Liquid ring vacuum pumps

Edwards LR1D series

The Edwards LR1D series at a glance: 12 models from the field of liquid ring vacuum pumps – with technical data, variants and the option to send an enquiry.

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  • 12Models
  • 20–1,340m³/h pumping speed at 50 Hz
  • 30mbar ultimate pressure
  • 0.9–42.15kW rated motor power at 50 Hz
Operating principle: Liquid ring vacuum pumps (schematic drawing)
Operating principle: Liquid ring vacuum pumps

Product overview

Products of the Edwards LR1D series

Use the filters on the left to narrow the models down by their key figures. Each row leads to the model with its technical data and variants.

Edwards LR1D0035Pumping speed 20 m³/h 50 Hz28.8 m³/h 60 HzUltimate pressure 30 mbarRated motor power 0.9 kW 50 Hz1.12 kW 60 HzVariants 4
Edwards LR1D0060Pumping speed 42.6 m³/h 50 Hz45.7 m³/h 60 HzUltimate pressure 30 mbarRated motor power 1.94 kW 50 Hz2.24 kW 60 HzVariants 4
Edwards LR1D0100Pumping speed 69.5 m³/h 50 Hz90.1 m³/h 60 HzUltimate pressure 30 mbarRated motor power 2.8 kW 50 Hz4.1 kW 60 HzVariants 4
Edwards LR1D0135Pumping speed 101.1 m³/h 50 Hz130.5 m³/h 60 HzUltimate pressure 30 mbarRated motor power 3.06 kW 50 Hz4.1 kW 60 HzVariants 4
Edwards LR1D0170Pumping speed 117.7 m³/h 50 Hz148.2 m³/h 60 HzUltimate pressure 30 mbarRated motor power 3.8 kW 50 Hz4.1 kW 60 HzVariants 4
Edwards LR1D0260Pumping speed 168.5 m³/h 50 Hz208 m³/h 60 HzUltimate pressure 30 mbarRated motor power 5.78 kW 50 Hz7.46 kW 60 HzVariants 4
Edwards LR1D0340Pumping speed 252.7 m³/h 50 Hz301.6 m³/h 60 HzUltimate pressure 30 mbarRated motor power 7.8 kW 50 Hz11.19 kW 60 HzVariants 2
Edwards LR1D0510Pumping speed 336 m³/h 50 Hz393.2 m³/h 60 HzUltimate pressure 30 mbarRated motor power 10.82 kW 50 Hz14.92 kW 60 HzVariants 2
Edwards LR1D0770Pumping speed 476.7 m³/h 50 Hz578.7 m³/h 60 HzUltimate pressure 30 mbarRated motor power 14.92 kW 50 Hz18.65 kW 60 HzVariants 3
Edwards LR1D0940Pumping speed 729.6 m³/h 50 Hz880.5 m³/h 60 HzUltimate pressure 30 mbarRated motor power 23.13 kW 50 Hz29.84 kW 60 HzVariants 3
Edwards LR1D1280Pumping speed 951.5 m³/h 50 Hz1,193.4 m³/h 60 HzUltimate pressure 30 mbarRated motor power 28.35 kW 50 Hz41.03 kW 60 HzVariants 3
Edwards LR1D2040Pumping speed 1,340 m³/h 50 Hz1,644.1 m³/h 60 HzUltimate pressure 30 mbarRated motor power 42.15 kW 50 Hz60.43 kW 60 HzVariants 3

Model comparison

About the series

Technology and features

Operating principle

Liquid ring vacuum pumps, built from high-quality materials such as stainless steel and ceramics, are used predominantly in humid and wet processes. An eccentrically mounted impeller forms a liquid ring in the operating liquid, which draws in, compresses and discharges the gas. The pumps are extremely quiet, insensitive to condensate and low-wear.

The technology page shows the operating principle with an interactive drawing: Liquid ring vacuum pumps.

Features of the series

  • Single-stage design with valve plate
  • Mechanical seals flushed via internal channels – only operating liquid required
  • Materials from grey cast iron to stainless steel 316 for corrosive media
  • As a compact monobloc motor pump (60 Hz) or as a lantern-mounted version for a standard motor

Manufacturer's data as given in the product descriptions of the individual models.

Frequently asked questions

Questions about the Edwards LR1D series

Which models does the Edwards LR1D series comprise?
The Ehrler & Beck catalogue lists 12 models of the series. The product overview names each model with its key figures and the number of its variants; the model page shows the technical data.
Which pumping speeds does the series cover?
At 50 Hz the models cover pumping speeds from 20 to 1,340 m³/h. The figure comes from the product data of the individual models; values for 60 Hz, where available, are given in the product overview.
What ultimate pressure do the models of the series reach?
The ultimate pressure is 30 mbar. The figures on the page of the respective model are decisive.
How does the technology of the series work?
The series belongs to the field of liquid ring vacuum pumps. The technology page explains the operating principle with an interactive drawing and names all series of this technology.
Does Ehrler & Beck supply spare parts and service for the Edwards LR1D series?
Yes. Ehrler & Beck supplies the models of the series as well as spare parts and accessories and takes care of maintenance and repair. For a quotation, an enquiry with the model or part number is all it takes.

Which model fits your process?

Tell us the gas to be conveyed, the working pressure and the flow rate you need – we will advise you on selection, spare parts and service.

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