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Edwards LR-serie

Edwards LR Series Liquid Ring Vacuum Pumps - For rough vacuum applications in the chemical and allied process industries

Let us help you find the right product from this series

Product features

  • Application-matched vacuum technology → supports stable process pressure and reliable operation
  • Multiple configurations → enables selection around gas load, vacuum level and installation constraints
  • Edwards system integration options → simplify specification of complete vacuum solutions
  • Serviceable construction → supports planned maintenance and lifecycle control
  • Available in ATEX
  • Industrial-duty construction → supports repeatable operation under sustained loads
  • Verified technical documentation → enables model selection against actual process requirements
  • AxFlow product-selection support → helps align pump, controls and accessories with the application
  • Maintenance and service support → helps protect process continuity over the equipment lifecycle
  • Application-specific configuration → helps avoid oversizing, undersizing and unnecessary operating cost

Product description

The LR Series, including LR1A and LR1B single-stage models, are tolerant of particulates and operate with minimal maintenance and noise, making them ideal for your continuous operations in the power, chemical and process industries.

LR Series – Comprising of LR1A and LR1B models, these are one stage pumps designed for operation across the vacuum range, LR1A right down to 30 mbara whilst the LR1B pumps are optimised for applications at higher pressures above 300 mbara.


Edwards LR is used for chemijos, energetikos, celiuliozės ir kitoms drėgnoms procesų terpėms. It should be selected around the required vacuum level, gas load and process conditions. The exact configuration depends on the application.
Edwards LR is based on skysčio žiedo teigiamo tūrio veikimo principas. This technology creates or supports the vacuum required by the process. Performance must be checked against the selected model and operating point.
Check pumping speed, working and ultimate pressure, gas composition, temperature, cooling and connections. Verified product information includes LR siurbliai tinka drėgnoms arba sausoms dujoms; kai kurių LR konfigūracijų darbinis vakuumas siekia apie 33 mbar absoliutinį slėgį su vandeniu kaip sandarinimo skysčiu. AxFlow can help compare these requirements with the available Edwards configurations.
Maintenance depends on the technology, operating hours and process contamination. Follow Edwards service instructions and use the correct consumables and spare parts. Preventive maintenance helps reduce unplanned downtime.
AxFlow can support product selection for Edwards LR and help identify the appropriate configuration. AxFlow also provides service and spare-parts support for installed equipment. Contact AxFlow for availability and a quote.
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