Liquid Ring Vacuum Pumps LR1A EDWARDS Series

Liquid Ring Vacuum Pumps LR1A EDWARDS Series

Liquid Ring Vacuum Pumps LR1A EDWARDS Series full range of liquid ring pumps. The LR1A6500 provides a single-stage design and curved blade impellor with reinforcing rings for improved ruggedness, reducing noise and vibration.

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Liquid Ring Vacuum Pumps LR1A EDWARDS Series

The LR1A is a bare-shaft machine and can be supplied as part of a standard package, incorporating electric motor, base-plate and seal liquid recovery system, suitable for once through, partial or total recirculation. Custom engineered packages are also available, please contact your local office for more complex process system requirements.


The LR1A6500 is ideal for condenser evacuation, pulp and paper, filtration, flue gas desulphurization, vacuum forming and chemical and petrochemical applications.


Optional central partition enabling dual vacuum duty operation
Variable area discharge port for optimum performance at all inlet pressures
Flange-mounted casing construction for extra rigidity
Top and side inlet/outlet flange options for installations with limited headroom
Packed gland, single and double mechanical seal options
Split packing gland design to facilitate repacking
Internal and external seal flushing options
Internal recirculation option to reduce service liquid flow rate
Optional inlet manifold and top-mounted separator to reduce footprint


MODEL LR1A200 LR1A300 LR1A400 LR1A700 LR1A1200 LR1A1300 LR1A1600 LR1A2500 LR1A4000 LR1A5000 LR1A5500 LR1A6500
50 Hz
Nominal capaity (saturated) m3/h/CFM 170/100 260/150 350/205 600/350 170/100 1200/700 1550/900 2500/1500 2500/1500 4600/2700 5300/3100 6200/3700
Suction pressure mbar /Torr 33/25 33/25 33/25 33/25 33/25 33/25 33/25 33/25 33/25 160/120 33/25 160/120
Nominal speed rpm 1450 1450 1450 1450 1450 980 740 740 740 740 590 590
Nominal motor power kW/HP 5.5/7.5 7.5/10 Nov-15 18.5/25 5.5/7.5 37/50 45/60 75/100 75/100 110/150 132/200 160/200



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