc(Outlet pressure) Qi(Motive Flow) Qs(Suction volume) Wp(Suction Water Power) Ps(Suction pressure)
unit barg barg m3/h m3/h kw 1bar

Capacity=(Data of GW52000-50)*f

The data listed in the table are standard, if customer's condition deviates from the above please contact us to satisfy the requirement

Liquid Jets Gas Eductor Applications

Gas evacuation:

In many industries and civil practices there are needs to evacuate gas from hermetic space. Priming of centrifugal pump with LJG eductor is one of the various uses. The volume being primed are generally small, so a small quantity of fluid (pressurized water/air)can be applied as motive flow of the eductor.GW LJG eductor is also a safe option where it is dangerous to use power driven exhaust.

Maintaining pressure:

Some apparatus need to keep their internal pressure within a certain extend during operation, meanwhile, there is gas produced or entrained during the process. In this case, GW LJG can be utilized to exhaust gas and keep the pressure at the expected value. The above figure shows an example which is a MBR apparatus for wastewater treatment: When pressure rises in the gas-water separator, a differential pressure signal is given to a motive flow valve which automatically opens and the LJG eductor is activated to draw gas from the separator until the pressure drops to the minus desired point. This configuration not only saves space and investment but also energy since the driving fluid sources (pressure air/water)are always available on-site

液气射流器原理图

Water Jet Vacuum Pumps

Water Jet Vacuum Performance Data

Water jet vacuum pump model GW52000-25 GW52000-50 GW52000-100 GW52000-150 GW52000-200 GW52000-250
Suction and outlet dimension DN25 DN50 DN100 DN150 DN200 DN250
Water pressure(mH2O) 25 25 25 25 25 25
Water volume(m3/h) 1.7 6.6 26 60 106 165
Vacuum(bar) 0.03 0.03 0.03 0.03 0.03 0.03
Ave.suction rate(m3/h)) 1.2 5 20 45 79 124
Max.suction rate(m3/h) 2.0 8 33 73 130 203
Water power(Kw) 0.11 0.44 1.78 4.00 7.11 11.1
Suction volume per 10 minutes(L) 55 220 900 2000 3500 5500
Note:Suction rates is inclusive of saturated vapor