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Liquid Ring Vacuum Pump LR1A400

Edwards offers a full range of liquid ring pumps. The LR1A400 provides a single-stage design and curved blade impellor with reinforcing rings for improved ruggedness, reducing noise and vibration.

All of our liquid ring pumps handle wet or dry gases, with high tolerance to liquid carry over. The LR1A Series has an enhanced bearing design enabling reduced internal clearances for improved ef ciency. Pumps are available in cast iron and 316 stainless steel construction as standard with other materials and corrosion-resistant coatings available. All are tested to DIN 28431:1987 and are available as part of ATEX Category 1 and 2 T4 systems.The LR1A400 is ideal for condenser evacuation, pulp and paper, ltration, vacuum forming and chemical and petrochemical applications.

Features and Bene ts

Optional central partition enabling dual ?vacuum duty operationVariable area discharge port for optimum ?performance at all inlet pressuresPacked gland, single and double ?mechanical seal optionsSplit packing gland design to facilitate ?repacking Internal and external seal ushing options?Internal recirculation option to reduce ?service liquid ow rateOptional inlet manifold and top-mounted ?separator to reduce footprint
The LR1A400 is a bare-shaft machine and can be supplied as part of a standard package, incorporating electric motor, base-plateand seal liquid recovery system, suitable for once through, partial or total recirculation. Custom-engineered packages are alsoavailable, please contact your local of ce for more complex process system requirements.